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:
Oct. 20, 2009
Filed:
Dec. 06, 2002
Jon Nysæther, Oslo, NO;
Knut Riisnæs, Oslo, NO;
Ingvild Juvkam Dyve, Legal Representative, Oslo, NO;
Ørjan G. Martinsen, Stabekk, NO;
Geir Mostad, Oslo, NO;
Nicolai W. Christie, Hosle, NO;
Rune Pedersen, Heggedal, NO;
Jon Nysæther, Oslo, NO;
Knut Riisnæs, Oslo, NO;
Ingvild Juvkam Dyve, legal representative, Oslo, NO;
Ørjan G. Martinsen, Stabekk, NO;
Geir Mostad, Oslo, NO;
Nicolai W. Christie, Hosle, NO;
Rune Pedersen, Heggedal, NO;
IDEX ASA, Fornebu, NO;
Abstract
A sensor device for performing measurements on an at least partially conductive surface includes a number of conductive structures at or directly below the sensor surface. The conductive structures consist of at least one stimulation or current sink electrode and a number of sensor elements coupled to interrogation electrodes in an electronic circuit for measuring impedance between the electrodes and the stimulation electrode. The sensor device also includes at least one additional clamping electrode positioned in the vicinity of the sensor elements and coupled to a chosen voltage.