ENVIRONMENTAL PROTECTION RESEARCH BY MEANS OF RADIO TELEMETRY. II. MEASUREMENT OF PULSE RATE FROM ACTIVE TEST SUBJECTS

Abstract

Three instruments: (1) a wire telemeter used in climatic chamber studies, (2) a portable unit which delivers an audio signal suitable for either earphone monitoring or recording on magnetic tape, and (3) a radio cardiotachometer used in field studies, are described for the measurement of pulse rates from active human test subjects. A noise-free, non-ambiguous record of pulse beats during strenuous exercise is obtained from a simple photoelectric transducer which senses light intensity fluctuations on the surface of transluminated vascular areas without pre-exercise instrumentation or training of test subjects. Photographs, circuit diagrams, and drawings of the component parts of the instruments are given. Sample data are presented which show the pulse wave shape and typical transient response curves of pulse rate for various activities.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1961
Accession Number
AD0267760

Entities

People

  • Francis W. Botsch
  • James J. Powers
  • Michael J. Sacco

Organizations

  • United States Army Soldier Systems Center

Tags

Communities of Interest

  • Advanced Electronics
  • Biomedical
  • Ground and Sea Platforms
  • Human Systems
  • Sensors
  • Weapons Technologies

DTIC Thesaurus Topics

  • Amplifiers
  • Audio Frequency
  • Engineering
  • Environmental Protection
  • Frequency
  • Heart Rate
  • Intensity
  • Magnetic Tape
  • Measurement
  • Military Research
  • Oscillators
  • Radio Equipment
  • Radio Telemetry
  • Recording Systems
  • Telemetry
  • Telemetry Equipment
  • Transmitters

Fields of Study

  • Physics

Readers

  • Aerospace Test and Evaluation
  • Computer Science/Computer Engineering/Data Science/Digital Signal Processing.
  • Optical Fiber Sensing and Electromagnetic Propagation.