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Home > MEMS / sensing technology > The characteristics and working principle of fiber optic sensor are an

The characteristics and working principle of fiber optic sensor are analyzed

Published time: 2020-02-13 12:48:17

The basic working principle of optical fiber sensor is to light from the light source signal through optical fiber to the modulator, the parameters and enter the modulation OuDeGuang interaction under test, leading to the optical properties of the light (such as light intensity, wavelength, frequency, phase, polarization, etc.) change, become a modulated signal source, after a fiber into light detector, after demodulation, obtain the parameter being measured.Because there are many kinds of fiber optic sensors, which can measure many physical parameters at high resolution, they have many advantages over traditional electromechanical sensors, which can be used in civil, aerospace, power industry and so on.The application in electric power industry is emphasized.A fiber optic sensor is a sensor that converts optical signals into electrical signals.

Characteristics of optical fiber displacement sensor

1. Small size

2. Light weight

3. Anti-electromagnetic interference

4. Corrosion resistance

5. Good power limit

fiber optic sensor

6. Explosion-proof

The light path is flexible

8. Simple structure

9. High sensitivity

10. High resolution

Application of optical fiber displacement sensor

1. Microwave and rf environment

2. Nuclear energy and the dangerous environment

3. High temperature and high pressure environment

4. Online monitoring

5. Aerospace applications

6. Civil engineering and geotechnical applications

7. Materials science

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