A portable physiological recording system
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-recor...
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1968
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ftdatacite:10.14288/1.0103252 2023-05-15T15:04:26+02:00 A portable physiological recording system Deczky, Andrew G. 1968 https://dx.doi.org/10.14288/1.0103252 https://doi.library.ubc.ca/10.14288/1.0103252 en eng University of British Columbia article-journal Text ScholarlyArticle 1968 ftdatacite https://doi.org/10.14288/1.0103252 2021-11-05T12:55:41Z 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. Text Arctic DataCite Metadata Store (German National Library of Science and Technology) Arctic |
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DataCite Metadata Store (German National Library of Science and Technology) |
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ftdatacite |
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English |
description |
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. |
format |
Text |
author |
Deczky, Andrew G. |
spellingShingle |
Deczky, Andrew G. A portable physiological recording system |
author_facet |
Deczky, Andrew G. |
author_sort |
Deczky, Andrew G. |
title |
A portable physiological recording system |
title_short |
A portable physiological recording system |
title_full |
A portable physiological recording system |
title_fullStr |
A portable physiological recording system |
title_full_unstemmed |
A portable physiological recording system |
title_sort |
portable physiological recording system |
publisher |
University of British Columbia |
publishDate |
1968 |
url |
https://dx.doi.org/10.14288/1.0103252 https://doi.library.ubc.ca/10.14288/1.0103252 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_doi |
https://doi.org/10.14288/1.0103252 |
_version_ |
1766336204901449728 |