Resonant tuning fork liquid density sensor with piezoelectric actuation and piezoelectric detection
A piezoelectric exciter and liquid density technology, which is applied in the field of high-precision resonant quasi-digital sensors and high-precision online measurement of liquid density. problem, to achieve the effect of low power consumption, simple structure, simple excitation and detection methods
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[0021] Such as Figure 1-6 As shown, the resonant tuning fork liquid density sensor for piezoelectric excitation and piezoelectric detection of the present invention is composed of a tuning fork body 1 , a solid support body 2 , a piezoelectric actuator 3 , a piezoelectric vibration pickup 4 , and a temperature sensor 5 .
[0022] Such as figure 2 , Figure 4 , Figure 5 , Image 6 As shown, the piezoelectric actuator 3 , the piezoelectric vibration pickup 4 and the temperature sensor 5 are all mounted on the solid support 2 . The piezoelectric actuator 3 and the piezoelectric vibration pickup 4 are symmetrically mounted on the solid support 2 perpendicular to the direction of the tuning fork 1, and the distance from the central axis of the solid support 2 is 0.5 times the inner diameter of the solid support.
[0023] Such as image 3 As shown, the structures of the tuning fork body 1 and the solid support body 2 are integrally processed, and an undercut groove with a ra...
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