أجهزة استشعار درجة حرارة الألياف الضوئية INNO ,أنظمة مراقبة درجة الحرارة.
The Best Way for Fiber Optic Temperature Measurement
There are many types of fiber optic temperature measurement, including point type fiber optic temperature measurement and قياس درجة حرارة الألياف الضوئية الموزعة. In many special temperature measurement environments, temperature measurement may encounter some difficulties. أجهزة استشعار الألياف الضوئية الفلورسنت are increasingly being valued due to their excellent insulation, مكافحة التدخل الكهرومغناطيسي, حجم صغير, خسارة انتقال منخفضة, مقاومة التآكل, وسهلة التركيب. The basic principle of fluorescence fiber optic temperature measurement is to excite fluorescence medium with blue purple light to generate fluorescence, and the lifetime of fluorescence will decrease with the increase of temperature. لذلك, temperature measurement can be achieved by detecting the lifetime of fluorescence.
Comparison between traditional temperature sensors and fiber optic sensors
Traditional sensors are devices that isolate the measured physical quantity of input and convert it into electrical signals in a certain proportion. Its output can directly match the input of remote control devices, recording instruments, and other equipment in the system, forming a data acquisition and monitoring system. It is an important component to ensure the safe, اقتصادية, and stable operation of power equipment such as transformers, frequency converter units, and high-voltage switchgear. في التطبيقات العملية, the above on-site environment is often extremely harsh, and operators often cannot reach the site and must collect these analog signals from a distance of several hundred meters or even several kilometers. In addition to various interferences in industrial sites (such as celestial discharge interference, corona discharge interference, electrical equipment frequency interference, induction interference) that enter the measurement system through different coupling methods, the signal is severely distorted. Due to the common mode voltage of several thousand volts to tens of thousands of volts between the on-site measurement circuit ground wire and the back-end collection circuit ground wire, if connected directly with cables, it will generate a large grounding loop current, posing a great threat to the safety of equipment and operators. لذلك, high-precision measurements must be completed in a state of mutual isolation. في هذا السياق, fiber optic sensors were born, which use optical fibers to isolate the voltage of tens of millions of volts between the acquisition end and the device and transmit data signals between them. Fiber optic has excellent electrical insulation characteristics and good resistance to electromagnetic interference, making it widely used in hazardous electrical environments.
What is the best temperature measuring device in the power system
في الوقت الحالي, the fiber optic temperature measurement methods used for cable joints and high-voltage switchgear switch contacts mainly include الألياف الضوئية الموزعة أجهزة استشعار درجة الحرارة, quasi distributed fiber optic grating temperature sensors, and plastic fiber optic fluorescence temperature sensors. The first two are relatively expensive to use, especially for small or scattered temperature measurement points, which require a lot of capital investment and cause many unnecessary waste. في نفس الوقت, there are also many inconveniences in the construction process. Although plastic fiber optic fluorescent temperature sensors have low cost and convenient construction, their high temperature resistance is poor, and their applications are greatly limited.
In the power system of power plants and large petroleum and petrochemical enterprises, it is necessary to measure the temperature of high-voltage cable joints and monitor the contact temperature of switchgear online. Fiber optic temperature sensors are the best means to meet their online real-time monitoring needs. The highly stable مستشعر درجة حرارة الألياف الضوئية الفلورسنت independently developed by FJINNO has been widely used in electrical equipment, which can meet the current safety production management needs of large enterprises in China and promote the popularization and application of low-cost and cost-effective temperature monitoring systems in electrical companies and manufacturers.
The advantages of point type أجهزة استشعار درجة حرارة الألياف الضوئية
It has the advantages of intrinsic safety, لا التدخل الكهرومغناطيسي, المراقبة عن بعد, high accuracy and sensitivity, مقاومة الضغط العالي, مقاومة التآكل, ability to work in harsh chemical environments, وتكلفة منخفضة.
The application scope of point type قياس درجة حرارة الألياف الضوئية طريقة
Mainly used for online temperature monitoring and temperature alarm systems in high voltage and ultra-high voltage environments, its temperature measurement range includes but is not limited to: online temperature detection and overheating alarm systems for high-voltage transformer cabinets, المفاتيح الكهربائية, الكابلات تحت الأرض, and high-voltage overhead cables; Temperature detection and overheat alarm systems for various pipeline networks in power plants, as well as overall temperature detection and overheat alarm systems for large and medium-sized transformers; Environmental temperature detection and fire alarm system for substations; Temperature detection, تشخيص الخطأ, and overheating alarm system for generator sets; الوقاية من الحرائق وإنذار درجة الحرارة في مناجم الفحم والأنفاق.
With the rapid development of China’s economy and the continuous upgrading of the power system, the market for point type fiber optic temperature sensors is growing at an exponential rate every year. With the gradual opening of the power market to private enterprises, its domestic market share will grow at a faster rate. We welcome cooperation in fiber optic temperature measurement products from various industries.
مستشعر درجة حرارة الألياف الضوئية, نظام مراقبة ذكي, الشركة المصنعة للألياف الضوئية الموزعة في الصين
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