Abstract: To achieve noncontact dynamic torque measure, the RF technology is applied to transmit dynamic torque
signals in the dynamic torque measure system. Dynamic torque signals are converted into voltage signals based on the
principle of resistance strain. Then they are amplified and converted into digital signals. Finally, RF chip transmit digital
signals to RF receiver circuit for follow-up treatment. The design of scheme, circuit and mechanical structure of the
system is described in detail. Compared with the traditional system whose signals are transmitted by slip ring, the RF
transmission system has higher accuracy, longer service life and better prospect.
Key Words: Dynamic torque, RF, Noncontact measure
Abstract: To achieve noncontact dynamic torque measure, the RF technology is applied to transmit dynamic torquesignals in the dynamic torque measure system. Dynamic torque signals are converted into voltage signals based on theprinciple of resistance strain. Then they are amplified and converted into digital signals. Finally, RF chip transmit digitalsignals to RF receiver circuit for follow-up treatment. The design of scheme, circuit and mechanical structure of thesystem is described in detail. Compared with the traditional system whose signals are transmitted by slip ring, the RFtransmission system has higher accuracy, longer service life and better prospect.Key Words: Dynamic torque, RF, Noncontact measure
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