Novel fiber high-voltage sensor
A high-pressure sensor, sensor technology, applied in instruments, fluid pressure measurement using optical methods, fluid pressure measurement, etc., can solve the problems of unavoidable noise interference and temperature drift, high maintenance costs, difficult deployment, etc., to achieve anti-electromagnetic The effect of strong interference, low processing cost and low power consumption
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[0028] Such as figure 1 , 2 As shown in 3, the new optical fiber high pressure sensor of the present invention includes pressure inlet 1, pressure source connector 2, base 3, housing 4, optical cable waterproof connector 5, sensing diaphragm 6, multi-mode optical fiber 7, SMA metal fiber ferrule 8 , Armored fiber optic jacket 9.
[0029] The sides of the SMA metal fiber optic ferrule 8 and the base 3 are sealed by evenly coating epoxy resin, and the bottom surface is connected by laser welding; the sensing diaphragm 6 is a square diaphragm with a cylindrical Fabry-Perot microcavity, and the SMA metal fiber plug The cores 8 are fixed by epoxy resin. Before fixing, the polarization low-coherence interference demodulation unit 18 is used to observe the alignment of the signal quality assurance diaphragm and the ferrule; the sides of the pressure source connector 2 and the base 3 are evenly coated with epoxy resin Glue seal, the bottom surface is connected by laser welding; the base ...
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