The Develop Of Size Detector Based On Virtual Instrument

The part size detection belongs to the product detection technology, plays an important role in the present industry production. Level of the detection technology decides detection precision, speed, reliable and so on, a series of industrial production target, that is the key aspect which affects the product production efficiency, and that is the very important link in the product life cycle. Level of the detection technology is important evaluation standard of the entire industrial technology level. Recently, size detection tended to the automation in the advanced industrial nations day by day, However, level of the part size detection is also universal somewhat low in domestic, that simply cannot satisfy the home industry rapid development to the part size high accuracy, the automated request. Therefore, high accuracy high automation integration size detector mainly depends on the import, that is why to develop the virtual part size detector which is the high accuracy high automation high integration .In the data analysis process we adopt the statistics process control and appraisal technology (SPC) which has been already successful applied in the world. This paper combines the traditional part size detection with the modern quality control theory through the virtual instrument technology. Using the SPC technology, we can monitor the part's production craft to assure the craft is at the controlled condition and the high quality of the part. The SPC technology might avoid the waste of products and large quantities of sub-quality products and enhanced the production efficiency. This virtual part size detector is based on advanced thought of the virtual instrument technology, depends on advanced idea of the VMIDS that is one of virtual instrument technology systems which the Chongqing University test center posses proprietary intellectual property rights.The virtual part size detector design the center control module, the parameter establishment module, the data acquisition and processing module, the data analysis module, the data display module, the data review module, the printout module and other auxiliary function module. All of these can realize acquire, process, analysis and display part size function. The instrumentation is developed in VC++, and data storage by the MYSQL database.The virtual part size detector is a successful attempt which applies the virtual instrument into measurement domain, which is sparkpluged by Professor Qin Shunren. The practice indicated that the virtual instrument can combine the traditional size detection with the quality control. And the virtual instrument's formidable vitality and the new method of size detection are shown in this paper.