Penderia suhu gentian optik INNO ,sistem pemantauan suhu.
Prinsip bagi Termometer Gentian Optik Pendarfluor
Termometer gentian optik pendarfluor ialah peranti pengukuran suhu berdasarkan fenomena photoluminescence bahan pendarfluor. Berbanding dengan kaedah pengukuran termokopel tradisional, ia mempunyai kelebihan seperti anti gangguan elektromagnet, rintangan kakisan, dan suhu tinggi dan rintangan tekanan tinggi. Ia boleh mencapai pengesanan suhu masa nyata dalam persekitaran luaran yang lebih keras dan mempunyai prospek aplikasi yang luas. Sistem pengukuran suhu gentian pendarfluor yang dibangunkan oleh Huaguang Tianrui berdasarkan teknologi pengukuran suhu gentian pendarfluor mempunyai kelebihan unik berbanding kaedah pengukuran suhu lain. Ia menerangkan dengan mendalam prinsip kerja termometer gentian pendarfluor, menganalisis faktor utama yang mempengaruhi pengukuran suhu, and establishes a theoretical basis for the design of the fluorescence fiber thermometer. Kemudian, reka bentuk keseluruhan termometer gentian pendarfluor telah dijalankan, termasuk laluan optik, litar, perisian, struktur, dan algoritma. Untuk mengesahkan kebolehlaksanaan rancangan keseluruhan, satu eksperimen perbandingan pengukuran suhu telah direka, and the overall plan was analyzed and studied based on actual data. The fiber optic temperature measurement system has been summarized and discussed, and future directions and ideas for improving fiber optic temperature measurement have been proposed.
The technology of fluorescent fiber thermometer:
(1) Key technologies of optical mechanical structure:
Using a single optical fiber to simultaneously transmit light source signals and fluorescence signals, reducing the volume and fluorescence loss of the fluorescence fiber thermometer;
Using filters to screen excitation light and fluorescence;
Adopting advanced technology to achieve sealing of fluorescent fiber optic probes.
(2) The key technology of demodulation circuit:
Using dynamic adjustment signal input to achieve periodic switching and output power adjustment of the light source, indirectly achieving amplitude adjustment of the sampling signal;
Using correction signals to amplify sampled signals and correct biases;
Simplify circuit components and integrate control, pemprosesan, communication and other functions into chips, which is conducive to the miniaturization of fluorescence fiber thermometers;
Using fitting algorithms to calculate fluorescence lifetime and convert temperature;
Filter the fluorescence lifetime results using a filtering algorithm to reduce errors and improve the accuracy of the output results.
Design of Termometer Gentian Optik Pendarfluor:
1、 The fluorescence probe part of the optical path adopts advanced technology to replace traditional probe protection schemes, increasing the flexibility and sealing effect of the probe;
2、 The electrical characteristics of some components in the demodulator vary with temperature, and a dynamic adjustment signal is added to the circuit to adjust the stability of the signal waveform, balance waveform accuracy and error;
3、 The data processing section proposes a combination filtering method for data processing, which effectively reduces errors and improves the accuracy of output results;
4、 The software part is designed with multiple working modes and parameter reading and configuration functions to improve the adaptability of this system.
Why use pengukuran suhu gentian optik pendarfluor:
Temperature is an important reference quantity in daily production and life, and with the continuous advancement of technology and the development of human society, people have increasingly high requirements for temperature in daily industrial production and daily life. In the field of industrial production, steel production, from raw material processing, ironmaking to mold casting, steel rolling, dll., has strict temperature control. Contohnya, the preservation and transportation of fresh food in daily life, as well as temperature monitoring and control, have a significant impact on food safety and taste. Oleh itu, the importance of accurate temperature measurement is self-evident. Pada masa yang sama, in the face of increasingly specialized technical requirements classification and continuous refinement of technical conditions, corresponding measurement equipment and measurement technology classification are also increasing, and the demand for temperature measurement devices designed for various specialized environments and special requirements is constantly emerging. Under special circumstances and extreme environmental conditions, as well as different requirements such as fast dynamic response, remote measurement, dan pengukuran berbilang titik, traditional temperature measurement and signal transmission have become increasingly difficult to meet different demanding conditions, and the difficulty of implementation has also increased.
Fluorescence fiber optic temperature measurement function:
Pada masa ini, traditional temperature measurement equipment has some practical difficulties in use in many special measurement environments, such as the harsh environment of the temperature measurement point, such as corrosion, voltan tinggi, narrow space, dll., or the strong electromagnetic interference in the area where the measurement point is located, such as temperature monitoring of motors and high-voltage transformers. In response to the above difficulties, most new temperature sensors need to have advantages such as strong electromagnetic interference resistance, prestasi penebat yang baik, respon pantas, dan saiz kecil. With the application of various new materials and processes, as well as the exploration of new measurement methods, a variety of new temperature measurement devices have emerged. One of them is temperature measurement equipment based on fiber optic communication technology.
Before the birth of fiber optic fluorescence measurement technology, there were already various temperature measurement techniques. The first mercury thermometer was born as early as 1714. Mercury thermometers belong to the expansion measurement technology, which utilizes the principle of thermal expansion and contraction, and the space occupied by mercury volume varies with different temperatures. The scale of a mercury thermometer vividly displays the numerical value of temperature. Based on this principle, in addition to liquids, measurement technologies for different materials such as gases and metals have also emerged in the future. Dengan kemajuan teknologi yang berterusan, the vigorous development of electricity has brought new measurement ideas and technologies. Teknologi termokopel adalah berdasarkan sifat elektrik yang berbeza bagi komponen elektronik pada suhu yang berbeza, dan kini merupakan teknologi pengukuran suhu yang paling banyak digunakan dan pelbagai. Selain itu, teknologi komunikasi optik juga telah menunjukkan arah baru untuk pengukuran suhu. Peranti pengukuran suhu inframerah yang dibuat menggunakan ciri sinaran haba objek yang berbeza pada suhu berbeza boleh mencapai pengukuran suhu pada jarak jauh dan julat yang besar, serta kaedah pengukuran suhu tidak langsung menggunakan peranti perantaraan seperti bahan pendarfluor dan jeriji.
Characteristics of various temperature measurement systems
Sistem pengukuran suhu pengembangan
1. Harga rendah 2. Operasi dan bacaan yang mudah 3. Mekanisme pembuatan yang ringkas dan mudah
1. Ketepatan rendah 2. Mudah rosak 3. Cannot achieve automation
Infrared thermal imaging temperature measurement system
1. Non contact temperature measurement 2. Easy to use 3. Kos rendah 1. Large error
2. Can only measure surface temperature. 3. Cost of manual inspection
Sistem pengukuran suhu tanpa wayar
1. Pemasangan yang mudah 2. Kos rendah
1. Poor reliability, carrying batteries, short lifespan, high false alarm rate
2. Affects the performance of insulators
3. The large volume of sensors affects heat dissipation and poses a safety hazard to primary equipment
Sistem Pengukuran Suhu Gentian Bragg Grating
1. It can achieve quasi distributed temperature measurement, suitable for long-distance and large area measurement
2. Adopting fiber optic technology to resist electromagnetic interference
3. Prestasi penebat yang baik
1. The sensor probe is large and difficult to install
2. Low reliability, grating is prone to desensitization and failure
3. Short lifespan
4. Unable to achieve single cabinet matching and on-site display
5. Expensive price
Advantages of Fluorescent Fiber Optic Temperature Measurement System
1. Selamat dan boleh dipercayai, can achieve calibration free, with good consistency, kebolehtukaran, dan kestabilan
2. Jangka hayat yang panjang, bebas penyelenggaraan
3. Siasatan mempunyai isipadu yang kecil dan boleh menembusi jauh ke dalam kawasan panas untuk mencapai pemantauan sebenar
4. Anti gangguan elektromagnet, prestasi penebat yang baik
5. Ia boleh mencapai paparan di tapak, menjadikannya mudah untuk disepadukan ke dalam sistem pengendalian
6. Pemasangan yang mudah
Fluorescence temperature measurement technology converts temperature signals into optical signals based on the photoluminescence phenomenon of fluorescent materials, dan menggunakan kecekapan tinggi gentian optik dalam penghantaran isyarat optik untuk mencapai pengukuran suhu masa nyata dan jarak jauh dengan berkesan. Teknologi pengukuran pendarfluor gentian optik mewarisi kelebihan teknologi penderiaan gentian optik. Berbanding dengan teknologi pengukuran suhu lain, ia bukan sahaja mempunyai ciri-ciri rintangan kakisan, penebat yang baik, dan saiz kecil, tetapi juga berkesan mengurangkan gangguan elektromagnet. Sementara itu, teknologi pengukuran pendarfluor gentian optik juga mempunyai ciri-ciri jangka hayat yang panjang, bebas penyelenggaraan, kestabilan yang baik, dan konsisten. Selain itu, sistem ini juga menampilkan paparan masa nyata, penyepaduan mudah ke dalam sistem lain, dan pemasangan yang mudah.
Application scenarios of fluorescence fiber optic temperature measurement system
Fluorescence temperature measurement technology, with its characteristics of anti electromagnetic interference, saiz kecil, good dynamic response, rintangan kakisan, jarak penghantaran yang panjang, dan kehilangan penghantaran yang rendah, has gradually expanded its application fields to medical applications such as microwave heating therapy, pengesanan suhu dalaman pengubah, atau pemantauan suhu pencawang dalam persekitaran dan keperluan yang unik atau proprietari, sebagai tambahan kepada pemantauan dan pengukuran suhu yang biasa digunakan dalam pengeluaran dan kehidupan harian. Ia telah mendapat perhatian dan kajian daripada para sarjana.
Transformer menghasilkan sejumlah besar haba semasa operasi, yang boleh menjejaskan prestasi pelbagai komponen mereka, membawa kepada perubahan dalam kapasiti beban pengubah, kebolehpercayaan operasi, dan jangka hayat. Pada masa ini, transformer tenggelam minyak dan transformer tenggelam minyak digunakan secara meluas dalam sistem kuasa. Penampilan badan pengubah adalah dinding luar tangki minyak, dan dalamannya terutamanya terdiri daripada gegelung penggulungan transformer dan minyak penyejuk. The slender structure of the fiber optic fluorescent probe allows it to be installed and fixed on the transformer coil, minimizing data monitoring lag and improving monitoring accuracy to the greatest extent possible.
High voltage switchgear is commonly used in power system high-voltage situations to control voltage switching. The main temperature measurement point of the switchgear is the contact joint, but the space in this area is relatively narrow. The size and diameter of fiber optic fluorescent probes are very small. The slender shape of the fiber optic probe allows it to be easily bent and inserted into narrow spaces, and then fixed in contact with the stationary contact, which does not affect the normal operation of the equipment and is therefore safer. Selain itu, fiber optic fluorescence temperature measurement technology can also be applied to mining of coal, oil and other minerals, as well as storage of raw materials (such as oil and natural gas) in industrial production that require long-term strict temperature monitoring.
The research on fiber optic fluorescence temperature measurement technology has been ongoing for many years since its inception, but with the continuous emergence of new devices and the expansion of application fields, the performance requirements for sensors have increased, and there is still a lot of room for development; Sebaliknya, new materials with superior performance continue to emerge, and sensitive materials with new characteristics provide us with new choices, making the design of sensors face new concepts. As a promising technology, fiber optic fluorescence temperature sensing technology can be widely applied in some special industries, such as medical, high-voltage electrical equipment monitoring, metallurgical processing, and online temperature detection in aerospace. Oleh itu, establishing a comprehensive and systematic theory of fiber optic fluorescence temperature detection, providing simple and practical technologies, is of great significance for improving the level of scientific instruments in this field in China.
Sensor suhu gentian optik, Sistem pemantauan pintar, Pengeluar gentian optik yang diedarkan di China
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