Design Of Distributed Optical Fiber Sensor Acquisition And Control System

Distributed optical fiber sensor acquisition and control system is an important part of Brillouin optical time domain analysis system.This paper elucidates the basic theory of distributed optical fiber sensor acquisition and control system,and gives the overall design scheme.The scheme design of acquisition and control system is composed of schematic design and PCB design,which includes the planning of each functional module of the system,the selection of main components and the analysis of the parameters.It produces the control signals for data acquisition and other modules of the system,and coordinates the work of different modules.This paper focuses on the hardware circuit design of distributed optical fiber sensor acquisition and control system,which is based on the theory of distributed optical fiber sensor and PCB design.The circuit design of each module in the system will directly affect the accuracy and stability of the distributed optical fiber sensor acquisition and control system.So,the design of power module,acquisition and control module and communication interface module is analyzed and demonstrated in detail.At the end of the paper,the time sequences produced by PCB board is tested.