Taking a Gas Turbine out for a Spin
July 16, 2015 === === Tests of gas turbine engines and other rotating machines often occur under extreme conditions: high rotational rates, pressure, and temperature. Advanced signal conditioning techniques ensure accurate measurements, eliminating electrostatic noise and compensating for resistance and temperature variations. This whitepaper examines the advantages of balanced constant current excitation—using a pair of matched current sources to excite a transducer and a differential amplifier to measure gage voltage—for dynamic strain measurements.

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