Helmet display

A helmet-mounted display and image intensifier technology, which is applied in the direction of testing dielectric strength, can solve problems such as weak strength, low accuracy, and small corona discharge targets, and achieve the effects of being easy to carry, avoiding losses, and improving detection accuracy

Inactive Publication Date: 2014-05-28
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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Problems solved by technology

[0005] Traditional power transmission and transformation line inspections mainly use far-infrared telescopes, infrared cameras or manual visual inspections. However, the target of corona discharge is small and weak, making visual observation difficult, and sunlight contains strong infrared rays. , the accuracy of observation with an infrared telescope is low, and the response speed is slow. It is difficult to detect corona in time by using the above method, and then the power system cannot be maintained in time, resulting in unavoidable losses.

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Embodiment Construction

[0029] As mentioned in the background technology section, it is difficult to detect the corona phenomenon in time using the observation methods in the prior art. The inventors of the present invention have found that the reason for the above problems is that only a small amount of corona discharge can be generated in the initial stage. The amount of photons, that is, the luminous intensity is very weak, which makes it difficult to observe with the naked eye at the initial stage of corona discharge. When the corona discharge can be seen with the naked eye, the damage to electrical equipment is often serious. In addition, using infrared telescopes and infrared Although infrared devices such as cameras can also detect corona faults, due to the strong solar radiation, that is, the images detected by infrared devices contain a strong infrared background, which makes it difficult to detect corona phenomena in the infrared band. What the infrared device actually detects is the heating...

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Abstract

The invention discloses a helmet display, which is applied to corona detection. The helmet display comprises an ultraviolet object lens, a solar-blind ultraviolet image intensifier, an ultraviolet optical filter, an optical fiber image transmission beam, an eyepiece and a spectroscope, wherein the ultraviolet object lens is used for picking up an optical signal of corona; the solar-blind ultraviolet image intensifier is connected with the ultraviolet object lens; the ultraviolet object lens is imaged on the detection surface of the solar-blind ultraviolet image intensifier; the ultraviolet optical filter is positioned between the ultraviolet object lens and the solar-blind ultraviolet image intensifier; the spectroscope is connected with the eyepiece; an included angle is formed between the spectroscope and an optical axis of the eyepiece; light reflected by the spectroscope enters human eyes; and a virtual image seen by the human eye and the corona are positioned at the same azimuth. The helmet display can be used for finding the corona phenomenon at night in time and can be worn when a power system is maintained so as to greatly avoid the loss of the power system; and the helmet display has the advantages of high detection efficiency, convenience in carrying, high accuracy and fewer influences from an outside environment.

Description

technical field [0001] The invention relates to the manufacturing technology of the head-mounted display, in particular to a head-mounted display used for corona detection. Background technique [0002] In recent years, my country's economy has continued to develop at a high speed and steadily, and the scale of the power system has also continued to expand. With the implementation of my country's west-to-east power transmission plan, the transmission voltage level has gradually increased, and 500kV transmission lines and substations have been settled in various parts of the country. Ultra-high voltage Power transmission and transformation systems are widely used, and it is even more important to maintain their safe and reliable operation. Corona discharge will not only seriously affect personal and equipment safety, but also cause a large amount of power loss. Therefore, timely and accurate detection of the location and strength of corona discharge will facilitate the mainten...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/12
Inventor 赵顺龙张晓宏姜根山
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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