Patent · US Expired

Piezoelectric resonator with acoustic reflectors

US4166967A · kind A · utility

151Cited by

5References

11Claims

0Family size

Assignee

Hans List · AT

Inventors

Ewald Benes · Wien, AT
Dieter Hammer · Wien, AT

Key dates

Filing date	Oct 18, 1977
Grant date	Sep 4, 1979
Priority date	—
Expiry date	Oct 18, 1997

Classification

Technology area (CPC G)Physics
CPC primaryG01N2291/02827
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A piezoelectric resonator, particularly for pressure, acceleration, temperature and load transducers, consisting of a resonator core having holding discs on its opposite sides, said holding discs being formed of solid body layers, said layers consisting alternatively of materials having strongly different acoustic impedance for unit cross-sectional area.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.