Air pressure sensor for impact recognition

US8544333B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Boris Adam · Traunreut, DE
• Martin Schuerer · Neckartenzlingen, DE

Key dates

• Filing date: Feb 26, 2009
• Grant date: Oct 1, 2013
• Expiry date: May 23, 2029

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60R21/0136
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

An air pressure sensor (100) for impact recognition is provided, having a chamber (R), and a sensor element (S) for generating a signal as a function of the air pressure being situated in the chamber (R). The chamber (R) is sealed off by a pressure compensation element (M, MV). The pressure compensation element (M, MV) is designed in such a way that penetration of interfering substances into the chamber (R) is prevented. However, transmission of pressure into the chamber (R) from the outside is possible.