Direct-acting pressure sensor

Details Direct-acting pressure sensor Direct-acting pressure sensor

1976-04-27

1977-04-05

Woodiel, Donald O.

Measuring and testing

Speed, velocity, or acceleration

With means for retaining reading

73409, G01L 704

Patent

active

040154785

ABSTRACT:
A direct-acting pressure sensor operable in the low-pressure range and including a sub-assembly constituted by inner and outer concentrically-arranged curved springs anchored at one end in a socket to define a pressure region therebetween, within which is disposed a flexible bladder forming an internal pressure chamber communicating with the socket, the springs being joined at their free end to form a tip whose travel is indicative of the pressure of fluid applied to the sensor through said socket. The bladder which is preferably fabricated of reinforced elastomeric material is bonded to the springs to avoid slide friction therebetween and thereby minimize hysteresis.

REFERENCES:
patent: 3732733 (1973-05-01), Schmaus

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