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Li Hui helps you analyze the difference between xenon lamp aging test chamber
2024/03/25
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<p>Li Hui helps you analyze the differences between xenon lamp aging test chamber and UV aging test chamber. The natural climate light aging test methods are usually divided into two types: * simulating UV aging, and the second simulating full sunlight aging.
The main reason for the widely used methods both domestically and internationally is that the results of natural climate aging experiments are more realistic, require lower costs, and are simple and convenient to operate. Although we can conduct natural climate aging tests anywhere, the most recognized testing site is Florida in the United States because of its abundant sunlight.
But the drawback of natural climate aging tests is that they require a long time, and testers may not have as many years to wait for the test results of a product.
1. UV lamp irradiation test method: UV lamp irradiation aging test uses fluorescent UV lamp to simulate the destructive effect of sunlight on durable materials. This is different from the xenon arc lamp mentioned earlier. Fluorescent ultraviolet lamps are similar in electrical principle to ordinary cold light fluorescent lamps for lighting, but can generate more ultraviolet light instead of visible or infrared light.
For different exposure applications, there are different types of lamps with different spectra to choose from. The UVA-340 lamp can simulate sunlight well in the main short wavelength ultraviolet spectrum range. The spectral energy distribution (SPD) of UVA lamps is very similar to the spectrum obtained from the solar spectrum at 360nm. UVB type lamps are also commonly used for accelerating artificial climate aging tests. It damages materials faster than UVA lamps, but its shorter wavelength energy output than 360 nm can cause deviation from actual test results for many materials.
2. The xenon arc radiation test method is considered a test that can simulate the entire solar spectrum, as it can generate ultraviolet, visible, and infrared light. Because of this, it is considered a widely adopted method in China and abroad. GB/T1865-1997 (equivalent to IS0113411:1994) provides a detailed introduction to this method. However, this method also has its limitations, namely the stability of the xenon arc lamp light source and the complexity of the experimental system it brings. The xenon arc lamp light source must be filtered to reduce unexpected radiation.
There are multiple types of filter glass available to achieve different irradiance distributions. The choice of glass depends on the type of material being tested and its intended use.
Changing the filter glass can alter the type of short wavelength ultraviolet light transmitted, thereby altering the speed and type of material damage. There are three types of filters commonly used: sunlight, window glass, and extended ultraviolet light (methods 1 and 2 mentioned in the national standard GB/T1865-1997 correspond to the first two types)</ P>
The main reason for the widely used methods both domestically and internationally is that the results of natural climate aging experiments are more realistic, require lower costs, and are simple and convenient to operate. Although we can conduct natural climate aging tests anywhere, the most recognized testing site is Florida in the United States because of its abundant sunlight.
But the drawback of natural climate aging tests is that they require a long time, and testers may not have as many years to wait for the test results of a product.
1. UV lamp irradiation test method: UV lamp irradiation aging test uses fluorescent UV lamp to simulate the destructive effect of sunlight on durable materials. This is different from the xenon arc lamp mentioned earlier. Fluorescent ultraviolet lamps are similar in electrical principle to ordinary cold light fluorescent lamps for lighting, but can generate more ultraviolet light instead of visible or infrared light.
For different exposure applications, there are different types of lamps with different spectra to choose from. The UVA-340 lamp can simulate sunlight well in the main short wavelength ultraviolet spectrum range. The spectral energy distribution (SPD) of UVA lamps is very similar to the spectrum obtained from the solar spectrum at 360nm. UVB type lamps are also commonly used for accelerating artificial climate aging tests. It damages materials faster than UVA lamps, but its shorter wavelength energy output than 360 nm can cause deviation from actual test results for many materials.
2. The xenon arc radiation test method is considered a test that can simulate the entire solar spectrum, as it can generate ultraviolet, visible, and infrared light. Because of this, it is considered a widely adopted method in China and abroad. GB/T1865-1997 (equivalent to IS0113411:1994) provides a detailed introduction to this method. However, this method also has its limitations, namely the stability of the xenon arc lamp light source and the complexity of the experimental system it brings. The xenon arc lamp light source must be filtered to reduce unexpected radiation.
There are multiple types of filter glass available to achieve different irradiance distributions. The choice of glass depends on the type of material being tested and its intended use.
Changing the filter glass can alter the type of short wavelength ultraviolet light transmitted, thereby altering the speed and type of material damage. There are three types of filters commonly used: sunlight, window glass, and extended ultraviolet light (methods 1 and 2 mentioned in the national standard GB/T1865-1997 correspond to the first two types)</ P>
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