Temperature in Weathering Test: Measurement & Calibration


 The materials and products commonly used in our daily lives, such as textiles, plastics, leather, coatings, building materials, etc., will age over time due to comprehensive damage caused by factors such as light exposure, heat and cold, wind and rain, bacteria, etc. These factors work together to cause chemical and physical microscopic changes in materials, such as discoloration, reduced strength, structural damage, etc. This process is called weathering. The ability of a material to resist these damages is called weathering property.

Why is Temperature in Weathering Test So Important?

In the actual research and producing process, in order to evaluate the weathering property of a material, the current method is usually to conduct laboratory accelerated weathering tests, mainly simulating the three basic factors of light, temperature, and moisture. Among them, temperature is a key factor affecting the rate of photoaging:
1) An increase in ambient temperature will accelerate the rate of chemical reactions;
2) Weathering is a surface effect, and the performance of the sample, such as color and structure, will affect the surface temperature of the sample, thereby affecting the aging rate;

Chamber Temperature

In laboratory accelerated photoaging tests, temperature simulation is divided into chamber temperature and sample surface temperature. Our Xenon Arc Weathering Testers, YG611M (rotating tray type) and YG611F (flat tray type), have a temperature control system mainly composed of a heater, temperature and humidity sensors, BPT/BST, and a controller. During the experiment, the temperature controller, based on the set temperature value, heats the air inside the chamber through heating elements. At the same time, the temperature sensor monitors the temperature inside the chamber in real time and feeds back the temperature signal to the controller. The temperature controller adjusts the power of the heating element based on feedback signals to maintain constant temperature inside the chamber.
Xenon Arc Weathering Tester in Our CompanyThe temperature of the test chamber is measured by a temperature and humidity integrated sensor installed on the inner wall of the chamber, and can be displayed in real time on the touch screen.
​Other articles you may be interested in：
Irradiance Controlling of Xenon Arc Tester
Xenon Arc Lamp Installation Conditions

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