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Irradiation Check of Xenon Lamp Aging Tester

2023-01-03

The output of each xenon lamp decreases over time. Xenon arc testers compensate for this with a closed loop control system where the operator can preset irradiation levels and use radiation sensors in the test chamber to measure light. When aging

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causes fading of the light source, automatic compensation can be achieved by reducing the power of the xenon lamp. enlarge .

According to the engineer of QINSUN Instruments Co., Ltd. the light intensity can theoretically be controlled anywhere in the spectrum of the xenon lamp, but only through a pair. The irradiation is typically in the region of the spectrum where the material is sensitive (eg where degradation is expected). In addition, radiation control points also vary with industries and applications.

340nm transistors are widely used in accelerated aging tests and vFor aging tests of durable outdoor products, the short-five UV range is considered dangerous. This 340nm chip must be equipped with a UV sensor that can pass through a narrow band of 340nm. Generally ideal control points for paints, plastics, roofing materials, etc. The commonly used radiation control point is 0.35 or 0.55 W/m/nm at 340 nm.

The 420nm checkpoint is typically used in conjunction with window glass filters for testing the light stability of indoor materials. To control 420nm, the UV sensor must be equipped with a filter that can only pass through the center of 420nm. The objects tested by this system are usually damaged by long wave ultraviolet light and visible light. For example, knitwear, paper, ink, etc. The commonly used indoor radiation setpoint is 1.10 W/㎡/nm@420nm.

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