Ceramic products need to be fired in a specific firing system in a roller kiln, and a reasonable firing system is the fundamental guarantee for obtaining good products. The firing system includes temperature system, pressure system, and atmosphere system, among which temperature system is more critical. The temperature monitoring of the roller kiln mainly relies on the temperature data reflected by the thermocouples installed along the kiln top or side.

Roller kilns are generally divided into pre heating zone, firing zone, and cooling zone. The temperature detection of the firing zone mainly determines the high temperature of the firing zone and the length of the high temperature interval, which is the time that the product stays at high temperature. The higher temperature of the firing zone is the higher temperature point of the ceramic, which directly affects the product's firing and overburning. The length of the high temperature zone affects the length of the insulation time, which also affects the quality of the product. Therefore, controlling the firing temperature is the key to ensuring product quality. Sometimes the temperature indicated by the thermocouple reaches the temperature point at which the product is fired, but due to different insulation times, the product can also have significant differences. The reason is that the thermocouple only measures the radiation heat at the position of its probe, and the comprehensive thermal effects of the product, such as insulation time and conduction heat generated by the kiln, cannot be recorded.

The temperature measuring ring can record all the accumulated thermal effects of the product during the firing process, providing a better temperature measurement product that is different from the product firing situation measured by thermocouples and other equipment. It is closer to the product and more accurately reflects the heating of the product.