Ultraviolet imager calibration device and method based on multidirectional light path switching wheel

Abstract

The invention discloses an ultraviolet imager calibration device and method based on a multidirectional light path switching wheel, the device comprises a multidirectional light path switching device and the multidirectional light path switching wheel located in a shell, the multidirectional light path switching wheel is designed with a plurality of light paths which are uniformly and equally divided, and the multidirectional light path switching wheel comprises a spectroscope, a plurality of attenuation slices, a straight-through light path and a reserved light path; the motor is fixedly connected with a central shaft of the multidirectional light path switching wheel, the multidirectional light path switching wheel is driven by the motor to rotate, and a needed light path is rotated to the position right facing the light inlet; when ultraviolet light passes through the light path of the multidirectional light path switching wheel and then is emitted from the straight light outlet, the straight light connecting pipe is connected with the ultraviolet imager. When ultraviolet light passes through the light path of the multidirectional light path switching wheel and then is emitted from the light splitting light outlet, the ultraviolet light enters the collimator through the light splitting connecting pipe and then enters the ultraviolet imager. And the ultraviolet imager takes a picture and stores the picture, and exports a corresponding picture to the upper computer for picture analysis.

Description

technical field [0001] The invention relates to an ultraviolet imager calibration technology, in particular to an ultraviolet imager calibration device and method based on a multidirectional optical path switching wheel. Background technique [0002] Partial discharge detection by UV imager is a highly sensitive and effective detection technology for discovering potential insulation defects of high-voltage power equipment. With the deepening of my country's power system condition maintenance work, the application of UV imager partial discharge detection technology in high-voltage electrical equipment (switch cabinets, cables and power transformers, etc.) has become more and more extensive. Especially for transformers, this technology has become the most important online detection method. At this stage, it has entered the stage of large-scale promotion and application nationwide, and has formulated relevant technical standards and specifications for partial discharge detectio...

AI Technical Summary

Problems solved by technology

In order to complete the relevant test content and meet the technical specifications, it is necessary to design different calibration components, and manually replace the test device to perform calibration of different performances. The time is slow and the cost of the test is high, resulting in a decrease in calibration accuracy.

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