Piezoelectric transducer for low forces

Details Piezoelectric transducer for low forces Piezoelectric transducer for low forces

1986-03-12

1987-10-20

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

73774, 73781, 177210R, 310328, H01L 4108

Patent

active

047016604

ABSTRACT:
The invention relates to a force transducer with at least 100 pC/N sensitivity. The piezo elements of this force transducer are connected rigidly to the force introducing elements, and therefore require no mechanical prestressing. A diaphragm may be provided and is then the only force shunt with a maximum proportion of 5%. The main force flow runs in these transducers through the piezo elements themselves, thereby keeping the pseudo-pyro effect, which is frequently brought about by mechanical shunting, within very narrow limits. Because of bottlenecks in the heat guide path to the piezo elements and the symmetrical construction of the supports, heat transients are also prevented from exerting an appreciable effect on the position of the zero point. This provides zero point stability, which allows accurate measurements in the 0 . . . 1 N range, even where the ambient conditions are unfavorable from the point of view of temperature.

REFERENCES:
patent: 2216966 (1940-10-01), Swift
patent: 3313962 (1967-04-01), Sonderegger
patent: 3383914 (1968-05-01), MacArthur
patent: 4126801 (1978-11-01), Corbett
patent: 4175243 (1979-11-01), Corbett
patent: 4406966 (1983-09-01), Paros
patent: 4439705 (1984-03-01), Corbett

Affiliated with

Also associated with

Rating

Piezoelectric transducer for low forces does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Piezoelectric transducer for low forces, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Piezoelectric transducer for low forces will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1614254