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Hand-held ultraviolet standard source

A standard source, hand-held technology, applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems that the number of detected photons cannot be uniformly quantified, and the parts are difficult to adjust, so as to promote the standardization of ultraviolet inspection work, light weight, and convenient The effect of uniform quantitative comparison

Pending Publication Date: 2019-03-01
EXAMING & EXPERIMENTAL CENT OF ULTRAHIGH VOLTAGE POWER TRANSMISSION COMPANY CHINA SOUTHEN POWER GRID
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  • Abstract
  • Description
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to make up for the deficiencies in the prior art, and propose a hand-held ultraviolet standard source to solve the problem that the number of photons detected by different ultraviolet imaging equipment cannot be uniformly quantified, and the parts of the ultraviolet standard source are complicated and difficult to adjust question

Method used

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  • Hand-held ultraviolet standard source

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Embodiment Construction

[0012] Embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0013] The handheld ultraviolet standard source of the present invention is composed of a light source module, an integrated circuit, a power meter and an auxiliary module. The light source module contains UV LEDs and attenuators. The integrated circuit includes a constant current source circuit, a control circuit, and a display / calculation circuit. Auxiliary modules include battery and touch screen. The power meter is an accessory of a hand-held UV standard source, which is used for self-calibration of the source. The purpose of self-calibration is to eliminate the influence of production batches, service life and on-site temperature and humidity on the output photon number of UV LEDs, so as to ensure the accuracy of the UV standard source calibration function.

[0014] The ultraviolet LED is small in size and light in weight, with a service life of more tha...

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Abstract

The invention discloses a hand-held ultraviolet standard source. The photon numbers obtained by different ultraviolet imaging devices are converted to obtain a conversion coefficient, and the photon numbers obtained by different ultraviolet imaging devices can be uniformly quantified through the coefficient, thereby enabling the photon numbers not to be limited by the devices and the calculation modes of the devices, facilitating the unified quantification and comparison of the ultraviolet detection results, and promoting the standardization of the ultraviolet routing inspection work. Moreover, the standard source is small in size, is light in weight, and brings convenience to the production personnel for carrying out the onsite routing inspection and verification.

Description

technical field [0001] The invention relates to the technical field of electric detection, in particular to a hand-held ultraviolet standard source. Background technique [0002] Different forms of discharge such as corona, tip discharge or even arc and flashover often occur outside high-voltage power equipment. During the discharge process, different signals such as light waves, sound waves and ultraviolet rays will be radiated. The ultraviolet detection equipment can be used to receive the ultraviolet signal with a wavelength of 240-280nm generated by it, and the position and intensity of the discharge can be determined by analyzing, processing and detecting the number of photons in it. [0003] At present, domestic ultraviolet detection technology is becoming more and more mature, and the demand for corresponding ultraviolet detection equipment is also gradually increasing. On the one hand, in the domestic power industry, a company often purchases UV imagers from differ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R35/00G01J1/08
CPCG01J1/08G01R35/007
Inventor 王言黎建平楚金伟邓军王竣曾航
Owner EXAMING & EXPERIMENTAL CENT OF ULTRAHIGH VOLTAGE POWER TRANSMISSION COMPANY CHINA SOUTHEN POWER GRID
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