Pressure distribution detecting device

Details Pressure distribution detecting device Pressure distribution detecting device

1989-08-25

1990-09-04

Woodiel, Donald O.

Measuring and testing

Dynamometers

Responsive to multiple loads or load components

7386267, G01L 122, G01L 516

Patent

active

049534106

ABSTRACT:
A pressure distribution detecting device comprises a plurality of piezo-electric sensor elements arranged in a matrix for outputting voltages corresponding to pressure changes. A piezo-electric sensor element whose output voltage is to be read is sequentially selected through a control line so that when all the piezo-electric sensor elements are selected, selection through a control line is repeated. Output voltages of the piezo-electric sensor elements are read through reading lines and are then stored in a data processing device for each piezo-electric sensor element. In the data processing device, increment or decrement which is an output voltage corresponding to a pressure change in a sensor element is stored accumulatively, so that data concerning a pressure at a present time from an initiation of measurement can be obtained.

REFERENCES:
patent: 4843891 (1989-07-01), Brunner et al.

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