Tuesday, November 13, 2018

Designing the world's highest performance 1kV isolated oscilloscope

In this video Bart Schroder from CleverScope talks to EEVblog's Dave Jones about the challenges in designing the world's highest performance 1kV isolated oscilloscope.



Friday, November 9, 2018

Torque Transducers on test rig help test advanced electric and hybrid powertrains

Sensor Technology torque sensors on powertrain test rigs ... http://snip.ly/pxtfx3

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.


Thursday, November 8, 2018

Tunable, very stable LED Light Source OptiLIGHT 127 CLC - pick any color!  https://youtu.be/eoQHRzJa2_8

GL Optic has created a patent-pending product with ability to control the properties of its LEDs using a complex multilevel calibration procedure that characterizes each single LED light source, storing the spectral properties in the unit's electronic controls. The GL OPTI LIGHT LED 127 CLC (closed-loop analog feedback control) can be used as a reference luminance standard for display and monitor calibration systems as well as a reference for calibrating cameras and other optical instruments. The system combines a set of LEDs with an integrating sphere providing ideal light source homogeneity. It features a stable electronic feedback control system that produces light without any flicker associated with other light sources, which, together with built-in thermal stabilization, achieves remarkable color stabilization.

The GL OPTI LIGHT LED 127 CLC can be controlled by a PC via USB connection to create almost any color source. Alternatively, the settings can be set with the LED control panel. The available “Adjust” software is a recommended option which allows light coordinates to be preset according to the user's needs. Several light source standards are also featured, including D50, D65, D75, A, and TL84.
The active multilevel calibration system is divided into the basic factory calibration and permanent on-line calibration during operation without using an external metrological device. The GL OPTI LIGHT LED 127 CLC effectively self-controls its operating conditions and adjusts the light result with reproducible stability.
The LED technology used in GL OPTI LIGHT LED 127 CLC not only exceeds conventional LED sources in light quality, but is now for the first time able to replicate a tremendous color space with the highest quality.  http://www.saelig.com/MFR00137/M00137002.htm

Wednesday, November 7, 2018

Saelig Introduces RMS-06x0 For Radiated Power Measurements Without An Anechoic Chamber

Saelig Company, Inc. has introduced the portable, compact MegiQ RMS-0640/0660 Radiation Measurement Systems, turnkey systems that can measure antenna and equipment radiation patterns and Total Radiated Power (TRP) of an RF device from 600MHz to 4/6GHz.  The RMS-06x0 system consists of a measurement antenna, a measurement receiver with optional signal generator, a motorized turntable, and application software for system control and calculations.  This system removes the need for an expensive anechoic chamber for most applications.  Moderate lab space is all that is needed in order to obtain accurate 3-axis radiation patterns and TRP calculations.  Extensive testing and comparison with anechoic test lab measurements has shown that the measurement accuracy of the RMS-06x0 approximates very well to anechoic measurements.RMS-0740 Radiation Pattern
The application software provided makes the measurement procedure straightforward.  It provides for storage and reporting of the experimental results, which can be presented in Field Strength, ERP and antenna gain. Total Radiated Power and other statistics are calculated from 3-axis rotations. Total Isotropic Sensitivity (TIS) of a wireless device can also be calculated to comply with certain classes of device.
Two turntables are available for the RMS-06x0 package, a light-weight turntable for small products and a heavy duty table for larger devices. The measurement unit has a dual channel receiver that allows measuring two polarizations in one rotation, allowing a 3-axis measurement to be taken in less than 2 minutes.
Devices under test can be measured standalone in constant carrier mode, while a separate generator output is available that allows for full characterization and frequency sweep of custom antennas and prototypes.
One of the most important properties of a wireless device is how much it actually radiates, or the efficiency of an antenna. This is typically measured in an anechoic chamber at an expensive test lab.  Another  time-consuming and somewhat inaccurate method is by moving around the product in an open field.  Many wireless developers don’t have the large budget for a conventional radiation test setup, or the time to perform open range testing. The RMS-06x0 gives a true and rapid insight into a product’s RF performance for a fractional cost of alternative methods. 
Made in The Netherlands by MegiQ, a developer of low cost RF test and measurement tools, the RMS-06x0 Radiation Measurement System is 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: info@saelig.com, or visit http://www.saelig.com/category/megiq-rms.htm

Tuesday, October 30, 2018

Saelig Introduces Economical Siglent SSG3000X 2.1GHz/3.2GHz RF Signal Generators

 Touch, PC, or web control makes these versatile RF signal sources a valuable addition to an engineer’s test bench  SSG3000X

Fairport, NY, USA:  Saelig Company, Inc. has introduced the Siglent SSG3000X RF Signal Generators, which have a frequency range of 9kHz to 2.1GHz or 3.2GHz. They provide all of the common signal generation needs such as sweep control and analog modulations (AM, FM, PM) as well as pulse modulation and pulse train generation (option). Additionally, the IQE models can be used with a baseband generator such as the Siglent SDG6000X to generate IQ modulated signals.  With a 0.01Hz frequency setting resolution, the signal output can be adjusted from -110dBm to +13dBm with phase noise as low as -110dBc/Hz @ 1GHz.
The SSG3000X generators support input control from a 5 inch TFT capacitive touch screen, or mouse and keyboard.  External control may be from USB or LAN (VXI-11, Socket, Telnet) connection or optional GPIB.  Web browser remote control on a PC or mobile terminal is also supported.
With high accuracy and pure output signals, the SSG3000X series is an excellent choice for R&D, education, and manufacturing needs.
SSG3000X RF Signal Generators are made by Siglent Technologies, since 2002 one of the leading high quality test equipment manufacturers, with a growing worldwide reputation. 


Friday, October 26, 2018

Perform cost-effective antenna radiation measurements

Perform cost-effective antenna radiation measurements by reading this EDN article!