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万能材料试验机一般多采用摆锤式测力机构,配备A、B、C三个摆锤,有A、B、C三个刻度盘与其对应。其中:摆锤A固定在摆杆上,对应A度盘读数;摆锤A+B,对应B度盘读数,摆锤A+B+C,对应C度盘读数。试验时,根据预计可达到的载荷选取合适的度盘,并悬挂相应的摆锤。当使用A、C度盘时,摆锤的悬挂是不会发生差错的,因为A度盘的摆锤A是固定在摆杆上的,C度盘是将摆锤A、B、C全挂上的。但是,当选用B度盘时,就有可能将异号摆锤C错挂上去。一旦发生了这种情况,那么从B度盘上读得的示值就不是真实载荷值了。有什么
Universal testing machine generally use pendulum force measuring mechanism, with A, B, C three pendulum, with A, B, C three dial their counterparts. Among them: pendulum A fixed on the pendulum, corresponding to the reading of A dial; pendulum A + B, corresponding to B dial reading, pendulum A + B + C, corresponding to C dial reading. During the test, select the appropriate dial according to the expected load and suspend the corresponding pendulum. When using A, C dial, the pendulum suspension is not wrong, because the A dial A pendulum is fixed on the pendulum, C dial is the pendulum A, B, C hanging Up. However, when using the B dial, it is possible to hook the odd-numbered pendulum C wrongly. Once this happens, the readings read from the B-dial are not real load values. have what