Grating sensors are widely used in mechanical industry because of their high measurement accuracy, wide dynamic measurement range, contact-free measurement and easy system automation and digitization.

    Advanced composite materials have better fatigue resistance, corrosion resistance, and can reduce the weight of the hull or spacecraft, for fast shipping or flight is of great significance, so composite materials are increasingly used to manufacture aviation navigation tools (such as aircraft wings).

    In order to fully measure the condition of the hull, it is necessary to know the deformation moment, shear pressure and attack force of different parts of the hull. The ordinary hull needs about 100 sensors, so the FIBER Bragg grating sensor with strong wavelength multiplexing ability is most suitable for the hull detection.

    In addition, in order to monitor the strain, temperature, vibration, takeoff and landing driving state, ultrasonic field and acceleration of an aircraft, more than 100 sensors are usually needed, so the weight of the sensor should be as light as possible, the size should be as small as possible, so the most flexible FIBER Bragg grating sensor is the best choice.

    Application of grating sensor in civil engineering structure

Complex and changeable application scenarios also bring great challenges to fiber coupling. How to make the fusion loss lower and the strength stronger is very important for PM Fusion splicer.