Patent ID: 8042377

Claim:
A transducer test system comprising: a manual shaker for supporting a test transducer and a reference transducer while the test transducer and reference transducer are shaken by a user, thereby subjecting the test transducer and the reference transducer to frequencies generated by manual shaking such that the frequencies correspond with a manual shaking frequency of the user; and a signal conditioner unit for receiving both a reference output signal from the reference transducer and a test output signal from the test transducer, such that the reference output signal and the test output signal are representative of data from substantially the same point in time, the signal conditioner comprising: a signal comparer for comparing the test output signal to the reference output signal, thereby generating an error signal representative of a difference between the test output signal and the reference output signal, the difference being a comparison of the test output signal and the reference output signal at substantially the same point in time; a discriminator for receiving the error signal and for determining whether the error signal exceeds a predetermined threshold; and a display for providing a visual indication as to whether the error signal exceeds the predetermined threshold, wherein the signal conditioner unit receives the reference output signal and the test output signal while the manual shaker is manually shaken, and wherein the display of the signal conditioner includes an out-of-range indicator for indicating to the user whether the user is shaking the manual shaker improperly.