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. 16, 2018
Filed:
Jul. 22, 2016
Kistler Holding Ag, Winterthur, CH;
Reinhold Buck, Illnau, CH;
Martin Giger, Winterthur, CH;
KISTLER HOLDING AG, Winterthur, CH;
Abstract
A piezoelectric pressure sensor includes a sensor housing enclosing a membrane, a piezoelectric sensor, an electrode arrangement and a pre-stressing body. The membrane captures a pressure profile causing polarization charges generated on the piezoelectric sensor. The electrode arrangement receives the polarization charges generated and includes a charge-pick-off and a charge output. The charge pick-off is electrically and mechanically connected to the charge output, which is electrically is mechanically connected to the pre-stressing body via an electrical feedthrough arrangement on a side of the pre-stressing body that faces away from the membrane and seals the third gap in a pressure-tight manner from an environment of the third gap.