Category: Test/Measurements
Low cost high accuracy STM32 FFT LCR meter
Adil Malik made a low cost FFT LCR meter with an STM32 MCU: The approach I took was a mixed signal one where a capable analog front end would be paired up with a beefy DSP processor to compute the Impedance. Most importantly, in this scheme, the DSP is responsible for discriminating...
Continue ReadingFree Elektor Article: Voltage Tracker for Oscilloscope
Original publication: Elektor magazine November 2016 Author: Kurt Schuster Free download expires: Friday 23 August, 2019. Suppose you want to measure a slowly-varying voltage from a sensor, or perhaps plot the discharge curve of a battery. Is it really necessary to sit there and note...
Continue ReadingFree Elektor Article: Improved Radiation Meter
Author: Burkhard Kainka All that’s required to measure radiation is a simple PIN photodiode and a suitable preamplifier circuit. We present here an optimised preamplifier and a microcontroller-based counter. The microcontroller takes care of measuring time and pulse rate, displaying...
Continue ReadingPC based Spectrometer using AS7265X spectrum sensors
Our friends on open-electronics.org published a new project based on AS7265X spectrum sensors family. by Boris Landoni After this introduction we enter into the merits of the project, which consists in developing a PC spectrometer obtained by connecting to the USB port (which is now a...
Continue ReadingDigital Caliper Computer Interface
Digital Caliper Computer Interface can be used to log data on a spreadsheet. Report by Jeremy S. Cook @ blog.hackster.io With a few pointers found here, he found that this data is transmitted in a continuous stream in 24 bits at 1.5 volts. He therefore level-shifted the 1.5V output to...
Continue ReadingPicoScope 4 Channel 5GHz Sampler-Extended Real Time Oscilloscope
The PicoScope 9404-05 oscilloscope brings very high speed performance at less than half the cost of traditional benchtop solutions. Saelig Company, Inc. has introduced the PicoScope 9404-05 5GHz oscilloscope - a unique PC-based high-resolution device which brings affordable high-speed...
Continue ReadingTohoku University Reveals Swallowable Thermometer at SemiCon Japan
A lot of people know that temperature is the degree of heat present in a substance. The common way of measuring body temperature is the armpit method where temperature is measured by putting the thermometer under the armpit. However, there are better ways of measuring this temperature....
Continue ReadingPSLab is an Open Source Platform For STEM Education
I remember many years ago, when I was trying to acquire data with hardware especially with "Data Acquisition" devices, I was gifted a device that I must say reshaped my life - It was the NI myDAQ. The NI myDAQ was a product from National Instrument, and it allowed students to perform...
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