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Syscomp Electronic Design Ltd.
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Open source USB Lab Instruments
Open source USB Lab Instruments

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The physics department at the University of Birmingham has a neat second year lab exercise that uses a Syscomp Oscilloscope to perform the Franck-Hertz experiment.  The Franck-Hertz experiment uses electrical measurements to show the quantum nature of atoms.  More information on the original experiment: 

http://en.wikipedia.org/wiki/Franck%E2%80%93Hertz_experiment"

The University of Birmingham lab exercise can be downloaded here:

http://http//www.cm.ph.bham.ac.uk/y2lab/franckhertz/franckhertz.pdf
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2014-09-07
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These days, many amateur astronomers use a GOTO telescope mount - a mount that uses GPS to determine the location, and a computer to aim the telescope. The telescope mount is usually powered by a lead-acid battery.Our new application note was originally written for these astronomers, but it will be of interest to anyone using a lead-acid battery.

The application note shows methods of charging and discharging the battery that prolongs its life. We also show how to measure battery capacity using the Syscomp DVM-101 recording multimeter. And we include design and construction information for an expanded scale voltmeter that can be used as a a 'gas gauge' for a lead acid battery.

http://www.syscompdesign.com/assets/Images/AppNotes/bat-brownout.pdf
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The oscillograph in the pictures was spotted at the Hoover Dam in Nevada. (It's an oscillograph rather than oscilloscope because it creates a permanent record.) The device was used to monitor hydro-electric power lines for transients and faults, recording with a bandwidth in excess of 60Hz. The instrument dates from 1938, long before there were electronic methods of recording waveform data. The records are generated by a galvanometer-deflected light beam recording on photographic paper - up to 200 feed of it per reel.

The instrument could apparently respond to a transient in under 4 milliseconds, which is pretty amazing for such an electromechanical beast. To view a waveform, the reel would be taken in its container, opened in a darkroom, and the film developed with chemicals. 

All of this could now be accomplished with much greater convenience and substantially less money by a microcontroller and some non-volatile memory. 

Photographic credit: Jessica Hiscocks
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2014-06-03
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The Wavemaker software tool by John Foster allows one to convert the image of some waveform into the arbitrary waveform file format for a Syscomp signal generator. A new application note providing a quick start guide to using Wavemaker has been added to the Resources section of our website.
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At the request of one of our fine customers, version 1.19 of the CGR-101 software now features narrow band frequency sweeps in the vector network analyser. An application note has been added which describes narrow band analysis of two terminal devices, such as ceramic resonators, and four terminal devices, such as transformers with tuned secondaries.
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We have just released the CircuitGear Mini (CGM-101). Like the original CircuitGear CGR-101, the CircuitGear Mini CGM-101 is a dual-channel oscilloscope, arbitrary waveform generator, digital I/O, vector-network analyser (bode plotter), and a spectrum analyser - all in one low-cost package.
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We have launched our new website!  Check us out at www.syscompdesign.com. The new site features reorganized content, a new shopping cart system, and our new blog!
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