Acoustic fluid sensor
A fluid sensor and acoustic sensing technology, which is applied in the direction of transmitting sensing components by wave/particle radiation devices, can solve the problem of low quality factor
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[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Here, the exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not to limit the present invention.
[0025] Principle of invention
[0026] During the experiment, a load fluid is injected into the hollow cylindrical shell. When a plane simple harmonic wave of a certain eigenfrequency is incident on the finite-length hollow cylindrical shell perpendicular to the axis, the load fluid (standard fluid or to-be-measured fluid) inside the hollow cylindrical shell Fluid) excites Scholte–Stoneley circular waves orbiting along the hollow cylindrical shell. When the phase velocity of the Scholte–Stoneley circular wave satisfies the condition of phase matching, the Scholte–Sto...
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