Modern society is a rapidly developing society, and fiber optic sensors are indispensable to humans because we need the internet, which can quickly transmit information and store more information.

(1) High sensitive

Due to the fact that light is an extremely short wavelength electromagnetic wave, its optical length is determined by the phase of light. Taking fiber optic interferometers as an example, due to the small diameter of the fiber used, the optical length will change when subjected to small mechanical external forces or temperature changes, resulting in significant phase changes.

(2) Anti electromagnetic interference, electrical insulation, corrosion resistance

Due to the fact that optical fiber sensors use light waves to transmit information, while optical fiber is an electrically insulated, corrosion-resistant transmission medium, and reliable, it can be conveniently used in various large electromechanical, petrochemical, mining and other harsh environments with strong electromagnetic interference and flammable and explosive properties.

(3) Fast measurement speed

The propagation speed of light is fast and can transmit two-dimensional information, so it can be used for high-speed measurement. The analysis of radar and other signals requires a high detection rate, which is difficult to achieve using electronic methods. High speed spectral analysis using light diffraction phenomena can solve this problem.

(4) Large information capacity

The measured signal is carried by light waves, and the frequency of light is extremely high, which accommodates a wide frequency band. The same optical fiber can transmit multiple signals.

(5)Suitable for harsh environments

Fiber optic is a dielectric material that is resistant to high voltage, corrosion, and electromagnetic interference, and can be used in harsh environments that other sensors are not suitable for.

In addition, fiber optic sensors also have the characteristics of light weight, small size, flexibility, wide range of measurement objects, good reusability, and low cost.