Document Type

Thesis - Open Access

Award Date


Degree Name

Master of Science (MS)

Department / School

Electrical Engineering


This manuscript includes the specification, design, operation and results of an implantable temperature sensing transmitter and a pulse frequency to voltage converter with a digital temperature readout. The research project also includes Frequency Modulated (FM) receiver to complete the temperature measuring telemetry system. What are telemetry and biotelemetry? According to the Modern Dictionary of Electronics, telemetry is "the science of sensing and monitoring of information at some remote location and transmitting the data to a convenient location to be read or recorded". Biotelemetry is "the technique of measuring or monitoring vital processes and transmitting data without wire to a point remote from the subject". Biotelemetry is also the formal name for radio tracking of wildlife. Biotransmitters are the transmitters used to measure, monitor and transmit vital or physiological processes such as electrocardiogram, electroencephalogram and body temperatures. Some biotransmitters are capable of transmitting all three of the above vital processes simultaneously but they are bulky, unreliable, and inaccurate. Therefore, at the present state of the art, it is desirable to design biotransmitters to measure one specific physiological parameter. Why use biotelemetry? Biotelemetry involving wildlife has helped scientists to gain knowledge and thereby save some endangered species, slow the spread of animal disease and plan better food-and-cover areas for wildlife. Wildlife telemetry is getting so sophisticated that experts can detect the erratic flight of a sick bird. In Montana scientists have learned to recognize the spasms of a "bugged" blue grouse suddenly poisoned by insecticides.

Library of Congress Subject Headings


Telemeter (Physiological apparatus)

Body temperature -- Measurement

South Dakota State University Theses



Number of Pages



South Dakota State University