Microwave electromagnetic anti-interference fiber optic temperature measurement system

Introduction to Microwave Electromagnetic Fluorescence Fiber Temperature Measurement System

Microwave belongs to ultra-high frequency electromagnetic waves, which have strong electromagnetic fields. When using conventional temperature sensors (such as thermocouples, thermal resistors, ve saire.) to measure temperature, metal temperature probes and wires produce induced currents under the high-frequency electromagnetic field. Due to skin effect and eddy current effect, their own temperature rises, causing serious interference to temperature measurement, resulting in significant errors in temperature readings or unstable temperature measurement. Bu yüzden, the fluorescence fiber temperature measurement system independently developed by Fuzhou INNO is a non-interference temperature sensor in the microwave field. The microwave fiber optic temperature measurement system utilizes the characteristics of fiber optic fluorescence temperature measurement, which is immune to electromagnetic radiation fields, to accurately measure the temperature of the object to be heated in the microwave cavity in ultra-high frequency, strong electromagnetic field, and heavy interference environments; And accurate temperature measurement was achieved through the probe of the fluorescent temperature sensor. The fiber optic temperature measurement system is suitable for integrating single channel or multi-channel temperature measurement, and the fluorescent fiber optic temperature measurement device is particularly suitable for precise temperature measurement under environmental interference such as thermal therapy, electromagnetic, high-frequency, and microwave.

Fiber optik prob üç bölümden oluşur: ST bağlayıcı, fiber optik kablo, ve son sıcaklık algılama ucu. ST konektörü, fotoelektrik modül ile bağlantı parçasıdır; Fiber optik kablo iletim parçasıdır, İçinde kuvars elyaf ile. Kuvars elyafının dış tarafında bir kaplama ve kaplama vardır, ve en dış kısımda bir Teflon koruyucu kılıf; Uç sıcaklık algılama ucu, sıcaklık algılamalı nadir toprak malzemeleri içerir, sıcaklık bilgisi içeren optik sinyaller üretmek için kullanılır; Optik fiber, yüksek sıcaklıklara dayanıklıdır. 200 °C ve 3 mm dış çapa sahiptir. 13,2 cm'lik uzun süreli bükülme yarıçapı. 4,4 cm'lik kısa süreli bükülme yarıçapı. Fiber optik kablo ile zemin arasındaki mesafe 0,4 m olduğunda, bir süre boyunca 100KV'lik bir güç frekansı voltajına dayanabilir. 5 tutanak.

Characteristics of Fluorescent Fiber Temperature Sensor for Microwave Electromagnetic Interference Environment

Fiber optic temperature sensors are inherently safe, Güçlü elektromanyetik girişime dayanıklı, have good electrical insulation, İstikrarlı performans, Korozyon direnci, and long service life; High temperature measurement accuracy, Geniş sıcaklık ölçüm aralığı, and flexible configuration of temperature measurement channels; Easy installation, Esnek ağ iletişimi, Standartlaştırılmış veri iletimi, high cost-effectiveness, and stable quality; The preferred product for temperature monitoring of high-frequency and microwave equipment.

Fluorescent fiber optic temperature measurement belongs to the contact type temperature measurement method. This device achieves temperature measurement based on the length of fluorescence afterglow lifetime. The fluorescent substance applied to the remote temperature measuring end will emit corresponding fluorescence energy when stimulated by specific wavelengths of light. After removing the excitation of specific wavelengths of light, the fluorescence afterglow begins to decay. The duration of fluorescence afterglow depends on the temperature of the fluorescent substance located on the temperature measuring probe, that is, the temperature of the substance to be measured. The selection of specific wavelength light excitation is matched with the selected fluorescent substance, and the most effective excitation wavelength of different fluorescent substances is different. When choosing, it is important to focus on selecting the light wavelength that is most suitable for exciting fluorescent substances. The attenuation curve of fluorescent substances excited by light is usually in a single exponential form.

Practical Application Cases of Fiber Optic Temperature Measurement System in Microwave Electromagnetic Environment