Friday, November 22, 2019

New 2-Ch 16-bit Function/Arbitrary Waveform Generators

New Rigol Technologies DG2000 Series Two-Channel 16-bit Function/Arbitrary Waveform Generators are available in 50/70/100MHz versions. Unique SiFi II technology with 16 Mpts memory depth per channel builds waveforms point-by-point: http://www.saelig.com/category/dg2000-series.htm


Tuesday, November 19, 2019

Monitor Vehicle CANbus Signals Easily!


PICO CAN Test Box TA069 allows you to connect a PicoScope oscilloscope  to monitor any signals present, such as the CAN High and Low signals. The CAN Test Box terminal pin ports are accessible with standard 4 mm jacks. The CAN Test Box connects to the vehicle᾿s OBDII / EOBD connector and lets you easily diagnose electrical faults.

·         Instantly check power and ground circuits

·         Identify communication link protocols

·         Connect an oscilloscope for signal capture and collection of signal waveform data.

The CAN Test Box uses numbered backlit LEDs which illuminate when signal data is present on the corresponding pin of the DLC. Pulsing LEDs indicate signals being transferred high/low.

·         LED 1/9 - 485A/485B (Manufacturer’s proprietary information)

·         LED 2/10 - Bus+ Line J1850/Bus- Line J1850

·         LED 3/8/12/13 - future upgrade

·         LED 4 - Chassis GND (GROUND)

·         LED 5 - Signal GND (SIGNAL)

·         LED 6/14 - CAN High of SAE J2284/CAN Low of SAE J2284

·         LED 7/15 K Line of ISO9141-2 and keyword 2000485A/L Line of ISO9141-2 and keyword 2000

·         LED 11 - Clock

·         LED 16 Batt+ (Voltage supply)



Wednesday, November 13, 2019

Finding stereo amp problems with a PicoScope

Having 16-bits to play with helps find faults, distortion errors, and other problems with audio amplifiers.  Pico's 2-channel PS4262 is the economical tool of choice for this task.  See this helpful video: 




 https://www.youtube.com/watch?v=toCTX6tOBv4

Thursday, November 7, 2019

What is V-I Signature Testing?


What is V-I Signature Testing? Powerful Solutions in PCB Repair and Test Technologies; SYSTEM 8 Advanced Matrix Scanner (AMS) V-I signature testing is an established and reliable technique for component fault finding on both analog and digital boards. An AC voltage is applied to a test point (via a current limiting resistor) and the resulting current is measured. The results are plotted on a voltage/current graph which displays the signature of the test point. 

Analysis of a V-I signature, usually by comparison with a reference, can lead to finding faults such as: -Leaky components -Internally damaged components -Incorrect value components -Inconsistent components -Short and open circuits Increased fault coverage with frequency sweep The Advanced Matrix Scanner (AMS) module increases the fault coverage by varying the frequency of the AC voltage at which the V-I signature is acquired. The resulting curve is plotted in three dimensions which allows the variations of the V-I signatures to be observed over a frequency range. This can lead to finding faults that are not visible with a standard V-I analysis.  


http://www.saelig.com/abi-system-8/TSTEQPCB004.htm

Wednesday, November 6, 2019

Pre-compliance basics video by Rigol


- shows how RIGOL RF Spectrum Analyzers can help with conducted, radiated and immunity testing before it's too late! Testing products before they reach the formal test house is essential!




http://www.saelig.com/category/MFR0006805.htm https

Tuesday, November 5, 2019

New Teledyne LeCroy 12-bit 4-Ch Oscilloscope Series announced today!

WaveSurfer 4000HD with bandwidths 200MHz - 1GHz. Huge 12.1" touchscreen display: http://www.saelig.com/pr/wavesurfer-4000hd.html

The fast Windows CE-based WaveSurfer 4000HD systems with solid-state drives make the world’s highest definition oscilloscopes even more economical, powerful and productive with an efficient and intuitive user interface. 

Fairport, NY, USA:  Saelig Co. Inc. has introduced the Teledyne LeCroy WaveSurfer 4000HD range of high performance 4-channel digital oscilloscopes, with 12-bit vertical resolution based on Teledyne LeCroy’s HD4096 high definition technology.  Four models are available with bandwidths from 200MHz up to 1GHz.  This compact form-factor instrument features a large 12.1” multi-touch display for fast setup and operation.   With a screen refresh rate of 175,000 wfm/sec, the WaveSurfer 4000HD samples at  5GSa/s for two-channel operation and 2.5GSa/s when sampling all four channels. With 12.5Mpts/ch (4-ch) and 25Mpts (2-ch) this makes it possible to maintain a high sampling rate over a long period of time, providing a better tool for finding rogue waveforms. 
Teledyne LeCroy WaveSurfer 4000HD high definition 12-bit oscilloscopes with HD4096 technology have higher resolution than conventional 8-bit oscilloscopes (4096 vs. 256 vertical levels). 12-bit ADCs with high sample rates, combined with high signal-to-noise amplifiers, and a low noise system architecture to 1GHz enables the capture and display of signals with 16 times more resolution than other oscilloscopes. Waveforms captured and displayed are cleaner and crisper. Signal details that are often lost in the noise on other oscilloscopes are clearly visible and easy to distinguish with HD4096-based oscilloscopes. Additionally, the 4000HD’s 16-bit offset DAC permits ±10 V offset at 20 mV/div, ±4 V at 5 mV/div, and an amazing ±1.6 V offset at the highest sensitivity (1 mV/div). Such large applied offsets, combined with 12-bit resolution, makes it easy to acquire and view small signal variations (e.g. ripple, noise, transient interference) on DC or sensor signals. This also provides extended offset ranges for many of Teledyne LeCroy’s high voltage probes.

The Teledyne LeCroy WaveSurfer 4000HD series are available now from their authorized North American distributor Saelig Company, Inc. Fairport, NY. 

http://www.saelig.com/category/wavesurfer-4000hd.htm