Pressure sensor and sensing method

Details Pressure sensor and sensing method Pressure sensor and sensing method

1980-06-17

1982-08-03

Woodiel, Donald O.

Measuring and testing

Fluid pressure gauge

Vibration type

73704, 73723, G01L 900

Patent

active

043422306

ABSTRACT:
A pressure sensor and sensing method, wherein the sensor comprises a pressure responsive element movable corresponding to a pressure to be measured and a means for detecting movement of the pressure responsive element. The movement detecting element comprises two parts of switch means movable to and fro with respect to each other, and a substantially constant oscillation is applied to one part so that movement of the pressure responsive element alters a threshold value which is applied to the substantially constant oscillation in order to produce a varying pulse signal.

REFERENCES:
patent: 1431914 (1922-10-01), Dashner et al.
patent: 2919576 (1960-01-01), Weller et al.
patent: 3441695 (1969-04-01), Stedfeld et al.
patent: 4195531 (1980-01-01), Okamura
Price, "Vibrating-Contact Pressure", Instr. & Control Systems, Nov., 1969, pp. 81-84.

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