发明名称 |
Circuitry for measuring piezoelectric signals |
摘要 |
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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申请公布号 |
US6218898(B1) |
申请公布日期 |
2001.04.17 |
申请号 |
US19990305119 |
申请日期 |
1999.05.04 |
申请人 |
K.K. HOLDING AG |
发明人 |
ZANETTI MARKUS |
分类号 |
G01D3/036;G01D18/00;G01L1/16;(IPC1-7):H03F1/00;H01L41/04 |
主分类号 |
G01D3/036 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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