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    Heart-Rate and Breath-Rate Monitor (1983)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: Circuit requiring only four integrated circuits (IC's) measures both heart rate and breath rate. Phase-locked loops lock on heart-rate and respiration-rate input signals. Each loop IC contains two phase comparators. Positive-edge-triggered circuit used in making monitors insensitive to dutycycle variations.
    Keywords: LIFE SCIENCES
    Type: MSC-20078 , NASA Tech Briefs (ISSN 0145-319X); 7; 3; P. 289
    Format: text
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
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