Pressure sensor system

Details Pressure sensor system Pressure sensor system

1990-09-04

1992-06-02

Crosland, Donnie L.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340447, 340626, 200 6122, 200 6125, 200 83A, 116 34R, 731468, 731465, B60C 2300

Patent

active

051190664

ABSTRACT:
A pressure sensor that responds to a predetermined rate of change of pressure in the fluid medium comprises a housing that encloses a pressure chamber which has a divider wall that consists of a printed circuit board and a flexible diaphragm which is permeable. The divider wall serves to separate the pressure chamber from the pressure sensitive system in which the sensor is used. The sensor may be used in a pneumatic tire and in such use the flexible diaphragm will be deflected to activate a transmitter when the pressure in the tire changes at a hazardous rate. The sensor will not activate the transmitter when the rate of change of pressure is less than a hazardous rate of change.

REFERENCES:
patent: 4211901 (1980-07-01), Matsuda et al.

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