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Patent Searching and Data


Title:
LINEAR CAPACITIVE DISPLACEMENT SENSOR
Document Type and Number:
WIPO Patent Application WO/2014/163988
Kind Code:
A3
Abstract:
A method and system for measuring displacement of a structure is disclosed. The method and system comprise providing a first capacitance and providing a second capacitance. The first and second capacitances share a common terminal. The method and system further include determining a difference of the inverses of the value of the first and second capacitances when the structure is displaced. The first capacitance varies in inverse relation to the displacement of the structure.

Inventors:
CAGDASER BARIS (US)
CHEN DU (US)
AKYOL HASAN (US)
SHAEFFER DEREK (US)
Application Number:
PCT/US2014/019680
Publication Date:
February 26, 2015
Filing Date:
February 28, 2014
Export Citation:
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Assignee:
INVENSENSE INC (US)
International Classes:
G01B7/00; G01R27/26
Foreign References:
US5028876A1991-07-02
US20110261006A12011-10-27
US5065105A1991-11-12
US5006952A1991-04-09
Other References:
See also references of EP 2972066A4
Attorney, Agent or Firm:
SAWYER, Joseph, A., Jr. (P.C.P.O. Box 5141, Palo Alto CA, US)
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