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Photoelectric switch optical fiber sensor structure introduction

Author : KJT Date : 2014-10-30 16:59:10
 Photoelectric switch optical fiber sensor structure introduction

  Function type photoelectric switch of optical fiber sensor in structure than the light transmission type optical fiber sensor is simple, because the fiber is continuous, can use less optical coupling device. But in order to change of fiber can accept outside of the physical quantity, often require the use of special optical fiber for probe. This increases the difficulty of producing sensor. With the large number of available to the basic principle of optical fiber sensor deep into research and a variety of special fiber, functional fiber sensor with high sensitivity will be more widely applied.

  Optical fiber sensor has the following three characteristics, which have been widely used.

  1, optical fiber sensor has good light transmission performance, optical transmission loss is very small, the current loss can reach very low levels.

  2, the optical fiber sensor with wide frequency band, can be carried out with high sensitivity and good linearity measurement.

  3, the optical fiber sensor has the advantages of small size, light weight, can carry on the non contact type, in the harsh environment of non destructive and long-distance measurement.