Apakah itu termometer gentian pendarfluor-INNO

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. Status perkembangan semasa teknologi pengukuran suhu gentian optik pendarfluor di dalam dan di luar negara diterangkan, dan kelebihan unik teknologi pengukuran suhu gentian optik pendarfluor berbanding kaedah pengukuran suhu lain dihuraikan. Dengan memperkenalkan prinsip kerja instrumen pengukuran suhu gentian optik pendarfluor dan menganalisis faktor utama yang mempengaruhi pengukuran suhu, asas teori diwujudkan untuk reka bentuk instrumen pengukuran suhu gentian optik pendarfluor. 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 sistem pengukuran suhu gentian optik 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) The key technologies of optical mechanical structure include: using a single optical fiber to simultaneously transmit light source signals and fluorescence signals, reducing the volume and fluorescence loss of fluorescence fiber thermometers; Using multiple filters to screen excitation light and fluorescence; Using high-temperature melting technology to achieve sealing of fluorescent fiber optic probes.

(2) The key technology of demodulation circuit includes: using rectangular wave signal and voltage dynamic adjustment signal as two inputs to achieve periodic switching of light source and output power adjustment, indirectly achieving amplitude adjustment of sampling signal; Using differential amplification circuits and differential correction signals to amplify sampling signals and correct biases; Simplify circuit components and integrate control, pemprosesan, communication and other functions into one chip, which is conducive to the miniaturization of fluorescence fiber thermometers; Adopting the least squares fitting algorithm and using voltage signals instead of light signals 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 fluorescent probe part of the optical path adopts high-temperature melting sealing instead of traditional probe protection schemes such as metal protective covers or heat shrink tubes, which increases the flexibility and sealing effect of the probe;

2、 The electrical characteristics of some components in the demodulator vary with temperature. To reduce the impact of this part on signal demodulation, 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 fluorescent pengukuran suhu gentian optik:
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.

Ciri-ciri sistem pengukuran suhu

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

Pengukuran suhu tanpa wayar sistem

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

Kelebihan daripada Sistem Pengukuran Suhu Gentian Optik Pendarfluor

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

Teknologi pengukuran suhu pendarfluor menukar isyarat suhu kepada isyarat optik berdasarkan fenomena photoluminescence bahan pendarfluor, 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.