FIELD: physics.
SUBSTANCE: proposed device comprises metal cylinder arranged in controlled fluid flow to accommodate internal U-shape conductor with generator connected thereto to excite oscillations in aforesaid cylinder, and unit to measure resonance frequency of aforesaid cylinder. Note here that frequency-modulated oscillation generator is connected to one end of said cylinder via high-frequency transformer, while resonance frequency metre is connected to opposite end of said cylinder via second HF transformer.
EFFECT: measurements may be made in removing electronic unit from object to be measured, reduced influence of cable parametres on measurement error.
1 dwg
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