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System and method for detecting out-of-band rejection capability of ultraviolet imager

A technology of out-of-band suppression and ultraviolet imaging, which is applied in the direction of testing optical performance, etc., can solve the problems of unsuitable detection of out-of-band suppression performance of ultraviolet imagers, high personnel requirements, and high design and processing precision, so as to facilitate widespread application and environmental personnel The effect of low requirements and low detection environment requirements

Active Publication Date: 2020-03-27
ELECTRIC POWER RES INST OF STATE GRID ZHEJIANG ELECTRIC POWER COMAPNY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This technology is similar to the optical filter performance detection system. The light source includes ultraviolet, infrared and visible bands. However, the whole system uses two collimated light tubes and three optical path comparisons. Detection of out-of-band suppression performance of ultraviolet imager
[0009] In addition, there is a solution involving the use of optical filter combinations to detect optical filtering performance, but the detection objects can only be limited to light-transmitting optical components, and the detection system is complicated, the design and processing precision is high, and the test has high requirements for the environment and personnel. , and it is impossible to test the out-of-band suppression performance of the UV imager

Method used

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  • System and method for detecting out-of-band rejection capability of ultraviolet imager
  • System and method for detecting out-of-band rejection capability of ultraviolet imager
  • System and method for detecting out-of-band rejection capability of ultraviolet imager

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Experimental program
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Embodiment 1

[0042] This embodiment provides a detection system for the out-of-band suppression capability of an ultraviolet imager, such as Figure 1-2 As shown, it includes a light source 1, an integrating sphere 2, an optical power meter 3 and a calculation control system.

[0043]The light source 1 provides optical signals with continuous wavelengths in the 280-1100nm band, and the spectrum of the light source includes ultraviolet rays, visible light and infrared rays. The light source includes a solar simulator and two ultraviolet band LED light sources (wavelengths are 310 + 5nm, 365 + 5nm).

[0044] The integrating sphere 2 is provided with a light entrance 4 and two light exits 5, 6, the light entrance 4 is connected to the light source 1, one light exit 5 is used to connect with the device under test 7, and the other light exit Port 6 is connected to the optical power meter. The caliber of the light outlet 5 is greater than 50mm.

[0045] The light source passes through the i...

Embodiment 2

[0056] This embodiment provides a method for detecting the out-of-band suppression capability of an ultraviolet imager using the detection system described in Embodiment 1, which includes the steps:

[0057] 1) Turn on the device under test;

[0058] 2) Turn on the detection system, select the test standard, and after the light source is stable, place the optical power meter at one of the light outlets of the integrating sphere, and check the light source stability and light source curve through the optical power meter to ensure that the light source remains consistent during each detection;

[0059] 3) Place the device under test at the other light outlet of the integrating sphere; observe the response of the device under test to the light source signal and the number of photons;

[0060] 4) The verification processing unit selects the photon number evaluation standard according to the optical power meter data and the photon number value of the device, and evaluates the out-o...

Embodiment 3

[0063] This embodiment provides a method for using the detection system described in Embodiment 1 to measure the response performance of an ultraviolet sensor to sunlight.

[0064] The light source uses a xenon lamp close to sunlight and an ultraviolet LED as a light source. After passing through the integrating sphere, two paths of light are emitted, one for reference light and one for test light. The optical power meter measures the reference optical power, the UV sensor to be tested is placed at the light outlet of the test light, and the rear end of the sensor outputs a response electrical signal.

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Abstract

The invention discloses a system and a method for detecting the out-of-band rejection capability of an ultraviolet imager. The detection system comprises a light source, an integrating sphere, an optical power meter and a calculation control system, wherein the integrating sphere is provided with a light inlet and two light outlets, the light inlet is connected with the light source, one light outlet is used for being connected with equipment to be tested, and the other light outlet is connected with the optical power meter; the calculation control system comprises a light source control unit,an optical power meter data acquisition, processing and display unit and a verification processing unit. And the verification processing unit is used for evaluating the out-of-band rejection capability of the to-be-tested equipment by analyzing the photon number of the to-be-tested equipment and the data of the optical power meter and selecting a photon number evaluation standard. The detection system is simple in structure, low in detection environment requirement, low in detection personnel requirement and convenient to widely popularize and apply.

Description

technical field [0001] The invention belongs to the detection field of ultraviolet imagers, in particular to a detection system and method for the out-of-band suppression ability of ultraviolet imagers. Background technique [0002] In recent years, more and more ultraviolet imagers have been applied to the inspection work of power equipment. The inspection work of power equipment is mostly carried out during the daytime. It is necessary for the equipment to have Good suppression capability means good out-of-band suppression capability. [0003] The out-of-band suppression ability is an important index to evaluate the performance of the ultraviolet imager. The stronger the out-of-band suppression ability, the stronger the anti-interference ability of the equipment to sunlight, and the better the detection effect of corona discharge. [0004] At present, there are certain differences in the nominal performance parameters and monitoring indicators of ultraviolet imagers from ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M11/02
CPCG01M11/02
Inventor 骆丽杨青龚金龙王异凡顾冰陶定峰王尊王一帆
Owner ELECTRIC POWER RES INST OF STATE GRID ZHEJIANG ELECTRIC POWER COMAPNY
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