Importance

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Abstract

A transducer testing system for low frequency vibrations incorporates an electric motor/gearbox assembly 16 with an output shaft 18 and mechanical means for converting low frequency shaft rotation of the output shaft 18 to uniform low frequency sinusoidal excitation of an accelerometer 10. Simultaneously, a data processing unit 14 measures the response of the accelerometer 10 to the uniform low frequency excitation within predetermined frequency ranges. The data processing unit 14 then compares the measured response with predetermined accelerometer response limits to ascertain whether the accelerometer 10 is functional. The transducer testing system overcomes the limitations of electrodynamic testers to provide a means for accurately testing the low frequency response of the accelerometer 10.

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First Claim