PIEZOELECTRIC PRESSURE TRANSDUCER Russian patent published in 2014 - IPC G01L9/08 

FIELD: instrumentation.

SUBSTANCE: invention relates to precise instruments, particularly, to dynamic pressure transducers to be used in various branches of science and engineering. Proposed transducer comprises case with membrane to house sensitive element composed by piezo elements, current collector arranged between the latter and the base. Sensitive element is closed by thin-wall cup pressed to transducer base with force equal to total force of maximum possible static and dynamic pressure to be applied to said membrane. Cup sizes are defined in compliance with mathematical expression: $$h=(\mathrm{0,16}÷\mathrm{0,3})\frac{D}{2},$$ where h is cup height, D is cup OD. Cup bottom thickness rules out the membrane flexure at its centre.

EFFECT: higher precision, simplified design, netter performances.

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