BPW34 Gamma Ray Detector
Test/Measurements

BPW34 Gamma Ray Detector

The usual approach to radiation detection is the use of a Geiger-Müller tube and its high voltage circuit requirements, but during a quick surf through the internet today, I came across this portable and "accurate looking" solution developed by Stefan Wagner, on EasyEDA. Rather than...

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DIY voltage and current reference
Test/Measurements

DIY voltage and current reference

Petteri Aimonen designed and built his own voltage and current reference: When developing a data acquisition system, I ran into a need of having fairly accurate current reference to compare against, 0.1% accuracy or better. This is not a particularly high standard, but unable to find a...

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Free Elektor Article: Current Transformer for Oscilloscopes
Test/Measurements

Free Elektor Article: Current Transformer for Oscilloscopes

Commercial current clamp devices certainly are able to measure current by potential-free means but they are not suitable for capturing rapid alterations in current over time. In addition, many low-cost examples of these do not provide an output for connecting to an oscilloscope. Here...

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Arrow Electronics introduces low-cost, rapid prototyping data acquisition platforms
Test/Measurements

Arrow Electronics introduces low-cost, rapid prototyping data acquisition platforms

Low-power, low-noise Analog Devices ICs and Intel MAX 10 FPGA in compact 86.5mm x 25mm outline Analog Devices and Arrow Electronics have worked with Trenz Electronic GmbH to produce three ready-to-use data-acquisition platforms that relieve the design and electronics manufacturing...

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Free Elektor Circuit – Acoustic IR Remote Control Tester
Test/Measurements

Free Elektor Circuit – Acoustic IR Remote Control Tester

In this circuit we use the output signal from a standard IR receiver (IC1 in the schematic of Figure 1) to drive a miniature loudspeaker. The IR receiver from Vishay used here is available for various frequencies ranging from 30 to 56 kHz. A large number of IR remote controls operate...

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Keithley SMUs emulate classic curve tracers with new software
Test/Measurements

Keithley SMUs emulate classic curve tracers with new software

Tektronix brings many of the key features loved in classic curve tracers to Keithley SourceMeter source measure units (SMUs) with the release of its Keithley I-V Tracer software. Tektronix introduced the industry’s first curve tracer in 1955 to display characteristic curves for vacuum...

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Homemade Injection Transformer for PSU Loop Analysis
Test/Measurements

Homemade Injection Transformer for PSU Loop Analysis

Adil Malik build his own injection transformer to test switchmode power supplies in his lab. He writes: Recently, I have been designing some SMPS and required some hardware to measure the actual loop response of the complete converters. People familiar with this area will probably know...

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8 GHz Sampling Oscilloscope for experiments
Test/Measurements

8 GHz Sampling Oscilloscope for experiments

A basic open-source multi-GHz sampling oscilloscope for experimenters on a budget. Still a work-in-progress, with key pieces on separate PCBs, but showing bandwidths in the 7-8 GHz range with >= 100 GSa/s equivalent-time sampling, and around 500 k comparisons/second real time. by Ted...

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