Capacitance to digital conversion system

Details Capacitance to digital conversion system Capacitance to digital conversion system

1978-04-17

1979-07-31

Morrison, Malcolm A.

Communications: electrical

Audible indication

Percussion-type sound producer

340347R, H03K 1302

Patent

active

041632214

ABSTRACT:
A capacitance to digital conversion system wherein condition sensing capacitors and reference capacitors are arranged with circuitry including a virtual ground and means for providing an error signal related to the sensed condition. The capacitors, virtual ground and error signal means are disposed within a sealed housing so that the system is isolated from environmental influences and is hence more stable than like systems known in the art.

REFERENCES:
patent: 3506877 (1970-04-01), Owen
patent: 3816911 (1974-06-01), Knappenberger
patent: 4001813 (1977-01-01), Kosakowski
Graeme, Jerald J. -- Designing with Operational Amplifiers Applications Alternatives, 1977 by McGraw Hill, pp. 261-262.

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