Dynamic vehicle-weighing system

Details Dynamic vehicle-weighing system Dynamic vehicle-weighing system

1988-04-20

1988-12-27

Miller, Jr., George H.

Weighing scales

Self-positioning

Electrical current generating or modifying

177 1, G01G 314

Patent

active

047934298

ABSTRACT:
A system for weighing a vehicle in motion is disclosed. One or more piezoelectric weight sensors produce charge outputs in response to the weight of a vehicle passing over the sensors. A charge amplifier converts the sensor outputs to a voltage level. A peak voltage detector detects the peak voltage, which represents the sum of all sensor outputs. The peak voltage is then converted to a weight value using the thickness sensitivity of the piezoelectric material.

REFERENCES:
patent: 3565195 (1971-02-01), Miller et al.
patent: 3678378 (1972-07-01), Trott et al.
patent: 3782486 (1974-01-01), Kuhn et al.
patent: 3875481 (1975-04-01), Miller et al.
patent: 3895421 (1975-07-01), Miller
patent: 4266263 (1981-05-01), Haberl et al.
patent: 4461363 (1984-07-01), Loy
patent: 4512431 (1985-04-01), Bloomfield
patent: 4520885 (1985-06-01), Jeffrey
patent: 4581677 (1986-04-01), Hruby et al.

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