A CARDIOTACHOMETER WITH LINEAR INDICATION OF BEAT-TO-BEAT FREQUENCY

A CARDIOTACHOMETER WITH LINEAR INDICATION OF BEAT-TO-BEAT FREQUENCY

ABSTRACT The instrument described has a linear indication of beat‐to‐beat heart rate with an overall accuracy of ±1 beat per minute. A linear output response over the range of 30 to 270 beats per minute is achieved with a square law discharge network. Input clipping and filter circuits permit reliab...

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Veröffentlicht in:Psychophysiology 1968-04, Vol.4 (4), p.486-492
Hauptverfasser: Pope, Jack M., Deboo, Gordon J., Smith, David B. D.
Format: Artikel
Sprache:eng
Schlagworte:
Cardiotachometer
Frequency measurement
Heart Rate
Humans
Psychophysiology - instrumentation
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Zusammenfassung:ABSTRACT The instrument described has a linear indication of beat‐to‐beat heart rate with an overall accuracy of ±1 beat per minute. A linear output response over the range of 30 to 270 beats per minute is achieved with a square law discharge network. Input clipping and filter circuits permit reliable operation with moderately active subjects. Details of the circuit design and its performance are discussed.
ISSN:0048-5772
1469-8986
DOI:10.1111/j.1469-8986.1968.tb02790.x