Electronic Universal Testing Machine To Measure And Control System

The material testing machine is one kind of standard test equipment, all kind of material performance test, the material science research and the experimental teaching need to apply it to carry on the material mechanics performance test.The measurement and control of material testing machine system has the performance requirement of high velocity, expansibility, precise movement control, multitasking and load control of implementing organ and so on. The measurement and control system not only must carry on the data acquisition and processing, but also realize to the implementing organ control simultaneously, thus integrates the automation test platform with the collection of computer measurement and control technology together. The electrically controlled testing machine based on PC has good test performance, the data and curves are demonstrated easily, the system configuration is sample, and also has ability with strong data on-line processing.The constitution, the work principle , the development direction and the existing problem of the testing machine has been introduced briefly, and the process how to use the object-oriented method based on modulation structural design and Visual C++ to develop the software of measurement and control system has been analyzed. The measurement and control software that provides a software experiment platform and the man-machine interface is succinct , friendly and easy to operate, these characteristic has been considered in the process of soft design. The multi-thread data acquisition and the on-line digital filter has guaranteed the accuracy of testing data acquisition, and the curve expansion and contraction algorithm partially realize the curve expansion and contraction in wide range, which is preciate for the curve detail. The software uses ADO to visit the Access experiment information database, and uses the least square method to process system rating data. With the aid of the Office automation technology, it can create report form by the template. The article puts forward and analyzes one kind of testing description language initially and the realization method of program control automation.The software of measurement and control system has been introduced briefly, and some experiment result has been provided, these indicate the application software to be reasonable.