Thursday, December 14, 2017

Going to DesignCon 2018 in Santa Clara?

See Teledyne LeCroy at #DesignCon!
Register now and save 20% on your choice of an All-Access or 2-Day Pass by using this promo code GUEST—or claim your complimentary Expo Pass.

Wednesday, December 13, 2017

Creating RF Test Instruments With Programmable USB Modules

There is a trend in increasing use of mix-and-match USB-powered RF measurement devices to create powerful RF test set-ups. 

Creating a custom automated test system for RF signals up to 18 GHz usually requires costly instruments controlled from a PC. Computer-controlled test equipment once required racks of instruments connected to a control computer via GPIB. But GPIB has all but disappeared in new equipment and there is an increasing trend of using USB modules to quickly making test systems with laptop control that are affordable and that fit in a briefcase for field work.  No longer do you need to have a customized rackmount system specially designed for you.  You can build what you need with reusable USB RF building blocks.Telemakus is one of several companies now offering high-frequency measurement and signal generation functions through 18 GHz that take advantage of a laptop or personal computer (PC) for its processing and display capabilities.

Telemakus RF modules put the subsections of complex bench instruments into USB-powered and USB-controlled modules that can be interconnected to create just the components needed for specific testing situations, reducing equipment cost outlay dramatically.  A growing number of RF test functionalities are now possible simply by connecting novel USB-connected RF devices to a personal computer.  Automated measurement systems can be created by attaching specific Universal Serial Bus (USB) dongles to a personal computer and controlling them with Telemakus’ free GUI software provided.  Among the functionalities available now are frequency synthesizers, vector modulators, phase shifters, RF switches, amplifiers, and root-mean-square (RMS) power meters. 

Telemakus’ USB2.0 modules work with any Windows PC, and as many as 127 USB devices can be connected through a USB hub.  Each of these versatile USB test modules contains built-in memory and a microprocessor to store program and calibration data, and they leverage the PC's display and processing capabilities to clearly indicate and interpret RF and microwave measurements. All of the USB instruments are supported and controlled by simple graphical user interface (GUI) software that enables setting of controls and entering data points for measurements.  This makes for an extremely portable RF test solution that can be slipped into the pocket of the laptop PC’s bag, ready for field work at a moment’s notice.

For instance, to create a customized test system, a synthesized signal generator can be combined with a 7 bit, 0.25dB attenuator to control output power, and connected to a power amplifier for connection with a device under test; a USB-connected Power Sensor can measure the output signal, and all these modules and their outputs can be monitored and controlled using the user-friendly graphical software package provided, rivaling the functionality of a very expensive scalar network analyzer.  Tremendous cost savings can be obtained this way, not to mention the extreme portability of the solution for field work.  These innovative modules leverage the enormous power and capabilities of the PC.  Each module has its own flash memory and microprocessor, so the calibration parameters for each device are stored internally.

The TEV2700-45 RF Vector Modulator is ideal for vector signal measurements, beam-forming, and amplitude and/or phase-correction applications. It accepts inputs to +23 dBm from 1800 to 2700 MHz and provides at least a 360 degree phase control range with 12bit resolution and 45-dB dynamic range. Input signals are fed in via an SMA male connector, with outputs are also available on an SMA female connector. Signals are subjected to less than 6dB insertion loss as part of the modulation process, with 9dB typical return loss. Each vector modulator is factory-calibrated at three frequencies, but additional calibration points can be added by the user. An easy-to-use graphical interface facilitates keypad or on-screen slider controls data entry.  

Telemakus Frequency Synthesizers are stabilized by an internal 10 MHz crystal reference oscillator with excellent temperature stability. Model TEG250-15 is the lowest-frequency signal source member, tunable from 140 MHz to 250 MHz in steps as small as 1 kHz. It delivers +15dBm low-spurious output power across the whole bandwidth, with better than  -118dBc/Hz phase noise. The tiny signal generator features on/off power control and draws 150 mA from the USB’s +5VDC.  For generating microwave test signals, the TEG10200-1 provides +15dBm from 9.3 to 10.2 GHz, and uses an internal 10 MHz crystal reference oscillator with 2.5ppm frequency stability from -40 to +55degC. It achieves phase noise of -95 dBc/Hz offset 100 kHz from the carrier, with spurious levels of -75 dBc, second harmonics of -20 dBc, and third harmonics of -30 dBc, drawing 250 mA from the USB port. Other signal generators cover frequency ranges of 700 to 1000 MHz (TEG1000-10), 1800 to 2700 MHz (TEG-2700-6), and 2700 to 3500 MHz (TEG3500-8), with phase noise of -105 dBc/Hz phase noise offset 10 kHz from the carrier. A simple visual GUI can control multiple USB frequency synthesizers for multi-tone testing situations. The GUI allows a choice of tuning in steps of 1 kHz, 10 kHz, 100 kHz, and 1 MHz.

USB module RF Amplifiers are available for boosting signals when needed:  for instance, TAMP6000-15 provides 15 dB gain from 100 MHz to 6 GHz with +19 dBm typical output power at 2 GHz and 1dB compression.

Several true RMS Power Meters are also available: TED10200-45 has a 45 dB dynamic range from 9.3 to 10.2 GHz, with RF power being measured using a built-in logarithmic detector.  An internal temperature sensor ensures accuracy over a wide temperature range, and it can handle inputs to +20 dBm from an SMA male connector with accuracy of 0.5dB to +10dBm. TED6000-50 power meter suits 50 MHz to 6 GHz frequencies, and TED14500-45 is available for 14.0 to 14.5 GHz.

Phase Shifters are a critical component in many RF and microwave systems. The Telemakus family of octave-wide phase shifters provide precision control of RF and microwave frequencies – again housed in USB thumb-drive-sized modules. These phase shifters boasts greater than 360 degree phase range and low insertion loss. Applications include controlling the relative phase of each element in a phase array antenna in a radar or steerable communications link and for cancelation loops used in high linearity amplifiers. Telemakus offers modules that can control phase by at least 360degrees from 1 GHz up to 18 GHz in different modules, with insertion losses of around -4 dB.  

The Telemakus’ software API was created to assist users in developing creative and cost effective RF test applications using their USB devices across a wide variety of programming languages and development tools. The .NET- based common programming interface simplifies the task of integrating multiple devices into larger complex systems. A user can quickly design a very robust application by following just a few simple guidelines for managing how and when the USB pipes are opened and closed for each device. Adding a level of USB management to the error handler of the application can further strengthen its robustness. The possibilities of USB-controlled RF test equipment are limited only by the creativity of the developer. Not only can these devices be controlled by a PC, but they can be plugged into and operated from the front panel display of other Windows-based test instruments. The Telemakus API also allows installation of their range of USB-controlled RF products in LabView-based RF test applications.


Using any Windows PC and a USB hub, multiple USB  RF modules can be connected and controlled to build up a complex system of RF functions that include switches, attenuators, amplifiers, signal generators, vector modulators, phase shifters, frequency doublers, and power detectors.   But any of these modules can be used individually to perform a single signal modification function.  It is now easy and economical to combine various USB modules together to assemble a custom, reconfigurable and extremely portable RF test system, creating the features of expensive benchtop systems such as network analyzers, and synthesized signal generators at a fraction of their cost, with a resulting system that rivals expensive benchtop equipment with the portability of a laptop PC.

Tuesday, December 12, 2017

Price Drop! Wireless Scope Now Under $300!

The IkaScope WS200 is a pen-shaped battery-powered wireless oscilloscope that streams captured signals to almost any WiFi-connected screen.  The IkaScope WS200 offers a 30MHz bandwidth with its 200MSa/s sampling rate and the maximum input is +/-40Vpp.  It provides galvanically-isolated measurements even when a USB connection is charging the internal battery.  The IkaScope WS200 will work on desktop computers (Windows, Mac, and Linux) as well as on mobile devices like tablets or smartphones (iOS and Android Q4 2017).  The free application software can be downloaded for whichever platform is needed. 

The IkaScope WS200 has no power switch; it detects pressure on the probe tip and turns on automatically.  Patented ProbeClick technology saves battery life: all power-consuming circuitry is only turned on when the probe tip is pressed, and the IkaScope WS200 automatically shuts down completely after a short period of non-use. The internal 450mAh battery lasts about one week with daily regular use before recharging is necessary. An isolated USB connection allows for recharging the internal battery: two LEDs in the unit indicate battery charge and WiFi status. 
Clicking the Autoset button on the IkaScope software automatically adjusts gain and time-base to quickly view the signal optimally.  The IkaScope WS200 also knows when to measure and when to hold the signal display without the need for a Run/Stop button. The IkaScope's innovative Automatic History feature saves a capture of the signal when releasing pressure on the ProbeClick tip.  The History Database is divided into Current Session and Favorites, where signal captures are permanently saved, even after the application is closed.  Previously measured signals can quickly be recalled.  
Most desktop oscilloscopes have a static reference grid with a fixed number of divisions, but the IkaScope allows pinch and zoom on touch screens (or zoom in/out with a mouse wheel), stretching the grid and allowing an operator to move and zoom through a signal capture for detailed review.  The associated software even has a share button on the screen: simply click on it to share screenshot measurements.

Monday, December 11, 2017

Torque Transducers Test Advanced Electric and Hybrid Powertrains

Wireless rotary torque transducers from Sensor Technology Ltd are at the heart of a test rig to develop next generation technologies for electric and hybrid vehicle powertrains. With unique expertise in the electric motors and electronics used across the key powertrain technologies, AVID Technology relies on the innovative torque transducers as part of an automated approach to motor characterization.

Climate change, urban air quality and the rising cost of energy have become the defining issues of the 21st century. With energy consumption and exhaust emissions from vehicles and transport being significant contributors to these issues, governments across the world are driving moves to secure a future where the air is safe to breathe and transport is more sustainable.

In the UK this has seen the introduction of the government’s draft clean air policy, along with the announcement that sales of petrol-only and diesel-only vehicles will be banned from 2040, bringing the role of hybrid and electric vehicles to the fore. In evolutionary terms, these technologies are still in their infancy, and this is where AVID Technology comes in.

Based in the North-East of England, which is now a world-recognized center for automotive development, AVID Technology is a renowned leader in the design and manufacture of electrified powertrain and advanced thermal management systems for heavy-duty and high-performance electric and hybrid vehicles. Its technology also improves conventional internal combustion engine efficiency through parasitic loss reduction, efficient thermal management, lubrication, electrified ancillary systems and waste heat recovery.

The company develops powertrain improvement solutions for a wide range of electric and hybrid vehicle applications, including high performance passenger cars, heavy duty buses and trucks, as well as motorsport vehicles and off highway machinery. Its high efficiency electric motor and power electronics technology delivers class-leading electrified powertrains and propulsion systems.

In order to test and characterize the high performance electric motors used in electric and hybrid powertrains, AVID Technology designed and built a special purpose test rig. Central to the design of the test rig is an innovative wireless rotary torque measurement device from Sensor Technology. These non-contact surface wave acoustic (SAW) transducers offer significant advantages compared with strain gauges, magnetic torque sensors and optical devices that might be fitted to a conventional dynamometer for motor characterization.

Sensor Technology SAW-based devices are non-contact, robust and highly accurate. TorqSense torque sensors use two tiny SAW devices made of ceramic piezoelectric material containing frequency resonating combs. These are glued onto the drive shaft at 90 degrees to one another. As the torque increases the combs expand or contract proportionally to the torque being applied. In effect the combs act similarly to strain gauges but measure changes in resonant frequency.

The adjacent RF pickup emits radio waves towards the SAWs, which are then reflected back. The change in frequency of the reflected waves identifies the current torque. This arrangement means there is no need to supply power to the SAWs, so the sensor is non-contact and wireless.

These characteristics make the TorqSense transducers ideal for use in the stepper drive test rig. AVID Technology sales director Jordan Taylor explains: “The TorqSense transducer was chosen as it allowed us to use a fixed pedestal load motor and eliminate frictional losses and parallax errors from the load installation in the measurements. This allows AVID to produce very accurate performance characterization results compared to a conventional motor dynamometer.”

Not only has the sensor delivered superior and more accurate characterization results, it also enabled AVID to design a simpler test rig.

Reporting that the device has performed flawlessly in the application to date, AVID Technology is confident that its test rig will be key in enabling it to provide even smarter powertrain electrification, delivering on its vision of a cleaner, greener world.

Friday, December 8, 2017

Sync/update USB products from anywhere!

EtherSync is a network attachable USB charge and sync device that allows USB devices to connect to an Ethernet network. EtherSync is available with multiple USB connections which can be used for peripheral devices, tablets and smartphones.  Like our other products, EtherSync is universal and also offers a full 2.1A to each port.

Instead of using an expensive and vulnerable lap-top to manage your devices, you can use EtherSync anywhere Ethernet is available.
EtherSync enables a host computer to remotely access USB ports. This can be used, for example, to charge and sync tablet devices  in different classrooms from one central location, such as the ICT office. Each classroom would have one or more EtherSync units which is then accessed via Ethernet. This enables remote management of the tablets, which could be centralised to save time in visiting each classroom to perform OS or security updates, or physically moving them all to one location to change content.
EtherSync is not just designed for education. Health, retail or any other organisation could reduce costs and time by managing their USB devices remotely.
EtherSync will enable the remote management of tablets using existing, familiar tools such as iTunes and Configurator.
As with all Cambrionix products EtherSync comes with fully supported software and is upgradeable and ‘future proof.’

Thursday, December 7, 2017

MSR Data Loggers determine the causes of damage during transit

Case study Belimo Automation

The Swiss company Belimo Automation AG – worldwide leader for actuator and valve technology in heating, ventilation and air conditioning systems – has printed circuit board assemblies for heating, ventilation and climate controls produced in China and in the Philippines. The printed circuit boards stored in the containers in cardboard boxes and blister packaging are especially sensitive towards exposure to humidity. In particular, it is the slide switches and plug-in connectors on the printed circuit boards that would be damaged by excessively high moisture levels or even direct exposure to water.

Once a week a standard container, loaded with products for this company only, arrives in Switzerland, following an approximately six-week sea voyage and subsequent land transport.

Belimo decided to employ the MSR145data loggers in order to monitor and document the transport conditions.

Click here to read the detailed user report...

Tuesday, December 5, 2017

Siglent SDS1000X-E is an ACE Finalist!

Siglent Technologies has been chosen as a finalist for the 2017 ACE Awards (Annual Creativity Awards) which is given out yearly in conjunction with EE Times and EDN. The winner will be named at this year's ESC – Silicon Valley (Embedded Systems Conference) on Wednesday, December 6 in San Jose, CA. 

Monday, December 4, 2017

Rules for a Successful Networking Lunch

Betty Liu on LinkedIn writes some useful and sage advice!

5 Unwritten Rules for a Successful Networking Lunch:

Here's how to take full advantage of your next networking lunch:

1. Show up on time and confirm beforehand. It may seem pretty basic, but I've had lunch meetings end with me or my companion sitting at a table alone because one of us failed to confirm beforehand. Always find time the day before to confirm the time and place of the lunch so that you're both on the same page. And always arrive a few minutes early—being late is the easiest way to give someone a piece of information that can be used to pre-judge you.

2. Be well read. I get it. You're extremely busy building your business. You're working 24/7 at your job. There's really no excuse not to be up-to-date on major world news events. Remember that whoever you're trying to impress will have a lot of other interests besides his or her own business—being able to show that you're well-versed in politics, sports, or entertainment will enhance your conversational abilities, not to mention make you a more interesting person overall. I haven't spoken to one single successful person who isn't a voracious reader of newspapers and news sites.

3. Try to find a personal connection. Robert Wolf, a former Wall Street banker and one of former President Obama's close friends, is a master networker. You'd be hard-pressed to find someone he can't get to with his vast Rolodex. Wolf says he makes it a special point to remember personal details of people he's just met, which helps in fostering a connection outside of business. "I'm always putting notes in my contacts," he said in an episode of the Radiate podcast"If I'm having lunch or dinner with someone, and they tell me that their daughter is going to Penn, I like to remember those things. Those things are important."

4. Take the other person's lead on ordering. There's usually an alpha at the table who sets the tone, even if he or she is being extremely deferential, saying things like "Please go ahead" when the waiter or waitress comes. Make sure you figure out what the alpha wants to do so you don't go and order the three-course meal when he or she needs to run in 30 minutes time. Or order wine when the other abstains. There's a certain etiquette when dining with someone new. Again, don't trip up on small things that allow people to make judgments. (You don't want them to hear them say "Well, they sure like their three-martini lunches.")

5. Know how to graciously end a meal. Nobody likes to look at his or her watch or phone during a meal, but at some point, you know you have to go. The problem is often people wait until the very end of a meal to leap into the one thing they've wanted to talk about. The best way to effectively end a lunch date is to say to your lunch partner, "What time is your next appointment?" This gives that person an excuse to check the time and say when he or she has to leave so that you know when you'll need to wrap up. Lingering on and on in a conversation is excruciating, while ending abruptly without delivering the goods is a total waste of time. So once coffee is served, ask the key question and then execute on the out.

Friday, December 1, 2017

Thermometer or Thermostat?

Here’s a thought-provoking question I just saw:

Are you a thermometer or a thermostat?

See the source image

A thermometer is affected by its surroundings. Depending on the temperature, it goes up or down.

In contrast, a thermostat affects its surroundings. Unlike the thermometer, it controls the environment around it.

Do you merely react to what is happening around you, or do you have some kind of impact on it? Are you changing the culture, or is the culture changing you?

Thursday, November 30, 2017

The Little 3GHz High Resolution Frequency Counter That Could

The Aim-TTi PFM3000 3GHz Hand-Held Counter. Wide frequency range and high resolution The PFM3000 offers high sensitivity frequency measurement from 3Hz to more than 3GHz in two overlapping ranges.  Period measurement is also provided from 8ns to 330ms. The PFM3000 uses a continuous reciprocal measurement technique to provide high resolution at all frequencies with rapid update.It offers high sensitivity across the whole frequency range. A low pass filter can be selected to reduce high frequency signal noise at lower frequencies.   Large and clear display Despite its compact dimensions, the PFM3000 incorporates a large 8 digit LCD.  

Annunciators are provided for measurement function, measurement time, overflow, trigger activity, low battery, and measurement units. Low power consumption and push-to-measure Despite its wide frequency range the PFM3000 has a power consumption that enables it to operate for many hours from a PP3 size battery. A push-to-measure capability gives an instantaneous reading followed by an automatic power down after 15 seconds.  This provides greatly extended battery life where continuous monitoring of the signal is not required. Bench-top use The PFM3000 has the performance needed for many bench-top applications, and its built-in tilt stand sets the display at a convenient angle.

  • 3GHz Hand-Held Counter
  • PFM3000 3GHz Hand-Held Counter
  • 3 Hz to 3000 MHz in two overlapping ranges
  • High input sensitivity over the full frequency range
  • High impedance measurement up to 125 MHz

More here:

Wednesday, November 29, 2017

Rigol Drops Scope prices!

There's fierce competition between to the two main bargain scope manufacturers: Rigol & Siglent.

Rigol's response has been to lower prices on all its Z models, which now start at $349.  And they've thrown in all the software options for free!

Let the battle continue!

Tuesday, November 28, 2017

Saelig Intros Economical 4-Channel 100/200MHz SDS1000X-E “Super Phosphor” Oscilloscopes

Saelig Co. Inc. has introduced the Siglent SDS1104X-E (100MHz) and SDS1204X-E (200MHz) four-channel oscilloscopes that are built on the same platform as the very popular SDS1202X-E but with many improvements, including two 1GSa/s ADCs and two 14Mpt memory modules. Waveform capture rates are up to 100,000wfms/s in normal mode and 400,000wfms/s in sequence mode.  The SDS1000X-E scopes feature a large 7” 256-level color display with intensity grading and color temperature features to show signal event occurrence statistics.

The new 4-channel SDS1000X-E series employs a new generation of SPO (Super -Phosphor Oscilloscope) technology that provides excellent signal fidelity and performance since a hardware co-processor delivers measurements quickly and accurately without slowing acquisition or front-panel response.  Additionally, the low-noise design allows measurements of very small signals since the scopes support 500uV/div to 10V/div voltage settings, with most common adjustments quickly accessible with single-button front-panel control. 

Fast four-channel sampling is achieved with the two-ADC front-end design: when all channels are enabled, each channel has sample rate of 500MSa/s and a standard record length of 7Mpts. When only one channel per ADC is active, the maximum sample rate is 1GSa/s and the maximum record length is 14Mpts.  This new Siglent oscilloscope series supports multiple powerful triggering modes (Edge, Slope, Pulse Width, Window, Runt, Interval, Dropout, Pattern, Video) but also include serial bus data triggering since decoding for IIC, SPI, UART, CAN, LIN bus types is included as standard. The X-E models also include History waveform recording, and sequential triggering to facilitate extended waveform recording and analysis. A 1 million point FFT math function gives the SDS1000X-E very high frequency resolution when observing signal spectra. 

The SDS1000X-E series four channel scopes also feature searching and navigating, on-screen Bode plots (gain/ phase vs. frequency), 16 digital channels (option), an external USB powered 25MHz AWG module (option), a Siglent USB 802.11b/g/b WiFi adapter (option), and an embedded application that allows remote control of the instrument via a web browser for configuration, collecting data, or for remote troubleshooting and monitoring.

Supplied with four passive probes, the Siglent SDS1000X-E 4-channel oscilloscopes are available now from only $499 from Saelig Company, Inc.  A full range of current and voltage probes is also available.

Dave Jones tears down the new Siglent SDS1104X-E in this video:

Monday, November 27, 2017

Managing Obsolescence

Stuart Broadbent - Obsolescence Director at Alstom Transport and member of the Component Obsolescence Group (COG) - writes in Rail Engineer

"The increased use of electronic systems in rolling stock and rail infrastructure undoubtedly improves operational efficiency and safety for the rail operator as well as enhancing the passenger experience. For the rail engineer, however, these electronic systems come with the added challenge of managing obsolescence.  

Most component and equipment manufacturers are focused on their next-generation products and on emerging technologies. This reliance on research and development to provide new revenue streams means that today’s hot new products quickly become commodity and then legacy parts as the manufacturers follow timescales which are driven by fast- moving consumer markets.

Consider the mobile phone industry for example. Mobile-phone users will expect to upgrade their handsets every 18 to 24 months, whereas the planned lifecycle for rolling stock usually stretches to 30 or 40 years.

There is also a significant difference in the volume of units shipped to the consumer and rail industries. Analysts predict that global shipments of mobile handsets will reach 2.5 billion units in 2014. Compare that to the amount of components used in rolling stock, signals, rail infrastructure and passenger information systems and the difference in the production volumes of the two sectors becomes apparent."

One way to attack obsolescence is to make sure obsolete PCBs are well documented.  A useful tool for doing this - and even recreating the board - is ABI Electronics' RevEng.

ABI RevEng XP Cabinet Systems 512 Channels

Here's an article dealing with the recreation of undocumented PCBs.

Tuesday, November 21, 2017

CyberWeek Deals

Everybody seems to go crazy around Thanksgiving looking for bargains.  So of course we at Saelig want to join in the fun.

Cyber Week Sale

Our newsletter recipients will be getting special deals - so make sure you're signed up to find out about these offers!

Monday, November 20, 2017

How To Use A Spectrum Analyzer (video)

Spectrum Analyzers measure the magnitude of input signals at each frequency within the range of the instrument, showing the power spectrum of signals. By analyzing the spectra of electrical signals, peak frequency, power, distortion, harmonics, bandwidth, and other spectral components of a signal can be observed that are not easily seen in time domain waveform displays. These parameters are useful in the characterization of electronic devices, such as wireless transmitters.

here's a helpful video by Jason Chonko from Siglent Technologies:

Friday, November 17, 2017

Pico Technology's USB TC-08 Thermocouple Data Logger (+ Video)

USB TC-08 Thermocouple Data Logger
The TC-08 thermocouple data logger offers industry-leading performance and a cost-effective solution to your temperature measuring needs.
  • 8 channel thermocouple data logger
  • Measures from -270 to 1820 °C
  • Automatic cold junction compensation
  • High resolution and accuracy
  • Fast sampling rate
  • Multiple units can be run on a single PC
  • USB interface

PICO USB TC-08 8-channel thermocouple data logger  (PP222)

Wide temperature range

The TC-08 thermocouple data logger is designed to measure a wide range of temperatures using any thermocouple that has a miniature size thermocouple connector. Additionally, the TC-08 can also measure other sensors using a 70 mV range.
Featuring built-in cold junction compensation (CJC), the TC-08 has an effective temperature range of -270 to 1820 °C (The actual temperature range depends on the thermocouple being used.)

All the benefits of USB

The TC-08 connects to the USB port of a Windows based PC and enables the host PC to automatically detect the TC-08 " avoiding the need for any complex setup procedures. The USB connection also allows the TC-08 to be powered directly by the USB bus " eliminating the need for an external power supply and making the TC-08 ideal for measuring temperatures both in the lab and in the field.
The TC-08's USB connectivity allows up to 10 TC-08 USB data loggers to be used simultaneously on one PC " making the TC-08 ideal for use as a large multi-channel temperature acquisition system with a cost per channel significantly lower than other systems of this size.

Fast and accurate temperature data acquisition

With the TC-08 thermocouple data logger your measurements can be made both fast and accurately.
The low conversion time of the TC-08 means up to 10 temperature measurements can be taken every second. Whilst the high (20 bit) resolution ensures that the TC-08 can detect minute changes in temperature.

All you need in one easy-to-use unit

Temperature data acquisition with the TC-08 is very easy, simply plug the TC-08 into a USB port on your computer, connect your thermocouples, and you are ready to measure temperatures.
The easy-to-use PicoLog data acquisition software is supplied with the TC-08 - allowing you to start measuring and recording temperatures with the minimum amount of effort. The intuitive user interface of PicoLog makes it easy for you to set how frequently you want to take a measurement, and the number of measurements you want to take.

Here's a video showing the use of the Pico USB TC-08 with temperature and relative humidity sensors to create a  humidity and temperature data logger. The TC-08 can use any thermocouple that has a miniature size TC connector.

Thursday, November 16, 2017

Amfeltec makes PCI and PCIe Expansion Backplanes and In-Circuit Programmers

Founded in 1989 and Incorporated in 2004, Amfeltec Corporation is dedicated to electronic design and engineering support of electronic manufacturing. Amfeltec has decades of expertise from highly qualified hardware and software engineers in fully equipped design and testing facilities. Amfeltec continues to develop new products built to enable design engineers to quickly assess their projects. The products also give contract manufacturers and process engineers the ability to offer programming and engineering support for the designed products with relative ease.

Wednesday, November 15, 2017

Saelig Acquires Jeffrey Kerr LLC Motion Control Product Line

Fairport, NY:  Saelig Company Inc., a Fairport-based small business distributing electronics and electronic test and measurement equipment, has just acquired the product lines and inventory assets of Jeffrey Kerr, LLC, a Californian maker of servo and stepper motor control boards and ICs.  Saelig will now own the fabrication and distribution of the JRKerr products, which include I/O and motion controllers and related products in addition to servo and stepper motor controllers.  Located on Perinton Parkway, Saelig’s other products include oscilloscopes, spectrum analyzers, waveform generators, universal circuit board diagnostic systems, and RF-shielded test and forensic enclosures.


JEFFREY KERR, LLC has manufactured its motion control product line for the last 22 years, and Saelig has been a primary stocking distributor of this line for the past 12 years.  The two companies have worked closely over the past decade on the sale and support of these products, and both have worked hard over recent months to ensure that this transition is completely transparent to their loyal customers.  No changes are planned to the product line or to its pricing or availability.

Furthermore, Jeff Kerr, the original designer of this product line, will continue to provide the same product technical support as he has done for the last 22 years. The circuit boards will still be made by the same manufacturing house, the ICs will be programmed by the same programming device, and the in-house test procedures will be identical to those used hitherto.

Link to the JRKerr products:

Orders for JRKerr products can continue to be placed through Saelig just as has been previously done.  For detailed specifications, free technical assistance, or additional information, contact Saelig at or 1-877-7SAELIG  (1-877-772-3544).

Tuesday, November 14, 2017

4-ch Channel High Resolution Oscilloscope With Differential Inputs

The PicoScope 4444 High-resolution Differential Oscilloscope features four true differential input channels and a range of accessories for measurements from millivolt to 1000 V CAT III applications. It has been designed specifically for making accurate voltage waveform measurements on circuits that are not ground-referenced, avoiding the dangers of equipment damage due to short circuits.

The PicoScope 4444 can facilitate differential voltage measurements in the presence of common-mode signals, with 14-bit resolution and 20MHz bandwidth on all four differential channels and 256MSa waveform capture memory. It is ideal for the precise analysis of complex waveforms ranging from biomedical sensors to current probes and 1000 V CAT III power distribution circuits. The PicoScope 4444 offers a choice of complementary 1:1 low-voltage and 25:1 1000V CAT III probes to address these and other situations. The oscilloscope has an intelligent probe interface that can provide power for a wide range of PicoConnect voltage probes, current probes such as Hall effect DC/AC, and Rogowski coil type active current probes. The scope automatically detects when a compatible probe is connected and sets the corresponding units and vertical settings in the supplied PicoScope 6 software.

The USB-powered PicoScope 4444 is available in two kits that include key accessories:

·         PicoScope 4444 Standard Differential Oscilloscope Kit, consisting of a PicoScope 4444, three differential 1:1 probes and one TA271 BNC single input adaptor.

·         PicoScope 4444 1000 V CAT III Differential Oscilloscope Kit, consisting of a PicoScope 4444, three 1000 V CAT III 25:1 differential probes and one BNC input adaptor.

Scientists and electronics engineers frequently need to make low-voltage measurements in the presence of high common-mode noise or varying offset voltages. Ground-referenced oscilloscopes require the use of two input channels and an A–B math function to observe the differential signal of interest. But, in addition to requiring two input channels, most scopes don’t have a high enough common-mode rejection ratio (CMRR), nor the resolution to make measurements with sufficient precision.  Engineers working on polyphase power distribution systems need to measure phase-to-phase AC voltages, rather than phase to ground. A ground-referenced scope can’t be used as it will cause a short circuit. External differential probes are a solution but they are quite expensive and cumbersome, with each probe requiring its own power supply. The PicoScope 4444 provides the solutions for each of these situations, but it can also be used as a general purpose scope with all the useful features that PicoScope software provides - such as serial bus decoding, mask and limit testing, math channels and automatic measurements.
Made by Pico Technology, Europe’s award-winning oscilloscope adapter manufacturer, PicoScope 4444 High-resolution Differential Oscilloscopes are available now from Saelig Company, Inc. their USA technical distributor. For detailed specifications, free technical assistance, or additional information, please contact Saelig 888-7SAELIG, via email:, or visit