Piezoresistive transducer

US9063167B2 · kind B2 · utility

Assignee

• Fraunhofer-Gesellschaft e.V. · DE

Inventors

• Robert Külls · Detmold, DE
• Siegfried Nau · Bad Hersfeld, DE

Key dates

• Filing date: Feb 28, 2011
• Grant date: Jun 23, 2015
• Expiry date: Jan 31, 2032

Classification

• Technology area (CPC G): Physics
• CPC primary: G01P15/123
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A piezoresistive transducer is disclosed having a framework including a support element attached to a bending element that undergoes a deformation relative to the support element when a force acts on the bending element including a neutral fiber whose length does not change during the deformation. At least one piezoresistive expansion body is attached to the support element that exhibits a piezoresistive material and converts the deformation of the bending element into an electrically detectable change in resistance.