The Design Of The Intelligent Coulostatic Corrosion Monitor Based On Modularization

Metal corrosion has brought huge loss of the National Economic. Corrosion monitoring techniques can provides corrosion performance in real-time and thus early warnings of costly corrosion damage. Now the intelligent corrosion monitor based on single-chip microcomputer technique has become an important development direction in corrosion monitoring. The process and tendency at home and abroad in intelligent corrosion monitor are reviewed in this paper, at the same time, the coulostatic technology and its application in the corrosion monitoring has also been introduced.The coulostatic corrosion monitor is designed on the basis of MCS-51single-chip microcomputer technique and modularization priciples. The hardware of the apparatus included CPU and communication module, A/D-D/A and I/O module, signal adjust and amplifier module, and coulostatic measurenent module.The software design of the monitor applied MCS-51assembly language, it is well-structured and module. All program modules have been linked into an executable files after compiled separately, then copy to EPROM. PC programme used Visual Basic and Visual Basic is a visual programmable language with the character of user-friendly interface and easily-operation. Communicate between PC and monitor is realized through serial communication interface. Microsoft Comm Control (MSComm for short) provided by Visual Basic can be imbedded in the programs which are designed by the user.The simulation experiment based on equivalent circuit was carried on. The results can satisfy the request of the Corrosion Monitoring in industry. The monitor with a quality of high accuracy, well portability, nice stability and easily operation is very suitable for in-situ, rapid and nondestructive measurement.The design of the monitor is logical and the purpose desired has been obtained.