基于VB的虚拟应变仪的设计

Design of Virtual Strain Gauge Base on VB

为解决传统应变仪测量中存在的设备匹配,调试麻烦等不足,采用虚拟仪器技术,以VB为开发平台,设计了虚拟应变仪。系统由应变检测模块,数据采集模块,人机接口模块组成。系统充分利用了AD7710的特点简化了硬件设计,使用虚拟仪器技术拓展了应变仪的功能,满足了应变测量内容多样性的要求。试验表明,系统不仅具有较高的测量精度和稳定性,取得理想效果,而且具有较大的拓展空间。

In order to resolve the shortcomings of strain gauge measurement, the virtual strain gauge is designed using virtual instrument technology and making VB as a development platform. Take full advantage and the characteristics of the AD7710 were used to simplify hardware design. The functions of the strain gauge was expanded with virtual instrument technology. The system consists of strain detection modules, data acquisition modules, human-machine interface module. Through the test, the desired effect was gotten. The system has high measurement accuracy and stability, and a larger space to expand.