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Dual-spectrum corona detection catadioptric panoramic optical system

A catadioptric panoramic and optical system technology, applied in optics, optical components, and testing dielectric strength, etc., can solve the problems of time-consuming detection process, narrow detection range, small field of view, etc., to achieve real-time monitoring and reduce personnel Burden, wide detection range effect

Inactive Publication Date: 2012-09-19
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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Problems solved by technology

[0006] The purpose of the present invention is to overcome the defects of small field of view, narrow detection range, time-consuming, labor-intensive, and poor real-time performance of the current dual-band corona detection system, and propose a dual-spectral corona detection catadioptric panoramic optics system

Method used

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  • Dual-spectrum corona detection catadioptric panoramic optical system
  • Dual-spectrum corona detection catadioptric panoramic optical system
  • Dual-spectrum corona detection catadioptric panoramic optical system

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Embodiment Construction

[0018] The present invention will be described in further detail below in conjunction with the embodiment given with accompanying drawing.

[0019] refer to figure 1 , a dual-band corona detection catadioptric panoramic optical system, comprising a UV / visible beam splitter 3 coated with a reflective UV splitting film, and a visible light relay arranged along the optical axis of the transmitted light path of the UV / visible beam splitter 3 Mirror 6 and visible light detector 7, the ultraviolet relay mirror 4 and the ultraviolet detector 5 that are arranged along the reflection optical path optical axis of ultraviolet / visible light beam splitter mirror 3, also arrange a in front of described ultraviolet / visible light beam splitter mirror 3 A coaxial mirror group consisting of a concave mirror 1 with a central hole and a convex mirror 2; the light beam entering the entrance pupil of the optical system from the off-axis field of view without obstruction is first incident on the co...

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Abstract

The invention relates to an optical system of corona detection technology, which is a dual-spectrum corona detection catadioptric panoramic optical system in particular applicable to 240nm-280nm of ultraviolet spectrum and 460nm-610nm of visible light spectrum, comprising an ultraviolet / visible light beam splitter coated with a beam-splitting film for reflecting ultraviolet, a visible light relaylens and a visible light detector which are arranged along the transmitted optical path optical axis of the ultraviolet / visible light beam splitter, an ultraviolet relay lens and ultraviolet detectorwhich are arranged along the reflective optical path optical axis of the ultraviolet / visible light beam splitter; and a coaxial reflector group which is composed of a concave mirror and a convex mirror with a central hole is arranged in front of the ultraviolet / visible light beam splitter. The system has the advantages of large field view of 360 degrees being multiplied by 45 degrees to 90 degrees, wide detection range and improvable detection efficiency, can realize the real-time monitoring of the power transmission device fault, and can reduce the operational burdens of personnel.

Description

technical field [0001] The invention relates to an optical system of corona detection technology, which is a large field of view catadioptric panoramic optical system suitable for 240nm-280nm ultraviolet spectrum and 460nm-610nm visible spectrum. Background technique [0002] The distribution of electric field intensity has been fully considered in the design, manufacture, installation and maintenance of power systems and power equipment. Under normal circumstances, corona within the allowable range will not affect the system. If there are defects in the equipment, such as: poor contact, broken wires, broken porcelain bottles, poor grounding, fatigue overload, dirty insulators, etc., it will cause local electric field distortion. When the electric field strength on the surface of high-voltage components exceeds the breakdown of air When the strength is high, corona discharge will occur on the surface of high-voltage components. Corona discharge on high-voltage electrodes ca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B17/08G02B5/10G01R31/12
Inventor 金春水王丽萍
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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