Equipment was designed and constructed to monitor automatically and unobtrusively up to twelve physiological variables on a human subject engaged in a prolonged field exercise.
Inputs from transducers are sampled in turn, and are encoded into 7-digit PCM. They are then recorded on a small tape-recorder worn by the subject. All equipment is battery-operated, but the recorder and digital circuitry is energized for only 1/2 second every 30 seconds. This, permits recording for over 24 hours without interruptions for a change of battery or tape cassette.
A decoder and de-commutator were built so that the tapes can be played back later in the laboratory. Selected parameters can be viewed on an oscilloscope or plotted on a chart-recorder. Overall accuracy of the system is 1%.
Two types of transducers have been developed: one measures the heart rate and the other the skin temperature. Other transducers remain to be developed.
Component circuits were tested at varying environmental temperatures, and a prototype of the whole system was tested on an arctic exercise. / Applied Science, Faculty of / Electrical and Computer Engineering, Department of / Graduate
| Identifer | oai:union.ndltd.org:UBC/oai:circle.library.ubc.ca:2429/36076 |
| Date | January 1968 |
| Creators | Deczky, Andrew G. |
| Publisher | University of British Columbia |
| Source Sets | University of British Columbia |
| Language | English |
| Detected Language | English |
| Type | Text, Thesis/Dissertation |
| Rights | For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use. |
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