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. 09, 2016
Filed:
Mar. 26, 2013
Kistler Holding Ag, Winterthur, CH;
David Cornu, Bellinzona, CH;
Adrian Hofmann, Ellikon am Rhein, CH;
Leo Amstutz, Neftenbach, CH;
Roman Strebel, Amlikon-Bissegg, CH;
Claudio Cavalloni, Regensdorf, CH;
KISTLER HOLDING AG, Winterthur, CH;
Abstract
An electronic circuit that changes a charge signal into a voltage signal within a sensor suitable for direct installation in a roadway can be connected to two single-core cables that need not be highly insulating yet can realize the required power supply of the electronics. The circuit includes an integrated impedance converter (IEPE) at the output to a two-core cable and a charge amplifier with an ICthat has two inputs. A capacitor Cc is connected in series to the signal output of the sensor at one input of the IC. A Zener diode D is arranged between the ground output of the sensor and the second input of the ICand can be supplied with power by a resistor Rin conjunction with a power supply arranged on the output side in order to adapt the potential at the second input of the IC