Accelerometer with piezoelectric element

Details Accelerometer with piezoelectric element Accelerometer with piezoelectric element

1990-07-18

1991-10-01

Chapman, John E.

Measuring and testing

Vibration

Test chamber

73654, 310329, G01P 1508, G01M 1108

Patent

active

050522264

ABSTRACT:
The seismic mass is fixed to the mounting base by a tension bolt. This bolt passes with an important play through an opening of the piezoelectric transducer arranged between the mounting base and the seismic mass. Under the influence of inertial forces which act perpendicularly to the axis of the bolt on the seismic mass, bending loads occur which result in an increase of the pressure at one side and in a decrease of the pressure at the other side of the piezoelectric transducer. The transducer has halves polarized in opposite directions and subjected to pressures varying in opposite sense and electrodes covering the top and bottom surfaces of the halves, signals of the same polarity being induced under the bending loads. External influences which act uniformly on the transducer are compensated.

REFERENCES:
patent: 3400284 (1968-09-01), Elazor
patent: 3893342 (1975-07-01), Florian et al.
patent: 4144747 (1979-03-01), Datwyler, Jr.
patent: 4262544 (1981-04-01), Herzl
patent: 4344010 (1982-08-01), Vig et al.
patent: 4447755 (1984-05-01), Ghiurea
patent: 4495433 (1985-01-01), Sheridan
patent: 4586377 (1986-05-01), Schmid
patent: 4611490 (1986-09-01), Takeuchi
patent: 4776222 (1988-10-01), Lew

Affiliated with

Also associated with

Rating

Accelerometer with piezoelectric element does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Accelerometer with piezoelectric element, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Accelerometer with piezoelectric element will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1746380