광섬유 온도 센서, 지능형 모니터링 시스템, 중국에 분포된 광섬유 제조업체
In the current situation of power equipment, such as transformer temperature measurement, electrical sensors (such as platinum resistors) are mainly used. One wire is connected to one sensor, and the signal is an electrical signal, which is easily affected by strong electricity and strong magnetism. It is also limited to use in flammable, explosive and other situations; In power applications with strong electromagnetic interference and high insulation requirements, FJINNO’s independently developed fiber optic temperature measurement system has been widely used in various temperature measurement fields.
What are the advantages of fiber optic grating sensors
As a type of passive fiber optic device, fiber Bragg gratings have advantages such as resistance to electromagnetic interference, 고온, and small size. Fiber Bragg grating sensors mainly use fiber Bragg gratings, and the sensor signal made of fiber Bragg gratings is wavelength modulated, with strong anti-interference ability. The measurement signal is not affected by factors such as fiber loss, light source fluctuations, and detector aging. It is easy to combine wavelength division multiplexing technology to form a fiber Bragg grating sensing network, achieving distributed multi-point real-time online sensing. It is widely used in the measurement of physical quantities such as temperature, 거르다, and pressure. Temperature measurement is one of the most important applications of fiber optic grating sensors. Electronic temperature sensors such as thermocouple sensors and thermistor sensors have disadvantages such as poor resistance to electromagnetic interference, poor stability, and slow response speed. They are suitable for narrow environments and cannot be used in harsh environments. Fiber optic grating temperature sensors have advantages such as high sensitivity, 작은 크기, resistance to electromagnetic radiation, strong stability, and long signal transmission distance, making them suitable for a wide range of environments.
What are the characteristics of fiber optic grating temperature sensors
Fiber Bragg Grating Temperature Sensor is a sensor that detects temperature by the central wavelength shift of the reflected light signal from the internal sensitive element – the fiber Bragg grating. Installation structures with different packaging options such as surface, 포함, 그리고 몰입. 광섬유 격자 온도 센서는 광파를 사용하여 정보를 전송하기 때문입니다, 광섬유는 전기적으로 절연되고 부식에 강한 전송 매체입니다., they are not afraid of strong electromagnetic interference and do not affect the external electromagnetic field. 이를 통해 다양한 대규모 전기 기계에서 모니터링하는 데 편리하고 효과적입니다, 석유 화학, 야금술 고압적인, 강한 전자기 간섭, 가연성, 폭발성, 그리고 부식성이 높은 환경, 높은 신뢰성과 안정성으로. 또한, 광섬유 격자 온도 센서의 측정 결과는 반복성이 우수합니다., making it easy to form various forms of fiber optic sensing networks and can be used for absolute measurement of external parameters. Multiple gratings can also be written into a single optical fiber to form a sensing array, 유사 분산 측정 달성.
Fiber optic grating sensors not only have the advantages of ordinary fiber optic sensors, such as electromagnetic resistance, 내식성, high temperature resistance, no electricity, no heat generation, flame resistance, 폭발 방지, 경량, small volume, and safe operation in harmful or dangerous environments, but also have unique advantages: fiber optic sensors are easy to couple and have low coupling loss; Strong anti-interference ability, integrating sensing and transmission, and having stronger multiplexing ability, making it easy to form a sensing network; It has a wide range of measurement objects and is easy to achieve multi parameter sensing measurement.
Application Fields of Fiber Bragg Grating Sensors
Fiber optic grating sensors have various installation methods, such as surface mounted and embedded, and can be widely used for distributed temperature monitoring and measurement of civil engineering structures such as bridges, dams, 터널, as well as quasi distributed accurate temperature measurement of large facilities or equipment in the fields of chemical, 힘, military, 항공 우주, 화재 예방, mining, 등. They can also be used for temperature sensing fire detection and automatic alarm in oil tanks and highway tunnels.