Electric charge type sensor

Details Electric charge type sensor Electric charge type sensor

1999-02-17

2000-08-15

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

H01L 4108

Patent

active

061041203

ABSTRACT:
An electric charge type sensor includes a detection element detecting a physical property to be detected and outputting a detection signal in the form of electric charge and an operational amplifier having an output terminal, an inversion input terminal and a non-inversion input terminal. The inversion input terminal is connected to the detection element while the non-inversion input terminal is connected to a reference potential. The electric charge type sensor further comprises a feedback capacitor, a voltage divider and a feedback resistor. The feedback capacitor is connected between the output terminal and the inversion input terminal. The voltage divider is connected to the output terminal for providing a partial voltage of an output voltage at the output terminal. A feedback resistor is connected between the voltage divider and the inversion input terminal.

REFERENCES:
patent: 3612966 (1971-10-01), Dybel
patent: 4178525 (1979-12-01), Barr et al.
patent: 4545041 (1985-10-01), Tims et al.
patent: 5034648 (1991-07-01), Gastgeb
patent: 5130598 (1992-07-01), Verheyen et al.
patent: 5347870 (1994-09-01), Dosch et al.

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