High temperature photoelectric temperature measuring system

Abstract

The invention discloses a high temperature photoelectric temperature measuring system. The high temperature photoelectric temperature measuring system comprises a blackbody cavity, a high temperature optical fiber, a low temperature optical fiber, an optical coupler which is used for connecting the high temperature optical fiber and the low temperature optical fiber, a battery of lens which is arranged at an exit end of the low temperature optical fiber and used for conducting collimation to measured emitted light, a light filter which is arranged on the back of the battery of lens in a parallel mode, a photoelectric detector which is used for converting optical signals which are filtered by the light filter into electrical signals, a signal processing system which is connected with the photoelectric detector and used for analyzing and processing the electrical signals and a display unit which is connected with the signal processing system. The high temperature optical fiber is connected with the blackbody cavity, the battery of lens, the light filter, the photoelectric detector, the signal processing system and the display unit are sequentially distributed on the same straight line from left to right, and the photoelectric detector and the display unit are both connected with the signal processing system. The high temperature photoelectric temperature measuring system is simple in structure, convenient to operate, high in temperature measuring precision, reliable in performance, long in service life, low in cost, and capable of replacing the application and the production of a traditional platinum-rhodium thermocouple.

Description

technical field [0001] The invention relates to a testing system, in particular to a high-temperature photoelectric temperature measuring system. Background technique [0002] There are many high-temperature environments in industrial production, such as metal smelting, large boilers in power plants, chemical production, etc. In order to ensure the safety of production equipment and product quality, accurate and real-time detection of these high-temperature environments is very necessary. At present, high-temperature environment measurement is mainly divided into contact measurement and non-contact measurement. In many production processes, common contact measurement mainly uses thermocouples, of which platinum-rhodium thermocouples are the most commonly used, but for platinum-rhodium thermocouples, Working under the conditions of high temperature, high pressure and harmful medium, the couple wires are damaged quickly and are greatly affected by the environment, and the cost...

AI Technical Summary

Problems solved by technology

At present, high-temperature environment measurement is mainly divided into contact measurement and non-contact measurement. In many production processes, common contact measurement mainly uses thermocouples, of which platinum-rhodium thermocouples are the most commonly used, but for platinum-rhodium thermocouples, Working under high temperature, high pressure and harmful medium conditions, the wire is damaged quickly and is greatly affected by the environment, and the cost of using a platinum-rhodium thermocouple is high.

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