Pressure sensor

US7472600B2 · kind B2 · utility

Assignee

• Kistler Holding AG · CH

Inventors

• Peter Wolfer · Neuhausen, CH
• Reinhold Hess · Winterthur, CH
• Michael Mueller · Nagold, DE
• Claudio Cavalloni · Regensdorf, CH
• Christoph Kern · Aspach, DE
• Steffen Schott · Schwieberdingen, DE
• Pavlo Saltikov · Waiblingen, DE
• Thomas Ludwig
• Juergen Krueger · Bremen, DE

Key dates

• Filing date: Sep 6, 2005
• Grant date: Jan 6, 2009
• Expiry date: Sep 30, 2025

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B29C45/77
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

The invention relates to a pressure sensor (1), comprising a housing (2), a housing element (3) which may be exposed to a pressure chamber (10), mounted on the housing (2) by means of a metallic membrane (5) and a measuring cell (4) which can indirectly measure a pressure acting on the housing element (3) and transmitted to the measuring cell (4) as a force resulting therefrom. According to the invention, said pressure sensor (1) comprises a housing element (3) embodied as a pin and projects out of the housing (2). The advantage of such an arrangement is only a small drilling to a pressure chamber (10) need be provided, in order to carry out a pressure measurement. The pin (3) need only be so long that the front end thereof, in the assembled state, approximately reaches the wall (11) of the pressure chamber (10).