Optical fiber sensor is slowly into the life of the people

Under the background of the popularization of the optical fiber sensor quickly, many industries in our country has begun to widely used optical fiber sensor, makes the product has a great market space for development. In the oil and gas, aerospace, biomedical will be a large number of applications. In addition, the optical fiber sensors can be embedded in concrete, carbon fiber reinforced plastics and various kinds of composite materials, used to test the stress relaxation, construction stress and dynamic load stress, short-term construction stage to assess the bridge structure performance and long-term operating status. Mainly as city construction, Bridges, DAMS, oil field and other interference of gyroscope and grating pressure sensor applications.

sensor in the sensitive, accurate and adaptable, compact and intelligent direction. In this process, the optical fiber sensor the sensor to the new members of the family. Optical fiber sensor is developed in recent years the rapid detection of gene technology, can be applied to various toxin detection and antigen-antibody interaction detection, etc. , is an important field of biophysical technology development. Optical fiber has many excellent properties, almost all important areas related to national economy and national defense and People's Daily life, especially can safely and effectively used in the bad environment, solved many industry over the years there has been a technical problem, has great market demand.

, according to the relevant data from 2012 to 2017, the global optical fiber sensor ( Including some fraction and distributed) Consumer value, the average annual increase of up to 203%, their annual consumption value will grow from $15. 8 billion in 2012 to $39. 8 billion in 2017. In the 2013 - 2017 China optical fiber sensor market analysis research report mentioned: optical fiber sensor is a new technology in recent years, can be used to measure various physical quantities, has many excellent performance, application range, the market demand in 2016 will amount to $1. 1 billion, wide prospect of market.

power system also has comes in optical fiber sensor, the high voltage transformer and the detection of temperature in the large motor stator and rotor, etc. , due to the electric sensors are vulnerable to the interference of electromagnetic field, cannot be used on such occasions, can only use fiber optic sensor. Can continuous real-time measurement of optical fiber, the temperature at various points within a few kilometers along the position precision can reach m level, the level of measurement precision can reach 1 degree, very apply a wide range of junction temperature measurement applications.

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key words: thermal resistance, thermocouple, thermal resistance, platinum resistance, PT100, PT1000, pressure sensor and digital temperature sensor