Time interval trimmed differential capacitance sensor

Details Time interval trimmed differential capacitance sensor Time interval trimmed differential capacitance sensor

2005-12-22

2008-05-06

Le, Dinh T. (Department: 2816)

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Lumped type parameters

C324S678000, C324S658000, C327S100000

Reexamination Certificate

active

07368923

ABSTRACT:
An apparatus and method for operation of a differential capacitance transducer, including generating substantially opposing polarity excitation drive signals by operation of a pair of drive signal generators, applying the excitation drive signals to a pair of sense capacitors of a differential capacitance sensor, sensing a differential capacitance at a common junction between the pair of sense capacitors; and individually controlling the drive signal generators for trimming a null bias of the sense capacitor pair at the common junction.

REFERENCES:
patent: 4890598 (1990-01-01), Kinsworthy
patent: 5311140 (1994-05-01), Permuy
patent: 5367217 (1994-11-01), Norling
patent: 5450762 (1995-09-01), Woodruff et al.
patent: 5456111 (1995-10-01), Hulsing, II
patent: 5597956 (1997-01-01), Ito et al.
patent: 5682788 (1997-11-01), Netzer
patent: 5717140 (1998-02-01), Hulsing, II
patent: 5744968 (1998-04-01), Czarnocki et al.
patent: 6269698 (2001-08-01), Woodruff
patent: 6366099 (2002-04-01), Reddi
patent: 6530275 (2003-03-01), Hollocher et al.
patent: 6949937 (2005-09-01), Knoedgen

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