Monoaxially oriented piezoelectric polymer transducer for measurement of mechanical values on bodies

US4216403A · kind A · utility

Assignee

• Hans List · AT

Inventors

• Peter W. Krempl · Leibnitz, AT
• Peter Claassen · Ludwigshafen, DE
• Helmut List · Graz, AT

Key dates

• Filing date: Jul 25, 1978
• Grant date: Aug 5, 1980
• Expiry date: Jul 25, 1998

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S310/80
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A transducer comprising a piezoelectric measuring sensor element for measurement of mechanical values on hollow bodies, especially of the pressure distribution within pipes, the piezoelectric sensor element being a flexible piezoelectric film, the opposite surfaces of the film being in connection with electrically leading contact surfaces, and the measuring sensor element being at least partially and at least indirectly closely joinable to the surface of the hollow body.