Miniature long-life temperature telemetry system.

Abstract
A miniature telemetry system including transmitter and sensor suitable for implanting in small animals to measure their deep body temperature has been designed. A compensating bridge circuit is used to achieve a stable and accurate measurement system. The high performance, coupled with the small size and long battery life, makes the device valuable for long-term observation of an animal''s temperature rhythms. The device has a self-contained miniature battery that provides approximately 3,600 hr operation.

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