Integrated non-contact/contact capacitance sensor

Details Integrated non-contact/contact capacitance sensor Integrated non-contact/contact capacitance sensor

2007-04-10

2007-04-10

Benson, Walter (Department: 2858)

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Lumped type parameters

C324S663000

Reexamination Certificate

active

11043324

ABSTRACT:
A capacitance sensor of the present invention is equipped with a sensor unit that comprises a pair of detection electrodes, which are connected to respective reference capacitors, are provided with being oppositely separated, and can contact each other; and an insulation member having flexibility by holding at least one detection electrode. And a capacitance type object detection method thereof is an object detection method for detecting an object's nearing: when the object nears, a non-contact sensor detects it with non contact according to a change of a capacitance; and when the object makes contact, a contact sensor, which deforms by the contact of the object, detects it with contact.

REFERENCES:
patent: 6538802 (2003-03-01), Wang et al.
patent: 6700393 (2004-03-01), Haag et al.
patent: 6940291 (2005-09-01), Ozick
patent: 6968746 (2005-11-01), Shank et al.
patent: 2004/0145378 (2004-07-01), Shoji et al.
patent: 2005/0012484 (2005-01-01), Gifford et al.
patent: 2001-32628 (2001-02-01), None

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