Electronic circuit for a transducer

Details Electronic circuit for a transducer Electronic circuit for a transducer

G - Physics

01

D

G01D 7/00 (2006.01) G01D 18/00 (2006.01) G01K 7/20 (2006.01) G01L 1/22 (2006.01) G01L 9/00 (2006.01)

Patent

CA 2145698

A transducer for generating an amplified signal in response to a stimulus. The transducer includes a sensing structure for sensing a stimulus and for generating a signal functionally related to the stimulus. An amplifier circuit, utilizing a single amplifier, amplifies the signal by a predetermined gain. Resistive elements in the amplified circuit are formed on the same substrate as the sensing structure and define the predetermined gain of the amplifier circuit. The transducer generates a signal having zero magnitude in response to zero pressure on the sensing structure and has fewer than seven resistors requiring laser trimming.

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