Fiber Bragg gratings are very sensitive to stress and temperature. No matter whether the FBG is subjected to stress or the ambient temperature changes, it is reflected in the fiber grating that the grating pitch has changed, that is, the fiber grating sensor has corresponding strain. This means that when you want to use FBG strain sensors for accurate testing, you must consider whether the ambient temperature has changed, you must deduct the effect of temperature on the reflected wavelength from formula Strain(μɛ)=((λS-λS0）-（λT-λT0）*KT)/Ks, that is to say, let (λT-λT0)=0 or the value of (λT-λT0) is numerically known, this process is called FBG Temperature Compensation for Strain sensors.

Types of FBG Strain Sensor

FBG Strain Sensor MS-01/MST-01

Mountable Strain Sensor MS-01 made of stainless steel, the sensing part adopts elastic structure, and the mounting base is a separate component, which can be easily installed.