Optical fiber sensor is an advanced sensing technology，It has several significant advantages，These advantages make it widely used in many fields。The following are the main advantages of fiber optic sensors：

1. Extremely high sensitivity and precision：Fiber optic sensors can pick up small changes in physical quantities，And turn it into a measurable light signal，To achieve high precision measurement。This high sensitivity makes fiber optic sensors excellent in situations where precise control is required。

2. Anti-electromagnetic interference：The optical fiber itself is made of dielectric，non-conducting，Therefore, optical fiber sensors will not be affected by electromagnetic interference when transmitting optical signals。This feature makes fiber optic sensors particularly suitable for applications where the electromagnetic environment is complex or electromagnetic isolation is required。

3. Good electrical insulation performance，Safe and reliable：Optical fiber sensor is an electrically passive sensitive element，There are no safety risks such as leakage and electric shock。meanwhile，The chemical properties of optical fiber are stable，Corrosion resistance，Therefore, it is suitable for flammable and explosive oils、gas、Chemical production and other harsh environment。

4. Small size、Light weight、The geometry is plastic：Fiber optic sensors can be designed into various shapes and sizes according to actual needs，Easy to install and use in a limited space。In addition，Its small size、The light weight is also easy to carry and transport。

5. Low transmission loss，Large transmission capacity：Optical fiber as the transmission medium，With very low transmission loss and very high transmission capacity。This enables fiber optic sensors to achieve remote monitoring and multi-point distributed measurement，Improve monitoring efficiency and accuracy。

6. Long service life：The main material of optical fiber sensor is quartz glass，High durability and stability。therefore，Optical fiber sensors have a relatively long service life，Capable of long-term stable operation。

7. Easy to connect with computers and fiber optic transmission systems：Optical fiber sensors can be easily connected to computers and optical fiber transmission systems，Realize remote monitoring and data transmission。This feature enables fiber optic sensors in industrial automation、Remote monitoring and other fields are widely used。

8. Wide frequency band large dynamic range：Fiber optic sensors are capable of handling a wide range of frequencies，This makes it excellent in applications that require high dynamic performance。

9. Can form a variety of physical quantities of sensors：Optical fiber sensors can be used to form sensors sensing different physical quantities with similar technical bases，Inclusive sound field、Magnetic field、stress、temperature、acceleration、rotate、displacement、Liquid level、Flow rate、Electric current、Radiation dispatching。

To sum up，Fiber optic sensors are known for their high sensitivity、High precision、Anti-electromagnetic interference、Good electrical insulation performance、Small size、Light weight、Low transmission loss、Large transmission capacity、Long service life and easy to connect with computers and fiber optic transmission systems，It has been widely used in many fields。