Accession Number:

AD0266338

Title:

A MULTICHANNEL PERSONAL TELEMETRY SYSTEM USING PULSE POSITION MODULATION

Descriptive Note:

Corporate Author:

AEROSPACE MEDICAL RESEARCH LABS WRIGHT-PATTERSON AFB OHIO

Report Date:

1961-07-01

Pagination or Media Count:

1.0

Abstract:

A personal t le e ry system using the pulse position modulation technique was developed. The laboratory model transmi s heart rate, respiration rate, and body te per ure wit i a range of 100 feet. Compared with FM - FM Systems this system has the adv n age of very low power consumption 20 milliwatts, light weight 6 ounces with batteries for 80 hours continuous operation, small size 4-34 by 3-12 by 1 inc es, and sufficient accuracy and stability 2 percent baseline stability for physiological measurements. An inexpensive, small, singletrack tape recorder may be used for recording and an extremely simple and inexpensive playback system can be used for scope display. Although more complex equipment is required for the playb ck y tem to standard penwriters, this penwriter decoding unit is not any more complicated than standard FM discriminators. Simple, reliable, switching-type circuits which work over a wide temperature range are used, and there is no proble with cross alk be een channels. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE