The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 01, 2006
Filed:
Jan. 25, 2006
Jack E. Howard, Gardnerville, NV (US);
Oliver H. Lieder, Carson City, NV (US);
Brian Burket Bowlds, Minden, NV (US);
Paul Austin Lindsay, Gardnerville, NV (US);
Jack E. Howard, Gardnerville, NV (US);
Oliver H. Lieder, Carson City, NV (US);
Brian Burket Bowlds, Minden, NV (US);
Paul Austin Lindsay, Gardnerville, NV (US);
General Electric Company, Schenectady, NY (US);
Abstract
A non-contact capacitive sensor including: a sensor plate configured to be displaced from a surface and to measure a capacitance of a gap between the surface and sensor plate; an active shield plate over the sensor plate and insulated from said sensor plate, wherein a high frequency input signal is applied to the active shield plate and sensor plate; an effective ground shield plate connected through a first resistor to a ground, over the active shield plate to sandwich the active shield plate between the ground shield plate and the sensor plate, and the ground shield plate is insulated from the active shield plate, and a second resistor connected between the ground shield plate and the active shield plate to provide a direct current (dc) path through the sensor.