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试验机是用来进行材料力学性能指标测定的设备,在各类材料的产品质量检验、生产过程质量控制、材料科学研究和教学试验中都需要应用试验机来进行力学性能测试。而其中在静态万能材料试验机上的拉伸、压缩、弯曲、剪切等试验尤为广泛。静态万能试验机为数众多,遍布于全国各地,大部分不具备电测能力,以手动调整进、回油阀的方式运行,试验手段落后,有劳动量大和测试结果不准确等缺点。若对其指示、记录系统及控制系统进行适当的技术改造,则可以充分地发挥设备的潜能,大大提高其技术性能及使用价值,更好地为材料研究、质量控制和实验教学服务。本系统将先进的虚拟仪器技术、传感技术、测试技术和控制技术相结合并应用于静态试验机,来实现力学性能参数的自动检测,其中试验数据的实时采集、自动处理分析和试验中的加载速率控制是本系统研究的重点。本系统在充分掌握大量试验机的动态信息的基础上,采用虚拟仪器技术,进行了静态万能材料试验机数控化系统的硬件搭建及软件设计。
Testing machine is used to measure the mechanical properties of materials, equipment, materials in various types of product quality inspection, quality control of the production process, materials science research and teaching experiments are required to use the test machine for mechanical properties testing. And in the static universal material testing machine tensile, compression, bending, shear test is particularly wide. Static universal testing machine a large number, all over the country, most do not have electrical measurement capabilities to manually adjust the way into the back to the valve operation, testing tools behind, with a large amount of labor and the test results are not accurate shortcomings. If the instructions, recording systems and control systems for proper technological transformation, you can give full play to the potential of equipment, greatly improving its technical performance and value, better for material research, quality control and experimental teaching services. The system will be advanced virtual instrument technology, sensing technology, testing technology and control technology combined with the static testing machine, to achieve the mechanical properties of automatic detection parameters, including real-time acquisition of test data, automatic processing and analysis and testing Loading rate control is the focus of this system. The system fully grasp the dynamic information of a large number of testing machine based on the use of virtual instrument technology, the static universal testing machine numerical control system hardware and software design.