Suspension type self-vibration suppression differential flow sensor
A flow sensor, suspended technology, applied in the field of flow sensors, can solve the problems of limited ability to resist pipeline vibration, weak anti-interference ability of flow sensors, and large noise mixed into the output signal, achieving a large range, strong anti-interference, The effect of high reliability
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[0009] refer to figure 1 , the suspension type self-damping differential flow sensor includes detection units symmetrically fixed on both sides of the flat plate 6, each detection unit includes a casing 5, in order to obtain a more stable signal, a semi-cylindrical casing is generally used, and the casing 5 has a A through hole 7 parallel to the axis m-m of the plate, the through hole 7 communicates with the axial outlet hole 4 of the plate through a channel 8, the connecting ends of the through hole 7 are sealed by elastic diaphragms 1 respectively, and there are two piezoelectric ceramics in the through hole Sheet 3, the size, quality and sensitivity coefficient of the two piezoelectric ceramic sheets are the same, one end of the two piezoelectric ceramic sheets is welded with the elastic diaphragm 1 respectively, and the other end is connected with the metal block 2 arranged between the piezoelectric ceramic sheets welding. In this way, the metal block 2 and the two piezoe...
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