Switched capacitance meter reading device using variable width e

Details Switched capacitance meter reading device using variable width e Switched capacitance meter reading device using variable width e

1990-01-29

1992-08-04

Yusko, Donald J.

Communications: electrical

Continuously variable indicating

With particular transmitter

34087002, 34087004, 324660, 364556, G08C 1910

Patent

active

051362864

ABSTRACT:
A humidity and temperature resistant apparatus for determining the orientation of a rotatable meter hand relative to a dial spaced apart from a meter hand that creates and depletes a charge between a center electrode, a meter hand, and an outer variable width electrode array very rapidly to transport electrons through a resistor capacitor combination attached to a positive power supply whereby the average current drawn through the resistor capacitor combination creates a voltage that corresponds proportionally to the magnitude of the capacitance being measured. The variable width electrode array is disposed on a surface of a substrate delimiting a center portion containing an aperture for receiving a rotatable member, and includes a center electrode located in the center portion on the surface of the substrate at least partially circumscribing the aperture and a calibration ring that circumscribes and is spaced apart from the center electrode.

REFERENCES:
patent: 3312892 (1967-04-01), Parnes
patent: 3683402 (1972-08-01), Parnell
patent: 4007454 (1977-02-01), Cain et al.
patent: 4165505 (1979-08-01), Cain et al.
patent: 4429308 (1984-01-01), Shankle
patent: 4433332 (1984-02-01), Wason
patent: 4477860 (1984-10-01), Wason et al.
patent: 4606008 (1986-08-01), Wason
patent: 4779094 (1988-10-01), Lee et al.
patent: 4924407 (1990-05-01), King et al.
Microelectronics Digital & Analog Circuits and Systems, Jacob Millman, McGraw-Hill Publishers, 1979 pp. 312-315, 523-529, 569-573, 599-600, 606-615, 618-620.
Motorola Linear Integrated Circuits, Series C, 1979, pp. 3-31.
Electronic Devices and Circuits, Discrete and Integrated, M. S. Ghausi, Holt, Rinehart and Winston, 1985, pp. 431-434.

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