皮皮学，免费搜题
登录
搜题
【简答题】
某工作台采用如图所示的直流电机丝杠螺母机构驱动，已知工作台的行程L=250mm，丝杠导程t=4mm，齿轮减速比为i=5，要求工作台位移的测量精度为0.005mm（忽略齿轮和丝杠的传动误差）。 （1）若采用高速端测量方法，将旋转编码器安装在电机输出轴上，确定旋转编码器的每转脉冲数。 （2）若采用低速端测量方法，将传感器与丝杠的端部直接相连，n s =500脉冲/转的旋转编码器是否合用？
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】The book, which was published by Cambridge University ,presents an elegant picture of the splendid culture of science and technology in ancient China.
A.
The Cambridge History of Ancient China
B.
Ancient China and its Enemies
C.
The World of Thought in Ancient China
D.
The Science and Civilizations in China
【简答题】.Mozi is considered being one of the greatest thinkers in ancient China.
【单选题】Which of the following is NOT included in the guided tour?
A.
Ancient China.
B.
Ancient Rome.
C.
Ancient Egypt.
D.
Ancient Greece.
【简答题】Who said“Leam the new while reviewing the old”in ancient China?（ ）
【单选题】In China, it is a serious crime to ____ ancient paintings out of the country.
A.
struggle
B.
smuggle
C.
sublet
D.
withdraw
相关题目：