在动态测量中应使测量头与工件保持接触,因此,必须合理地确定测量力的大小。
It is necessary during dynamic measurement to the measuring staff in contact with the workpiece, so that the measuring force acting on the workpiece must he determined rationally.
方法:在鼠模型中运用27G和33G大小的针头、羊模型中运用27G针头假注射磷酸盐缓冲盐水到椎间盘中,之后通过测量力学进行评价。
Methods. Mechanics were measured after sham phosphate buffered saline injection with a 27 G or 33 G needle in the rat and with a 27 G needle in the sheep.
That's how by either balancing the unknown force with a known force or by simply measuring the acceleration as I fall towards this podium and multiplying by mass, you can find the force that exerts on me.
我们既可以让未知力与已知力平衡,也可以只测量我冲向讲台时加速度的大小,再与我的质量相乘,都能求出作用在我身上的力的大小
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