Quad-gate demodulator circuit for capacitive transducers

Details Quad-gate demodulator circuit for capacitive transducers Quad-gate demodulator circuit for capacitive transducers

1982-09-23

1984-08-28

Goldberg, Gerald

Measuring and testing

Fluid pressure gauge

Diaphragm

73708, 324166, G01L 1904, H03K 902

Patent

active

044676557

ABSTRACT:
A quad-gate demodulator circuit for capacitive transducers in which analog gate devices replace the diodes of a prior art diode-quad bridge circuit. This improvement eliminates the temperature and ratiometricity errors associated with the diode-quad circuit.

REFERENCES:
patent: 3965744 (1976-06-01), Gutjahr et al.
patent: 4289035 (1981-09-01), Lee et al.
patent: 4387601 (1983-06-01), Azegami et al.

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