Transducer with a flexible piezoelectric layer as a sensor eleme

Details Transducer with a flexible piezoelectric layer as a sensor eleme Transducer with a flexible piezoelectric layer as a sensor eleme

1986-12-17

1988-04-12

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310324, 310338, 73754, H01L 4108

Patent

active

047376767

ABSTRACT:
A transducer comprising a flexible piezoelectric layer as a sensor element for measuring mechanical quantities in hollow bodies, above all pressures in pipes, the opposite sides of this layer being bonded to electrically-conductive contact layers and being connectable via leads to a display and evaluation unit. In order to achieve a high temperature stability in such transducers and to make them suitable for use at temperatures exceeding 80.degree. C., the piezoelectric layer is proposed to consist of wurtzite or sphalerite. One of the electrically-conductive contact layers can be of some heat-resistant, flexible supporting material, for instance flexible metal foil, such as Cu-Be foil, or a sheet of plastic, one or both of whose sides are metallized, and the other electrically-conductive contact layer can be a metal coating applied by evaporation.

REFERENCES:
patent: 3486046 (1969-12-01), Zalar
patent: 4004409 (1977-01-01), Ganter et al.
patent: 4176524 (1979-12-01), Kamiyama et al.
patent: 4193010 (1980-03-01), Kompanek
patent: 4216403 (1980-08-01), Krempl et al.
patent: 4304126 (1981-12-01), Yelke
patent: 4533907 (1985-08-01), Thatcher
patent: 4541284 (1985-09-01), Guagliumi et al.
patent: 4600855 (1986-07-01), Strachan
patent: 4642508 (1987-02-01), Suzuki et al.
Brushed-On Piezoelectric Transducers, by J. G. Martner, Ultrasonics, Oct. 69, vol. 7, No. 4, pp. 234-237.

Affiliated with

Also associated with

Rating

Transducer with a flexible piezoelectric layer as a sensor eleme does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Transducer with a flexible piezoelectric layer as a sensor eleme, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transducer with a flexible piezoelectric layer as a sensor eleme will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1431279