游标卡尺是一种精确测量物体长度的常用工具,其读数方法是高考常考考点.因学生对游标卡尺的测量原理不甚清楚,对读数方法只靠死记硬背,因而往往出现常考常错的现象,尤其是当遇到游标卡尺的结构稍有变化,即所谓“新式”游标卡尺时,学生更是错误百出.因此,真正弄清游标卡尺的测量 Vernier caliper is a commonly used tool to accurately measure the length of the object, the reading method is the college entrance examination often test sites because of the students on the vernier caliper measuring principle is not clear, the reading method rely on memorization, so often often test the phenomenon of constant error , Especially in the event of a slight change in the structure of the vernier caliper, the so-called “new” vernier caliper, the student is even more mistakes.Therefore, truly understand the vernier caliper measurements