SENSOR FOR PULSED PRESSURE OF LIQUID, GASEOUS AND MIXED MEDIA WITH NON-STEADY TEMPERATURE Russian patent published in 2012 - IPC G01L23/00 

FIELD: physics.

SUBSTANCE: sensor for pulsed pressure of liquid, gaseous and mixed media with non-steady temperature has a housing with a nozzle for inlet of the measured medium. The detecting element is in form of a multilayer measuring diaphragm and a separating diaphragm, whose centres and peripheral parts are rigidly connected. A strain-sensitive circuit with static thermal compensation elements is deposited onto the measuring diaphragm from the outside. The housing is put into a cover. The channel of the inlet nozzle is fitted, without spacing, with a multiturn auger-type swirler, the length of curvilinear channels ℓ_ks of which satisfies a given mathematical inequality.

EFFECT: minimising additional temperature error of measurements in case of thermal shock due to non-steady temperature of the working medium.

4 cl, 6 dwg