Xenon Lamp Aging Test Chamber, Black Panel Thermometer and Black Mark Thermometer

The xenon lamp aging test chamber is the main testing equipment for material aging testing. Our company Qisnun Precision Mechanical and Electrical Technology Co., Ltd. can provide it. Customers in need are encouraged to inquire. The xenon arc lamp aging test simulates the phenomenon of photoaging of materials in the natural environment. Aging factors include temperature, humidity, light and water. The test chamber must also be equipped with temperature monitoring and measuring devices. Temperature measuring devices include black panel thermometers and black mark thermometers.

The blackboard thermometer (BPT) is a relatively old thermometer that has been in use for decades, and many standards continue to be used. be used. A commonly used chart thermometeris made of a stainless steel plate. The side of the stainless steel plate facing the light source is coated with black matte paint. This black should be able to absorb 90% of the total incident light flux in a wavelength of 2500 nm. Flat panel temperature measurement is carried out via a black-coated rod-shaped bimetallic disc sensor or measuring resistance sensor located in the center of the backlit surface of the flat panel and firmly connected to the surface exposed black.

Black Mark Thermometer, the full name is Black Standard Thermometer, or BST for short. A black standard thermometer is essentially a modified blackboard thermometer. Its structure and testing principle are basically the same as traditional chart thermometers. The main body of the black mark thermometer is also a stainless steel plate and the surface facing the light sourceuse is uniformly covered with a layer of black paint resistant to aging. This black can absorb 95% of light with wavelengths below 2500 nm. A platinum resistance sensor is mounted on the backlight to measure the temperature of the blackboard. At the same time, a detailed design is added to the backlight surface. This backlight surface is also 5mm thick and has a grooved surface for close contact, leaving a gap of approximately 1mm. At the same time, it is also necessary to ensure that the length and width of the entire base are large enough to ensure that there is no heat transfer through metal contact between the metal plate and the frame sample when installing the black mark thermometer on the sample. frame and there is no heat transfer by metallic contact between the metal frame or the support of the sample frameonnage and the thermometer. There should be a spacing of at least 4mm between the edges of the metal plates.

Generally speaking, the temperature measured by a black-mark thermometer is higher than that measured by a black-panel thermometer. The black mark thermometer is considered to be more suitable for measuring the exposure temperature of dark-colored polymer samples with poor thermal conductivity, while the black panel thermometer It has also been gradually replaced.

Textile Testing Shanghai Fanbiaog Technology Co., Ltd., as an enterprise integrating R&D, manufacturing, sales, training and service, is committed to putting more testing instruments in the market and to provide textile, leather, combustion testing instruments and automobile interior materials in the long term. , environmental climate aging, masks and protective clothing, etc. can alsomay be customized to meet non-standard requirements. Targeted testing can be carried out according to customer requirements before purchase to ensure that the purchased instruments are suitable.

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