| タイトル | Heart rate, multiple body temperature, long-range and long-life telemetry system for free-ranging animals |
| 著者（英） | Fryer, T. B.; Lund, G. F.; Westbrook, R. M. |
| 著者所属（英） | NASA Ames Research Center |
| 発行日 | 1980-01-01 |
| 言語 | eng |
| 内容記述 | The design details and rationale for a versatile, long-range, long-life telemetry data acquisition system for heart rates and body temperatures at multiple locations from free-ranging animals are presented. The design comprises an implantable transmitter for short to medium range transmission, a receiver retransmitter collar to be worn for long-range transmission, and a signal conditioner interface circuit to assist in signal discrimination and demodulation of receiver or tape-recorded audio outputs. Implanted electrodes are used to obtain an ECG, from which R-wave characteristics are selected to trigger a short RF pulse. Pulses carrying heart rate information are interrupted periodically by a series of pulse interval modulated RF pulses conveying temperature information sensed at desired locations by thermistors. Pulse duration and pulse sequencing are used to discriminate between heart rate and temperature pulses as well as radio frequency interference. The implanted transmitter may be used alone for medium and short-range tracking, or with a receiver-transmitter collar that employs commercial tracking equipment for transmissions of up to 12 km. A system prototype has been tested on a dog. |
| NASA分類 | LIFE SCIENCES (GENERAL) |
| レポートNO | 81A34050 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/416707 |
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