Kistler Holding Ag

Reinhard Staub

Claudio Cavalloni

Paul Furter

Rolf Thiel

Giovanni Mastrogiacomo

Sandro Brandenberger

Paul Engeler

Georges Schaffner

Andri Michael Lehmann

Andreas Kirchheim

Daniel Otter

Andreas Ullrich

A contact force measuring device for measuring a contact force of a spring contact includes a measuring probe having a height in a contact region identical to the height of the contact pin that fits into an opening defined between a pair of opposing spring contact arms of the spring contact. The probe includes an upper insulator element attached to an upper side of a piezoelectric element, and a lower insulator element is attached to a lower side of the piezoelectric element opposite the upper side. The contact force measuring device includes a holding device connected to one end of the probe, an evaluation unit, a supporting device and a positioning device.

Contact force measuring device and process for measuring a contact force using the contact force measuring device

A contact force testing apparatus includes a measuring sensor that can be contacted with an electrical contact element and measures a contact force (F) of a contact with the electrical contact element. The measuring sensor includes piezoelectric material that receives the contact force (F) in a contact region and produces polarization charges. The measuring sensor includes an acceptor electrode that is completely surrounded by piezoelectric material in the contact region in the direction of a thickness extension of the measuring sensor and receives the polarization charges. A method is provided for the use of such a contact force testing apparatus, and a method is provided for producing such a contact force testing apparatus.

Contact force testing apparatus, use of such a contact force testing apparatus and method for producing such a contact force testing apparatus

A contact force testing apparatus includes a measuring sensor that can be contacted with an electrical contact element and measures a contact force (F) of a contact with the electrical contact element of an electrical connector having a male component and a female component. The measuring sensor receives the contact force in a contact region with a piezoelectric pick-up. The measuring sensor includes a plurality of piezoelectric pick-ups that are spaced apart from one another by pick-up gaps. The measuring sensor has a protective sleeve that covers the piezoelectric pick-ups and the pick-up gaps in the contact region.

A strain gauge measures elongation and compression at a surface of a component. The strain gauge comprise a housing having a fixation configured to attach the strain gauge to the surface to be measured, a connector for contacting a measuring cable, at least two support surfaces at the housing for securely bearing on the surface to be measured. At least one of the support surfaces is provided with a transduction element and with a measuring element for measuring shearing forces. The measuring element is connected by an internally disposed cable to the connector and to a module that comprises that at least one support surface provided with the measuring element pre-assembled together with the transduction element.

Strain gauge

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Herrliberg, Switzerland

Reinhard Staub