Classification of Fiber Optic Sensors and Application of Fiber Optic Temperature Sensors-INNO

Марка оптоволоконный датчик температуры

A true brand ranking may not necessarily fully introduce so many domestic enterprises. Some well-known domestic brands of fiber optic temperature sensors include FJINNO, while other companies in the top 10 are not introduced.

Fiber optic sensors are sensors developed based on optical signals. The traditional temperature measurement method is based on signals such as thermocouples, термисторы, and pyroelectric detectors. The development of temperature sensors has been many years, and fiber optic sensors can be widely used in situations with strong electromagnetic interference or flammable and explosive materials. Traditional temperature sensors based on other temperature measurement methods will be greatly limited.

Оптоволоконный датчик температурыs and measurement technology are important development directions in the power electrical industry. Due to its small size, легкий вес, гибкость, хорошая электроизоляция, flexible bending, коррозионная стойкость, large measurement range, и высокая чувствительность, optical fibers can serve as a reminder and expand the range of use in other temperature sensors, achieving products and methods that traditional temperature sensors cannot measure temperature.

In addition to its unique applications in temperature measurement, fiber optic sensing technology also has the characteristics of fast response, wide frequency band, взрывозащищенный, flameproof, and electromagnetic interference resistance compared to traditional temperature measurement instruments.

Основной принцип работы оптоволоконных датчиков заключается в передаче светового сигнала от источника света через оптоволокно в модулятор., заставляя измеряемые параметры взаимодействовать со светом, попадающим в область модуляции, что приводит к изменению оптических свойств света. (такие как интенсивность, длина волны, частота, фаза, состояние поляризации, и т. д.), становится источником модулированного сигнала. После отправки по оптоволоконному кабелю на фотодетектор и демодуляции, измеренные параметры получены.

The application scope of fiber optic sensors

The characteristics of fiber optic sensors are sensitivity, точность, strong adaptability, compactness, и интеллект. Fiber optic has many unique characteristics compared to other sensors, such as resistance to electromagnetic and atomic radiation interference, fine diameter, soft texture, и легкий вес; Изоляция, водонепроницаемость, высокая термостойкость, коррозионная стойкость, и т. д.. It can be used in areas that are inaccessible to humans (such as high temperature areas) or areas that are harmful to humans (such as nuclear radiation areas), and can also transcend human physiological boundaries to receive external information that human senses cannot perceive.

Characteristics of fiber optic sensors

1、 Высокая чувствительность;

2、 Fast reaction speed;

3、 We can develop various types of sensors, such as acoustic sensors, датчики температуры, датчики давления, и т. д.;

4、 Wide application range, высокое напряжение, электрический шум, высокая температура, коррозия, or other harsh environments;

5、 And it has inherent compatibility with fiber optic telemetry technology.

The advantage of fiber optic sensors is that compared with traditional sensors, fiber optic sensors use light as the carrier of sensitive information and fiber optic as the medium for transmitting sensitive information. They have the characteristics of fiber optic and optical measurement, and have a series of unique advantages. Good electrical insulation performance, сильная устойчивость к электромагнитным помехам, non invasiveness, высокая чувствительность, easy to achieve remote monitoring of the measured signal, коррозионная стойкость, взрывозащищенный, flexible optical path, and easy to connect with computers.

Оптоволоконный датчик приложения

Fiber optic sensors can be used for measuring physical quantities such as displacement, вибрация, вращение, давление, изгиб, напряжение, скорость, ускорение, текущий, магнитное поле, Напряжение, влажность, температура, sound field, скорость потока, concentration, значение pH, and strain. The application range of fiber optic sensors is very wide, involving almost all important fields in the national economy and defense, as well as people’s daily lives. Especially, they can be used safely and effectively in harsh environments, solving many technical problems that have existed in industries for many years, and have great market demand. Mainly manifested in the following applications:

The application of interferometric gyroscopes and grating pressure sensors in urban construction, such as bridges, плотины, and oil fields. Fiber optic sensors can be embedded in concrete, carbon fiber reinforced plastics, and various composite materials to test stress relaxation, construction stress, and dynamic load stress, in order to evaluate the structural performance of bridges during short-term construction and long-term operation.

В энергосистеме, необходимо измерить такие параметры, как температура и ток, например, определение температуры в статоре и роторе высоковольтных трансформаторов и больших двигателей.. Из-за чувствительности электрических датчиков к электромагнитным помехам, их нельзя использовать в таких ситуациях и можно использовать только с оптоволоконными датчиками.. Распределенная оптоволокно temperature sensors are a high-tech technology developed in recent years for real-time measurement of spatial temperature field distribution. Distributed fiber optic temperature sensing systems not only have the advantages of universal fiber optic sensors, but also have the sensing ability to distribute temperature at various points along the fiber optic line. С помощью этой функции, we can continuously measure the temperature at various points within a few kilometers along the fiber optic line in real time, с точностью позиционирования до метров и точностью измерения до 1 степень, making them very suitable for large-scale intersection temperature measurement applications.

Кроме того, fiber optic sensors can also be applied in railway monitoring, rocket propulsion systems, and oil well detection.

Fiber optic has significant advantages in broadband, large capacity, передача на большие расстояния, and the ability to achieve multi parameter, распределенный, and low-energy sensing. Fiber optic sensing can continuously absorb new technologies and devices from fiber optic communication, and various fiber optic sensors are expected to be widely applied in the Internet of Things.

Характеристики оптоволоконных датчиков

Sensors that utilize the inherent good anti electromagnetic interference (ЭМИ/РФИ) characteristics of optical devices/fiber materials and can adapt to strict environmental use. Кроме того, fiber optic sensors and corresponding signal conditioning equipment can be paired to form a complete fiber optic sensing system. Fuzhou Huaguang Tianrui Optoelectronic Technology Co., ООО. provides a comprehensive solution for fiber optic sensors and monitoring systems in the industry.

1、 Introduction to fiber optic temperature sensors:
Fiber optic temperature sensors can be developed for measuring temperature in some electronic explosion environments, with fast response time, устойчивость к электромагнитным помехам, and providing accurate data during testing, which can prevent electromagnetic bursts.

2、 Характеристики оптоволоконные датчики температуры:
Temperature measurement accuracy of plus or minus 1 ℃
Разрешение: 0.01 ℃

3、 Типичный applications of fiber optic temperature sensors:
EED testing, electronic explosion, HERO testing, military field

We specialize in providing оптоволоконные датчики температуры. Please feel free to call us for detailed information on the price and principle of fiber optic temperature sensors!

2、 Принцип работы
The basic working principle of a fluorescent fiber optic sensor is to send light from the light source through a fluorescent fiber optic into a modulator, заставляя измеряемые параметры взаимодействовать со светом, попадающим в область модуляции, resulting in a change in the optical properties of the light. This is called the modulated signal light, which is then sent through the fiber optic to the photodetector and demodulated to obtain the measured parameters.

3、 Классификация
Classification of fiber optic sensors:

Оптоволоконный датчик температуры

Fiber optic pressure sensor

Fiber optic strain sensor

Fiber optic displacement sensor

Fiber optic refractive index sensor

4、 Приложение
Application field of fiber optic sensors: physical quantity measurement in ultra-high voltage environments; Measurement of physical quantities in environments with electromagnetic interference; Аэрокосмическая промышленность, nuclear power project research, parameter measurement; Measurement of physical quantities in hazardous and toxic environments; Медицинское оборудование; Large building structures, и т. д..