Circuitry for measuring piezoelectric signals
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United States of America Patent
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Apr 17, 2001
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N/A
app pub date -
May 4, 1999
filing date -
May 19, 1998
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Abstract
A circuitry for measuring piezoelectric signals for a piezotransducer/charge amplifier combination with a range capacitor including a voltage divider with a switch element providing a feedback signal to the measuring input of a charge amplifier. The switching element is controlled by a pulse generator for zeroing. The range capacitors charge to a certain class and voltage at the commencement of the measuring. An adjustment of the range of the range capacitor is provided by a second voltage divider.
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