Date of Defense
Electrical and Computer Engineering
Dr. John Gesink
The Telemetric Torque Measurement System(TTMS) was designed to measure the torque produced by a snowmobile engine. The design of the TTMS was refined and modified in stages, leading to the final design. The TTMS consists of two basic sections: the transmitter section and the frequency demodulator section. The transmitter section effectively measures the torque on a snowmobilejack-shaft. The torque signal is converted into a voltage which is then fed into a voltage to frequency converter and converted into an audio tone. This tone is broadcast in the FM broadcast band via an FM transmitter. An FM receiver then receives the audio tone. The frequency demodulator section receives the encoded signal from the FM receiver through a headphone jack and converts the signal into a voltage that is proportional to torque applied to the snowmobile jack-shaft.
Several tests were completed to verify the operation of the TTMS and its ability to meet the design specifications. Some specifications were not verified because of lack of test equipment. The TTMS project was tested and calibrated using known torque values. The test results showed that the TTMS is capable of producing a linear output voltage that is proportional to torque. The TTMS is capable of running for at least 3 hours on one set of batteries, and is capable of spinning at a speed of at least 2000 RPM. The dimensions of the TTMS meet specifications, and the range of transmission is at least 10 feet. Some minor changes to the TTMS design were made consisting of only component value changes. Overall, the TTMS project was successful.
Joseph, Jason; Sinta, Francisco; and Williams, Jeff, "Telemetric Torque Measurement System" (1997). Honors Theses. 1471.
Honors Thesis-Open Access