Mechanical Amount Of Virtual Test System Research And Development

As a result of the combination of computer technology and instrument technology, Virtual Instrumentation technology has broken through old concept of instrument and will become artery of test system. Virtual test system applicable in the field of mechanical engineering based on VI is developed. Characteristic test of resistance strain sensor and temperature test and control are researched as instances. This thesis analyses the hardware of system, and popular and low-cost PC桪AQ structure is chosen . Through analysis of universal testing system of mechanical engineering using object-oriented method, object model, dynamic model and function model are established. In addition, class architecture has been realized using graphic LabVIEW language after developing of child VI of function level and class level. Because LabVIEW is not an object-oriented language, a method to organize and realize class architecture using Lab VIEW is presented, which has good practical value. This thesis focuses on the research of system analysis, software achievement and software synthesis. Taking advantage of object-oriented method, Software module of virtual test system applicable in the field of mechanical engineering can be greatest universality and reusability, and the virtual test system performance of better universality, maintainability, expandability and reliability can be achieved. A kind of software synthesis method applicable for LabVIEW is introduced, and the software synthesis method making use of database technology and component technology is further proposed. The experiment result proves that, the virtual test system for mechanical parameters is advanced and feasible, which has rich functions and good effect.