Capacitive position sensor and sensing methodology

Details Capacitive position sensor and sensing methodology Capacitive position sensor and sensing methodology

2006-11-28

2006-11-28

Lee, Diane (Department: 2858)

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Lumped type parameters

C324S662000

Reexamination Certificate

active

07141988

ABSTRACT:
A simple and robust variable coaxial capacitive sensor and detection method for monitoring the position of a rapidly reciprocating member such as a piston or displacer in a free piston Stirling engine. The coaxial capacitor of the present invention in a preferred embodiment thereof is configured to modulate capacitive electrode area rather than inter-electrode spacing and as a result a highly linear transfer function can be achieved. Also disclosed are detection methods which derive and process signals in connection with applications which have small sensor capacitance variations while suppressing stray capacitance error.

REFERENCES:
patent: 3564397 (1971-02-01), Sargent et al.
patent: 3928796 (1975-12-01), Kaiser
patent: 4408456 (1983-10-01), Rauch
patent: 4557509 (1985-12-01), Giebeler
patent: 4587850 (1986-05-01), Moser
patent: 4638670 (1987-01-01), Moser
patent: 4788489 (1988-11-01), Kobayashi et al.
patent: 4837500 (1989-06-01), Abbringh
patent: 4862063 (1989-08-01), Kobayashi et al.
patent: 4951048 (1990-08-01), Ichikawa et al.
patent: 4961055 (1990-10-01), Habib et al.
patent: 5197429 (1993-03-01), Kita
patent: 5239307 (1993-08-01), Andermo
patent: 5317351 (1994-05-01), Takahara et al.
patent: 5418468 (1995-05-01), Baker et al.
patent: 5528928 (1996-06-01), Baker et al.
patent: 5585733 (1996-12-01), Paglione
patent: 5708367 (1998-01-01), Tousson
patent: 5844415 (1998-12-01), Gershenfeld et al.
patent: 5895844 (1999-04-01), Krueger
patent: 6084320 (2000-07-01), Morita et al.
patent: 6094912 (2000-08-01), Williford
patent: 6185829 (2001-02-01), Geisel
patent: 6293303 (2001-09-01), Mori et al.
patent: 6346818 (2002-02-01), Wilson et al.
patent: 6382246 (2002-05-01), Mori et al.
patent: 6448792 (2002-09-01), Yoshida et al.
patent: 6499461 (2002-12-01), Kubota et al.
patent: 6504385 (2003-01-01), Hartwell et al.
patent: 6530756 (2003-03-01), Morita et al.
patent: 6772087 (2004-08-01), Sasaki
patent: 6781387 (2004-08-01), Goldfine et al.
patent: 6856107 (2005-02-01), Daboussi
patent: 6861848 (2005-03-01), Kasai et al.
patent: 2001/0030544 (2001-10-01), Wilson et al.
patent: 35 18 858 (1985-11-01), None
patent: 42 05 048 (1993-08-01), None
patent: 44 10 363 (1995-09-01), None
patent: 1 601 572 (1981-10-01), None
patent: 60252833 (1985-12-01), None
patent: 03225203 (1991-10-01), None
patent: 04305107 (1992-10-01), None
patent: 05113304 (1993-05-01), None

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