Introduction

Optical fiber sensing uses laser as a sensitive information carrier and optical fiber as an information transmission medium to sense and transmit external measured signals. It has the characteristics of anti-interference and electrical insulation. This set of experimental equipment was developed based on the contents of textbooks such as "Sensor Principles and Technology", "Optical Fiber Technology and Applications", "Optoelectronic Testing Technology", "Optoelectronics", etc. and combined with practical engineering applications. This experiment is suitable for majors such as measurement and control technology and instruments, optoelectronic information science and engineering, electronic science and technology, etc., and can be taught as a professional basic experimental course.

Experiments

Half-fiber Mach-Zehnder interferometer construction experiment;

All-fiber Mach-Zehnder interferometer construction experiment;

Transmission optical fiber displacement sensor experiment;

Reflective fiber optic displacement sensor experiment;

Optical fiber pressure sensor experiment;

Fiber optic current sensor experiments.

Experimental Knowledge

Fiber Mach-Zehnder interference, principle of reflective optical fiber displacement sensor,

principle of transmission optical fiber displacement sensor, principle of optical fiber micro-bending sensor,

and optical fiber current sensor.

Typical Data

                           Test Result                                    Semi-fiber Mach-Zehnder Renderings

Experimental Light Source and Optical Fiber Beam Splitter           Reflective Fiber Optic Sensing Experimental Device