Maintenance and upkeep methods for infrared thermometers
The main performance indicators of an infrared thermometer include spectral response, response time, repeatability, and emissivity. Fixed infrared thermometers are used in glass and ceramic industries, papermaking and packaging industries, various kiln temperature measurement applications, and chemical industries to measure the temperature of instruments and meters, thereby detecting the operating status of instruments and ensuring their normal operation.
There are several factors that can cause damage to online thermometers:
The first type: humid factors. In general, infrared thermometers are caused by factors such as moisture, rainwater, dew, etc. Dew formed by moisture is the main factor causing outdoor humidity. The harm caused by dew is greater than that of rainwater because it adheres to materials for a longer time, causing more severe moisture absorption. If the surface aging layer of the wood coating is removed by rainwater washing, the unaged inner layer is exposed to sunlight, resulting in further aging. The damage mechanism of composite materials caused by humid environments has been well studied in the simulation experiment of infrared thermometers. Taking the diffusion of moisture into carbon fiber epoxy resin laminates as an example, this paper illustrates the aging mechanism of composite materials under humid atmospheric conditions.
The second type: lighting factors. The structural composition of different products of infrared thermometers also affects the intensity of illumination. For example, those durable materials, such as plastics, coatings, and so on, will not experience severe aging when exposed to light. So we need to analyze what the material composition of the product equipment is.
The third type: High temperature factor: When the surrounding temperature rises due to high temperature, it will increase the intensity of light and the degree of damage. There is no direct chemical reaction between temperature and light, but there is a subtle connection between them. So when testing programmable infrared thermometer products, it is important to grasp the precise temperature usage range.
These three factors are crucial for the impact on product equipment, and any one of them can quickly shorten the lifespan of the thermometer.
Research on infrared thermometers has shown that the decrease in modulus of epoxy resin caused by water is reversible. When the external environment changes and water diffuses out, the film volume of the resin can almost return to its original value. However, for many processes of water absorption, the property changes caused by water are irreversible. Irreversible changes will lead to a significant reduction in the physical and mechanical properties of the material. At the same time, infrared thermometers can be programmed to simulate the humid atmospheric environment to detect the anti-aging properties of the material. So when operating an online thermometer, we also need to pay more attention to details in order to better utilize such instruments.
