Local discharging sensor combining graphene diaphragm with micro optical fiber interference cavity and detection method based thereon
A technology of partial discharge detection and graphene film, which is applied in the direction of testing dielectric strength, can solve the problems of being easily affected by temperature and low detection sensitivity, achieving strong anti-electromagnetic interference ability, optimizing structural parameters, and ensuring long-term reliability Effect
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[0023] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0024] as attached figure 1 Shown is a schematic structural diagram of a partial discharge sensor combining a graphene diaphragm and a microfiber interference cavity involved in the present invention, which includes: a tunable laser 1, a laser wavelength control module 2, an optical fiber circulator 3, a single-mode optical fiber 4, a micro Optical fiber interference cavity 5, photodetector 6, signal line 7, filter 8, data acquisition card 9; the laser light emitted by the tunable laser 1 passes through the optical fiber circulator 3 and is transmitted by the single-mode optical fiber 4 to the The micro-fiber interference ...
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