سنسورهای دمای فیبر نوری INNO ,سیستم های نظارت بر دما.
سنسور دمای فیبر نوری, سیستم مانیتورینگ هوشمند, تولید کننده فیبر نوری توزیع شده در چین
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FJINNO company has developed a temperature measurement scheme using fluorescent optical fiber technology, based on the temperature measurement characteristics of substation equipment. این fluorescence fiber temperature measurement technology based on rare earth materials has a temperature signal that is independent of the intensity of fluorescence conduction. There is no need for electrical connection between the measurement point and the measurement signal receiving part, which fundamentally solves the problem of temperature measurement in harsh environments such as high voltage, strong electromagnetic, flammable and explosive, and has become the preferred solution for temperature measurement of substation equipment.
Temperature measurement is an important means of fault detection and maintenance in power systems. In current hot spot temperature measurement in power systems, traditional electrical signal temperature sensors are mainly used. These sensors are not suitable for situations where the power system voltage is high, الزامات عایق بالا است, و تداخل الکترومغناطیسی قوی است. They cannot directly measure the hot spot temperature inside electrical equipment. بنابراین, it is necessary to find a method that can be applied to hot spot temperature measurement of power systems and electrical equipment.
اندازه گیری دمای فیبر نوری فلورسنت technology can solve the problem of hot spot temperature measurement in power equipment. دارای ویژگی های مقاومت در برابر ولتاژ بالا است, عایق بالا, and resistance to electromagnetic interference, and is the future development direction of hot spot temperature measurement technology for electrical equipment in power systems. Fiber optic temperature measurement technology mainly includes two types: distributed fiber optic temperature measurement technology and infrared temperature measurement technology. در میان آنها, infrared temperature measurement technology can only measure the surface temperature of electrical equipment and cannot measure the hot spot temperature inside electrical equipment. The installation method of fluorescent fiber optic temperature measurement technology is the same as that of conventional electrical signal temperature sensors, and can be directly embedded in electrical equipment, so it has strong convenience in use.
این fluorescence fiber optic temperature measurement device system is divided into two parts: the bottom temperature measurement unit and the upper computer system. The bottom temperature measurement unit consists of multiple fiber optic temperature measurement devices such as transformers, تابلو برق فشار قوی, شینه های ولتاژ بالا, سر کابل, غیره. The upper computer system consists of a main control room, on-site monitoring devices, غیره. The fiber optic temperature measurement device adopts RS485 interface communication method, که از طریق مبدل های فوتوالکتریک به سیگنال های ارتباطی فیبر نوری تبدیل می شود, and realizes remote communication with the upper computer system composed of remote main control room, on-site monitoring devices, غیره., to improve the reliability and anti-interference ability of the communication system.
A complete temperature measurement scheme was designed based on fluorescence fiber optic temperature measurement technology and combined with substation equipment. After experimental verification, the temperature measurement range of the temperature measurement system reaches -40 ℃ to 200 درجه سانتی گراد, with an accuracy of 1 درجه سانتی گراد, که الزامات عملی را برآورده می کند. دستگاه اندازه گیری دما دارای ویژگی های کم هزینه است, عملکرد پایدار, کاربردی بودن قوی, fast and stable response, و عملیات ساده. کل سیستم در محیط های سخت مانند دمای بالا به طور قابل اعتماد عمل می کند, فشار بالا, میدان مغناطیسی قوی, و اشتعال پذیری و انفجار, which is beneficial for the power industry
