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Digital computing cardiotachometerA tachometer is described which instantaneously measures heart rate. During the two intervals between three succeeding heart beats, the electronic system: (1) measures the interval by counting cycles from a fixed frequency source occurring between the two beats; and (2) computes heat rate during the interval between the next two beats by counting the number of times that the interval count must be counted to zero in order to equal a total count of sixty times (to convert to beats per minute) the frequency of the fixed frequency source.
Document ID
19740004665
Acquisition Source
Legacy CDMS
Document Type
Other - Patent
Authors
Smith, H. E. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Rasquin, J. R. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Taylor, R. A. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Date Acquired
September 3, 2013
Publication Date
November 20, 1973
Subject Category
General
Accession Number
74N12778
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
US-PATENT-3,773,038|NASA-CASE-MFS-20284-1
Patent Application
US-PATENT-APPL-SN-242027

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