A photoelectric switch test dark box

CN224456963UActive Publication Date: 2026-07-03THE 718TH RES INST OF CHINA STATE SHIPBUILDING CORP

Patent Information

Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner: THE 718TH RES INST OF CHINA STATE SHIPBUILDING CORP
Filing Date: 2025-03-20
Publication Date: 2026-07-03

AI Technical Summary

Technical Problem

Existing photoelectric switch testing methods cannot accurately measure the irradiance of the light source, resulting in inaccurate testing and low automation levels, failing to meet the requirements for high precision and batch inspection.

Method used

A photoelectric switch testing dark box was designed. By adjusting the distance between the light source and the photoelectric switch and the distance between the illuminometer and the light source, and by controlling the power of the light source with a PWM modulation circuit, the irradiance of the light source can be accurately adjusted and measured. Combined with dedicated equipment and an automated testing system, the testing process can be completed automatically, thereby achieving quality control of the photoelectric switch and the testing equipment.

Benefits of technology

It enables high-precision quantitative testing of photoelectric switches, supports automated and batch testing, improves the accuracy and efficiency of testing, and adapts to application scenarios with different optical conditions.

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Abstract

The utility model discloses a photoelectric switch test dark box belongs to photoelectric test technical field, including box, distance adjusting rack, lux meter, light source and test board card, the box is closed structure, the light source sets up on distance adjusting rack, the photoelectric switch of setting up to be measured is on test board card, and the window of the light window of photoelectric switch to be measured and the probe of lux meter is opposite, and with the horizontal plane of light source is the symmetrical face and is arranged symmetrically up and down, and test board card and lux meter are approached or separated along the vertical direction through distance adjusting rack, and lux meter exports irradiance to external test system through test board card, the utility model discloses through adjusting the distance between light source and photoelectric switch, the distance between light source and lux meter adjusts irradiance to realize photoelectric switch qualitative test and quantitative test, is favorable to the quality control and new product development of photoelectric switch, and according to specific optical condition satisfies different application scene.

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