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Irradiance Control Analysis of Xenon Lamp Aging Tester

2023-01-03

The irradiation manipulation of instruments for testing the natural environment, such as a xenon lamp aging tester and an ultraviolet aging tester, is an important operation in the experiment. The R&D technical engineer of QINSUN Instruments Co., Ltd. gives the following explanation about the manipulation of the radiation. Every customer helps.

The measuring point of 340 nm is generally used in accelerated high and low temperatures. As for the high and low temperatures of outdoor performance index products, the medium and short wave ultraviolet region has a source of risk. The 340nm control requires a UV filter with a weapon filter, which only allows a narrowband base based on 340nm. Usually thisa rationalized measuring point for industrial coatings, plastics, pitched roof materials, etc. A large number of measuring points for the irradiance is 0.35 or 0.55 W/㎡/nm.

The measuring point of 420 nm Wedrdt generally used for in-room photostability testing of raw materials with window filter service facilities. For 420nm control, the ultraviolet sensor switch must have a filter system that allows only the narrowband base of ultraviolet light at 420nm as a control point. The general purpose of this system test is generally materials that are mainly damaged by long-wave ultraviolet rays and precision light. Such as dyes and pigments in textile products, printing paper and ink printing. The wide irradiance set point simulated in the room is 1.10 W/㎡/nm.

The xenon lamp aging tester is generally equipped with 340nm or 420

Lab

nm narrowband radiation Fully automatic automatic control system. According to the specifications and models of different xenon lamp aging machines. Some European test chambers may have ause fiber broadband TUV (fine ultraviolet, 300~400nm) or very fiber broadband precision irradiation sensor switch (280~800nm). Optical broadband sensors witches are not easy to respond to relatively small changes in ultraviolet light, and the sensitivity can cause problems for the main melt system driven by the shortwave ultraviolet portion of the spectrum analyzer.

The xenon lamp aging tester has a fully automatic control system for the irradiation of the same feedback control circuit. It is recommended to remove the LED light tube in time to reduce the damage caused by aging of the LED light tube. Using a sensor switch that controls the irradiance at 340nm or 420nm further reduces the amount of change from the spectrum analyzer in a given region.

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