Acceleration sensor for use in automotive vehicle

Details Acceleration sensor for use in automotive vehicle Acceleration sensor for use in automotive vehicle

1987-08-04

1989-09-26

Chapman, John

Measuring and testing

Speed, velocity, or acceleration

Acceleration determination utilizing inertial element

338 46, 338 2, G01P 1512

Patent

active

048691070

ABSTRACT:
A semi-conductor type accelerometer features the provision of four piezo resistors on the surface of a flexible beam which interconnects the main body portion with a weight or mass which is adapted to cause the beam to flex under the application of an accelerative force. The resistors are subject to essentially the same ambient conditions whereby thermally induced drift is obviated while a high output for a given amount of beam flexure is obtained.

REFERENCES:
patent: 3266303 (1966-08-01), Pfann
patent: 3572109 (1971-03-01), Yerman
patent: 3968466 (1976-07-01), Nakamura et al.
patent: 4035823 (1977-07-01), Marshall
patent: 4104605 (1978-08-01), Boudreaux et al.
patent: 4291293 (1981-09-01), Yamada et al.
patent: 4522072 (1985-06-01), Sulouff et al.
patent: 4553436 (1985-11-01), Hansson
M. Korner et al., "Integrated Piezo-Resistive Acceleration Pick-Ups", Acta. Imeko (1979), pp. 583-590.
L. M. Roylance et al., "A Batch-Fabricated Silicon Accelerometer", IEEE Ed., vol. Ed-26, No. 12, pp. 1911-1917 (Dec. 1979).

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