Sensor unit for the measurment of a variable in a medium

US7963154B2 · kind B2 · utility

Assignee

• Kistler Holding AG · CH

Inventors

• Ernst Obermeier · Berlin, DE
• Biswajit Mukhopadhyay · Berlin, DE
• Jochen Von Berg · Neftenbach, CH
• Ulrich Albicker · Laichingen, DE
• Marco Gnielka · Winterthur, CH
• Claudio Cavalloni · Regensdorf, CH

Key dates

• Filing date: Aug 28, 2007
• Grant date: Jun 21, 2011
• Expiry date: Jun 27, 2028

Classification

• Technology area (CPC G): Physics
• CPC primary: G01L19/0069
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A sensor unit for measuring a measurement variable in a medium, in particular in an aggressive liquid or gaseous medium, comprises a sensor that is arranged in a sensor capsule and has a sensor region that is arranged on a base body. In order to detect the measurement variable in the sensor region, a measurement opening is provided in the sensor capsule. On a side facing the measurement opening, the sensor region has a measurement surface that is provided with measurement electronics. An electrical supply line is provided on the sensor for the purpose of transmitting a sensor signal that is generated by the measurement electronics. A plated-through hole is provided in the base body. The plated-through hole is used to connect the measurement electronics to the electrical supply line via signals through the base body, on a base side of the sensor that faces away from the measurement opening.