The Study On Signal Processing Method Of Ultrasonic Online Testing And Its General Software Platform Development

This paper is under the online detection system standardization of the supersound, module thought, put forward on the basis of multiple subjects that the seminar bears. The first part of this paper combines " supersound online testing signal processing and general software platform system " and discusses that the supersound taking technology of the computer as the core is examined online Examine systematic composition and design, and divide and discuss to the whole integrated method study of the system , signal processing method research , three pieces of module of reseach of the software platform separately.The whole integrated module of system provides the composition of the online detection system of the supersound, and has discussed the choice that the supersound pops one's head and reseach principle separately, the signal transmits and accepts, gather the reseach principle of the unit, reseach principle of the control module, reseach principle and signal of mechanical system deal with and software design principle of system and provide the application of multiple projects.Deal with the general method that the module has introduced the ultra acoustical signal and dealt with in ultra acoustical signal . Adopt mean value strain to detailed copper excellent ultra characteristic of acoustical signal wave and land value discern the method; Put forward sodden supersound that hands over to ring welding seam ultra characteristic of acoustical signal straightly measure the side; To turn into wall thickness wall barrel ultra characteristic of acoustical signal adopt datum punish the data processing algorithm that combine auto-correlation function with by stage, better realization punish and show online to defect signal.Ultrasonic software reseach module of platform introduce surface line thought and many task many realization of thread that target design of software design, and has realized that Microsoft VC ++6. 0 and PLC , one-chip computer ,etc. do not control bunches of communication of the software with machinery .Provide the following conclusion to the online detection system of supersound taking technology of the computer as the core finally:1. Supersound online detection system collect supersound can't harm detection technique , computer technology , digital signal treatment technology , numerical control technology in an organic whole, it is the technology intergration and embodiment of system integration; 2. Common software platform following module design philosophy and developing the online detection system of the supersound, can is it as one intact big system of multiple function , can divide up for one's own independent little system having wide use range to integrate; 3. Among supersound online detection system , Can't still leave people's intelligence is participated in .The second part of this paper has introduced the development situation which change the online detection system of barrel supersound of thickness wall of the wall. This system can be measured and turned into the vertical horizontal crackle of internal and external wall of 5 kinds of specifications of wall barrel of thickness of the wall, The depth of the minimum defect is 0.046mm, Zhou Xiang's resolution ratio is 1.27mm, The resolution ratio of axial is 1.39mm, The speed of measuring of each product is 5.8 seconds on average. This part according to gather signal punish and result show , systematic state control parameter set up , measure report form not to type 3 parts go on to divide to recommend.