GC_ET_UT_Circuits.html
2021-01-15 10:28:47
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***** Some Circuits
***** From the author's University of Tennessee career,
***** while associated with the Rehabilitation Engineering Program .
***** These were Designed - Fabricated - Tested - Used in Research
***** all by the author during 1976 - 1996.
***** Note: This was long before the days of
***** micro-computers , internet, graphical SPICE,
....
***** This was way back
***** when we had to do hand-calculations with a TI-59
***** and build-up circuits on ProtoBoards
***** and hard-wire circuits with wire-wrap
***** test/use by plugging into
***** an Apple-II microcomputer
***** an Altair 8000
*****
Short List:
1) Log_Delta_Ohm_Meter, UT/STIM
2) Bipolar Active Diode, UT/STIM
3) Root-Mean-Square-Amp,
UT/STIM Jun82
4) No-Touch Computer_Kybrd Interface, UT/REHAB Jun81, patented
and assigned to Prentke-Romich.
5) Calculator_to_Computer_Keyboard_
Interface, UT/REHAB Jun80
******* Nwobi Muscle Activity Project required Eight Insrumentation Amps ,
******* as part of the Radio Frequency Noise Control method.
******* Ferrite Bead chokes were used on ALL leads in/out of the Device Metal Box.
******* All instruments were enclosed in an 8ft x 8ft x 7ft Faraday Room
******* which was built from expanded mesh steel screen.
******* Doors front and back with lapping contacts.
******* Input-Shield + Circuit-Ground was hard driven to control RF noise.
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