High pressure transducer

Measuring and testing – Fluid pressure gauge – Mounting and connection

Patent

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Details

73706, 73723, 73754, G01L 708, G01L 908

Patent

active

047350911

ABSTRACT:
A transducer, particularly for ballistic high pressure measurements, comprises an assembly body, with a shoulder sealing section and a sensor member, which can be received in a recess in the assembly body. The assembly body can be screwed into a component, e.g. a gun barrel, the measurement area on the sealing section being sealed. The assembly body has a tubular extension extending beyond the sealing section, which extension encompasses the sensor member on a cylindrical fitting face. The high sealing forces required for sealing the measurement area are kept remote from the sensor member. The measuring sensitivity of the transducer is therefore independent of the prevailing tightening torques. A cylindrical gap between the sensor member and assembly body provides additional insulation between the sealing forces and the prestress forces prevailing in the sensor member. The cylindrical gap is sealed against the pressure medium by a force fit or weld between the assembly body and the sensor member. A reception space can be provided ahead of the diaphragm section of the sensor member, which reception space can be formed by an annular section projecting from the diaphragm section, and can be provided with replaceable thermal and erosion protection devices.

REFERENCES:
patent: 3857287 (1974-12-01), Sonderegger
patent: 4399706 (1983-08-01), List et al.
patent: 4519254 (1985-05-01), Sonderegger et al.
patent: 4559821 (1985-12-01), Engeler et al.

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