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:
Apr. 21, 2015
Filed:
Dec. 14, 2011
Applicants:
Reto Gehrig, Degersheim, CH;
Karl Bleisch, Uster, CH;
Beat Koller, Uster, CH;
Inventors:
Assignee:
Uster Technologies AG, Uster, CH;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01R 27/26 (2006.01); G01B 7/16 (2006.01); G01D 5/24 (2006.01); G01N 33/36 (2006.01); G01N 27/22 (2006.01); G06K 9/00 (2006.01); G01L 9/12 (2006.01); G01C 19/5719 (2012.01); G01L 1/14 (2006.01);
U.S. Cl.
CPC ...
G01R 27/2605 (2013.01); G01D 5/24 (2013.01); G01N 27/226 (2013.01); G01N 27/225 (2013.01); G01B 7/16 (2013.01); G01N 27/221 (2013.01); G01N 27/22 (2013.01); G06K 9/0002 (2013.01); G01L 9/12 (2013.01); G01C 19/5719 (2013.01); G01L 1/14 (2013.01); G01N 27/223 (2013.01); G01N 33/365 (2013.01); G01N 27/228 (2013.01);
Abstract
The capacitive measuring circuit for a moved elongated test material contains at least two measuring capacitors, each of which is configured for receiving the test material. It further contains electrically actuatable selection means, by means of which one of the measuring capacitors can be selected in such a way that only the selected measuring capacitor contributes to the measurement, whereas the other measuring capacitors do not. As a result, the total capacitance of the measuring circuit is reduced and its sensitivity is increased.