公开(公告)号：US20190331543A1

公开(公告)日：2019-10-31

申请号：US16462117

申请日：2017-10-05

Applicant: Kistler Holding AG

Inventor： Claudio Cavalloni ,  Kim Pfluger

IPC: G01L5/16 ,  G01L1/16 ,  G01P15/09

Abstract: A measurement transducer for measuring a force includes a resonator element, which can be excited to at least one resonance frequency, and at least one force application element on which the force is applied and which transmits the force to the resonator element. The force application element is a hollow body defining a top surface, a lateral surface and a cavity. The top and lateral surfaces are mechanically connected and enclose the cavity, which contains the resonator element that is mechanically connected to the lateral surface. The lateral surface defines at least one recessed area that extends into the cavity and prevents transmission of the force from the top surface. The lateral surface defines at least one non-recessed area that transmits the force from the top surface.

公开(公告)号：US09989433B2

公开(公告)日：2018-06-05

申请号：US15122714

申请日：2015-03-20

Applicant: KISTLER HOLDING AG

Inventor： Claudio Cavalloni ,  Roland Sommer

IPC: G01L15/00 ,  G01L5/16 ,  G01L9/00 ,  G01L1/16 ,  H01L41/113 ,  G01K11/26

CPC classification number: G01L15/00 ,  G01K11/26 ,  G01L1/16 ,  G01L5/167 ,  G01L9/0022 ,  G01L9/008 ,  H01L41/1132

Abstract: A measuring element for measuring dynamic pressure, temperature and/or static pressure includes a body made of a piezoelectric material and having opposing side surfaces carrying electrodes. The piezoelectric material of the body is selected in such a manner that a thrust coefficient of the piezoelectric e-tensor is not equal to zero, with the result that the inverse piezoelectric effect can be used, and a transverse coefficient of the piezoelectric d-tensor is not equal to zero and/or a longitudinal coefficient of the piezoelectric d-tensor is not equal to zero, with the result that the transverse piezoelectric effect can be used in the transverse direction and/or the longitudinal piezoelectric effect can be used in the longitudinal direction in a simultaneous manner with the inverse piezoelectric effect.