首先按照控制方式的不同，数显式和屏显式通过手动操作送油阀和回油阀来控制进入油缸的流量,微机控制电伺服的是通过电脑操作液压伺服阀来控制的.在显示数据方面有所不同,数显式的主要显示力值、强度、力,时间曲线和具有明显屈服性能材料的屈服强度;屏显式和微机控制电伺服的显示各种力值、强度、延伸率、断裂强度、上下屈服点、弹性模量以及多种试验曲线.

Firstly, according to the different control modes, digital display andscreen display by manual operation of oil supply valve and the oil returnvalve to control the flow into the cylinder, the microcomputer control servois controlled by the computer operation of hydraulic servo valve. Differentdata on the display, digital display, the main force strength, force time curve and the yield strength, yield properties of materials; the screen display and computer controlled electro servo display all kinds of stress,strength, elongation, tensile strength, yield point, upper and lower elastic modulus and a variety of test curve.

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