The Advantages of Using Xenon Lamp Weather Resistance Test Equipment for Environmental Testing
The xenon lamp weather resistance test equipment uses a xenon arc lamp capable of simulating a full sunlight spectrum to reproduce the destructive light waves that exist in different environments. This equipment can provide corresponding environmental simulation and acceleration test for scientific research, product development and quality control. Today we will introduce the advantages of Xenon lamp weather resistance test equipment for environmental testing.
Firstly, the xenon lamp weather resistance test equipment can be used for the selection of new materials, the improvement of existing materials, or the evaluation of changes in the durability of materials after the composition has been changed. The device can well simulate changes in the exposure of the material to sunlight under different environmental conditions. The device measures the light resistance of the material by exposing the material to ultraviolet (UV), visible and infrared light. It uses a filtered xenon arc lamp to produce a full sunlight spectrum that best matches the sunlight. Xenon arc lamps with a reasonable filtration process are the best way to test the product's sensitivity to ultraviolet and visible light in the longer wavelength bands in direct sunlight or in sunlight passing through the glass. When you expose the product to direct sunlight outdoors, the time during which the product is exposed to maximum light intensity is a matter of hours. Even so, the most severe exposures only occurred in the hottest weeks of the summer.
Secondly, xenon lamp weather-resistant test equipment can speed up your testing process, because the equipment can expose your product 24 hours a day to sunlight equivalent to noon in the summer through program control. The exposure experienced was much higher than the outdoor exposure in terms of average light intensity and hours/days of light exposure. Thus, the test results can be accelerated. Because of long-term exposure to fluorescent, halogen, or other light sources, products placed in retail outlets, warehouses, or other environments also experience significant photodegradation.
Thirdly, the xenon lamp weather resistance test equipment can also simulate the reproduction of the destructive light generated in such a commercial lighting environment, and can accelerate the test process with higher intensity. The device uses a full-spectrum Xenon-arc lamp to simulate destructive light in sunlight, including UV, visible, and infrared light. Depending on the desired effect, the light of the xenon lamp is usually filtered to produce a suitable spectrum, such as the direct sunlight spectrum, the sunlight spectrum through the glass window, or the UV spectrum. Each filter produces a different distribution of light energy. Optical irradiance refers to the ratio of light energy radiated on a plane. The equipment must be able to control the irradiance of light in order to achieve accelerated testing and reproduce the test results. Changes in light irradiance can affect the rate at which material quality deteriorates, and changes in the wavelength of light (such as the spectral energy distribution) can affect the rate and type of material degradation at the same time. Irradiation of the device is equipped with a light-sensing probe, also known as the sun eye, a high-precision light control system that can compensate in time for degradation of the light energy caused by lamp aging or any other change. The sun's eye allows the selection of an appropriate light irradiance during the test, and can even select light irradiance equivalent to the noon summer sunlight. The sun eyetm can continuously monitor the irradiance in the irradiation chamber, and can precisely maintain the irradiance at the working set point by adjusting the lamp power. Due to long working hours, when the irradiance drops below the set value, a new lamp needs to be replaced to ensure normal irradiance. The life of the lamp depends on the level of irradiance used. The lamp life is typically 1000 hours. Lamp replacement is quick and easy. Long-lasting filters provide protection for the desired spectrum. In addition to performing photodegradation tests, Xenon lamp weather-resistant test equipment can also simulate the effects of outdoor moisture on material damage by adding moisture and water spray options. Moisture is also a major factor in the destruction of some materials. The higher the moisture content, the faster the destruction of the material. Humidity can affect the degradation of indoor and outdoor products, such as various textiles. This is because when the material tries to maintain a moisture balance with the surrounding environment, the physical stress on the material itself increases. Therefore, when the humidity range in the atmosphere is greater, the overall stress on the material is greater. The negative influence of humidity on the weatherability and colorfastness of materials has been widely recognized. The wet function of the device can simulate the effect of indoor and outdoor moisture on the material. The device provides relative humidity control, which is important for many moisture-sensitive materials, and many test protocols also require humidity control. The use of the water spray function greatly expands the climate conditions that the equipment can simulate. Due to frequent erosion from rain, the paint layer of wood, including paint and colorants, will appear to be corroded.This rain scouring action can wash off the paint layer with anti-degradation effect on the surface of the material, thereby directly exposing the material itself to the destructive influence of UV and moisture. The device's rain shower function can reproduce this environmental condition to enhance the relevance of some paint weathering tests. The spray cycle is completely controlled by the program and can be performed with or without a light cycle. In addition to simulating the degradation of materials caused by moisture, it can also effectively simulate temperature changes and rain erosion processes. Outer coatings on roofs, automotive parts, and metal buildings or components can experience sudden temperature changes. For example, hot summers cause the heat inside the material to build up, and sudden showers can quickly dissipate heat. This dramatic temperature change shock is a challenge and a test for many materials. The effect of this environmental condition on the material can be reproduced by the water spray function of the device. The infrared rays emitted from the lamp can reconstruct the heat accumulation process, while the cold water showers produce a dramatic temperature change. During the rain shower cycle, the temperature is not controlled. The water of the water circulation system uses deionized water (solids content less than 20ppm), with a tank water level display. Two spray heads are installed on the top of the studio. The sprayed water is recyclable and the spray pressure is between 0.12 and 0.15 Mpa. Adjustable. Equipment heating system uses far-infrared nickel-chromium alloy high-speed heating electric heater; high temperature, humidity, light completely independent system (not interfere with each other); temperature control output power is calculated by the microcomputer, in order to achieve high precision and high efficiency of the electricity efficiency . Equipment humidification system uses external boiler steam humidifier, with automatic water level compensation, water shortage alarm system, far-infrared stainless steel high-speed heating electric heating pipe, humidity control using P. I. D + S. S. R, the system with the channel coordination control.