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System and method of real-time monitoring of accelerated aging of electric light source

A real-time monitoring system and accelerated aging technology, which is applied in the direction of measuring devices, lamp testing, and optical performance testing, can solve the problems of decreased test accuracy and easy failure, and achieve the effects of reducing manual intervention, ensuring accuracy, and improving service life

Active Publication Date: 2013-11-20
HKUST LED FPD TECH R&D CENT AT FOSHAN
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AI Technical Summary

Problems solved by technology

[0009] 2. The photometer of the current aging test equipment, after a period of time, not only the test accuracy decreases, but it is easy to fail

Method used

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  • System and method of real-time monitoring of accelerated aging of electric light source
  • System and method of real-time monitoring of accelerated aging of electric light source
  • System and method of real-time monitoring of accelerated aging of electric light source

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Embodiment Construction

[0031] Such as figure 1 As shown, this embodiment discloses a real-time monitoring system for accelerated aging of electric light sources. The system includes a high-temperature test chamber 1 providing a high-temperature working environment, a transparent observation plate 2, a light-shielding sealing cover 3, and a photometric probe 4 for collecting electric light sources. A photometer 5 of optical parameters, a test seat 6 for arranging an electric light source, a switch control panel 7, a data collector 8 and an industrial computer 9 for controlling the work of other equipment in the system and performing relevant signal processing, the optical parameters include Illuminance, color coordinates and color temperature.

[0032]The test seat 6 is placed inside the high-temperature test chamber 1, and the electric light source to be tested is installed on the test seat 6. The test seat 6, the switching value control board 7, and the data collector 8 are interconnected through w...

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Abstract

The invention belongs to the field of test technologies of an electric light source, and particularly discloses a system and a method of real-time monitoring of accelerated aging of the electric light source. The system is characterized in that a transparent observation board is arranged on the sidewall of a high-temperature test chamber, a shading sealing cover is arranged at the outer side of the transparent observation board, and a luminous intensity probe of a photometer is arranged in the shading sealing cover outside the transparent observation board; an industrial personal computer is capable of judging whether the electric light source breaks down or not according to a working voltage signal or a working current signal of the electric light source collected by a data collector, and recording a time point of the fault of the electric light source, and an electric signal and an optical signal which are collected at the time point by the photometer and the data collector. The method mainly comprises an aging test stage and a parameter test stage which are alternatively preformed. According to the invention, a running status, in particular a status at the fault occurrence point, of the electric light source in an aging test process can be monitored in real time, so that early poor samples are removed, life evaluation is made, and accuracy of measurement of the photometer and service life of the photometer can be prolonged.

Description

technical field [0001] The invention belongs to the technical field of electric light source testing, and in particular relates to a real-time monitoring system and method for accelerated aging of electric light sources. Background technique [0002] In the electric light source lighting industry, the traditional electric light source life test is to ignite the product under normal working conditions, and calculate its life according to the half failure time or the light decay of the electric light source. Since the life of electric light sources generally ranges from thousands to tens of thousands of hours, the traditional detection method has the disadvantages of long cycle and low benefit. At present, the industry generally adopts increasing the working environment temperature of the electric light source to carry out the constant temperature stress accelerated life test. The test method is to put the electric light source that is powered on and bake it in a high-temperat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D21/02G01R31/44G01M11/02
Inventor 苏佳槟李世玮
Owner HKUST LED FPD TECH R&D CENT AT FOSHAN
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