试验机加载速度检测仪器的研制

The Instrument of Measuring Load Velocity for Test Machine

加载速度是试验机有效检测材料性能的关键 ,该文应用高精度、低成本的AD转换器AD770 5和力值传感器 ,研制了一套高精度、低成本的仪器 ,利用大屏幕液晶显示器来显示加载速度曲线 ,使得本仪器具有操作、携带方便的特点 ,并且在恒加载试验机系统的控制中得到了应用 ,其测量精度达到了 1N/s。

The load velocity of test machine is the key for measuring material performance, the instrument for measuring load velocity is developed using force sensor and AD7705 with high precision and lower cost in this paper. Velocity curve of load is display with LCD of large screen, the character of this instrument is easy operating and taking, It's precision is 1N/S in the practice use.