Computerized body temperature telemetry in small animals: use of simple equipment and advanced noise suppression.
Telemetric measurement of body temperatures in small animals implanted with commercially available transmitters (Mini-Mitter) has been automated using the Commodore C-64 microcomputer. Transmitter output frequencies are received by common AM-radios, converted to TTL level by a simple interface and measured by a machine language subroutine. Multiplexed input is under software control and allows for the recording of at least 16 animals selectively, with data points for each sample every 3 min. The effects of environmental electrical noise are significantly reduced by an error detection system based on the separate reception of interference.
Ruf
T
T
Department of Biology, Philipps-University, Marburg, Federal Republic of Germany.
Heldmaier
G
G
D000818:Animals; D001831:Body Temperature; D006224:Cricetinae; D004867:Equipment Design; D008838:Microcomputers; D008991:Monitoring, Physiologic / Q000295:instrumentation / Q000662:veterinary*; D019736:Prostheses and Implants / Q000662:veterinary; D012984:Software; D013686:Telemetry / Q000295:instrumentation*