在1981年西德汉诺威第4届欧洲机床工具展览会上,座标测量机的大量涌现,是另一类引人注目的展品。十几年前,测量用的标准设备是:检验量规的长度比较仪、检查两个座标尺寸的投影比较仪、等分装置及角度测量装置;较大型的工件是在面板上用高度规及针盘指示表测量尺寸的;测量中心距 At the 4th European Machine Tool Fair in Hannover, West Germany in 1981, the proliferation of CMMs was another striking exhibit. More than ten years ago, the standard equipment for measurement was: length comparator to check gage size, projection comparator to check two coordinate dimensions, aliquoting and angle measurement devices; larger workpieces were tested on the panel with height gauge and Needle dial gauge measuring size; measuring center distance