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

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 ...

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

Images