Accession Number : AD0676142

Title :   HIGH-IMPEDANCE ELECTROCARDIOGRAM AMPLIFIER-TRANSMITTER FOR USE WITH DRY ELECTRODES.

Descriptive Note : Rept. for May 65-Apr 67,

Corporate Author : SCHOOL OF AEROSPACE MEDICINE BROOKS AFB TEX

Personal Author(s) : Johnson,Jack B. ; Allred,James E.

Report Date : JUN 1968

Pagination or Media Count : 13

Abstract : An electrocardiogram amplifier-transmitter was designed for use with dry electrodes for long-term heart rate monitoring on unrestrained subjects in orbiting laboratories. Extremely high input impedance compatible with dry electrodes and low power consumption was achieved by use of field-effect semiconductors in the amplifier input and in the transmitter. This device is being used on an experimental basis in space environmental laboratories. (Author)

Descriptors :   (*ELECTROCARDIOGRAPHY, TELEMETERING TRANSMITTERS), (*TELEMETERING TRANSMITTERS, *FIELD EFFECT TRANSISTORS), MONITORS, ELECTRODES, ELECTRICAL IMPEDANCE, TRANSISTOR AMPLIFIERS, PULSE RATE

Subject Categories : Biomedical Instrumentation and Bioengineering
      Telemetry

Distribution Statement : APPROVED FOR PUBLIC RELEASE