How to choose water-cooled xenon lamp or air-cooled xenon lamp test chamber?

Xenon lamp test chamber is widely used to test materials and products of light stability and anti-aging, because the xenon arc lamp is very close to the complete spectrum including ultraviolet (UV), visible light and infrared (IR) solar spectrum. In order to obtain accurate and reproducible test results, all photostability or aging performance tests must control the quality of the light. Changes in light intensity will affect the rate of material damage. Changes in the energy distribution of the surface spectrum will affect the degradation of the material speed and type.

In 1918,appeared the world's first rotating drum xenon lamp aging test chamber, which uses a carbon arc lamp as a light source, light source or lamp placed vertically in the instrument center, surrounded by a filter system. The test specimen was mounted facing the light source and rotated like a conveyer belt around the center lamp. Since the first World War, this chamber has also been improved, but the basic design principle has not changed. The most common test chamber lamp cooling system using water cooling, this type of test chamber is called "water-cooled xenon arc chamber."

In recent years, the emergence of a new type of static sample placement xenon lamp chamber, in the top of the test room installed one or more air-cooled xenon lamp. In this system, the filter is flat and placed in the lower part of the lamp tube with a reflector system on the top and side of the chamber to enhance the uniformity of the irradiance. The test sample is mounted on a sample tray underneath the lamp vessel. The tray is slightly tilted at a small angle to allow water flow, and this type of chamber is called "air-cooled xenon arc chamber".

Regardless of the type of chamber, there are control systems that control the intensity of light "irradiance", temperature and relative humidity, except for the way the lamp cools and the sample area. The water-cooled xenon arc test chamber sampler area is the fixture, The sample area of the air-cooled xenon arc test chamber is pallet-like and is suitable for any regular and irregular sample items.

Paint, paint, rubber, plastic, adhesives, fabrics and other industrial sample can be sliced to do the test, suitable for selection of water-cooled xenon arc test chamber. Automotive, cosmetics, universities, research and other units of the shape of the test items are not fixed, suitable for air-cooled xenon arc test chamber.