Chemically sensitive transducer

US5039390A · kind A · utility

Inventors

• Norbert Hampp · Hersbruck, DE
• Christoff Brauchle · Schenefeld, DE

Key dates

• Filing date: Apr 11, 1990
• Grant date: Aug 13, 1991
• Expiry date: Apr 11, 2010

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01L2924/3025
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A chemically sensitive transducer for selectively determining a chemical property of a fluid and providing a measurement signal to an amplifying circuit. The transducer has a measuring electrode coupled to the amplifying circuit and provides a measurement signal to the amplifying circuit. A membrance covers the measuring electrode, this membrane being sensitive to a specified chemical property. A carrier plate, with first and second sides, has the measuring electrode arranged on its first side and the amplifying circuit on its second side. The carrier plate has a conductor extending between the first and second sides which electrically couples the measuring electrode and the amplifying circuit.