由于利用激光来进行长度测量具有显著的优点以及对机械加工提出愈来愈高的精度要求,使得一些欧州主要的企业都采用了新的测量系统。一些制造厂都不断地在一些展览会上展出各种新产品。图1(照片省略)为一种激光干涉仪,它特别用于在工厂车间进行检测,无需对温度、空气压力以及空气湿度进行补偿。其误差极限在温度为20℃,大气压力为1022毫巴及相对空气湿度为50%时,为其整个测量范围5000毫 Due to the significant advantages of using laser for length measurement and the increasingly higher precision requirements for machining, some major European companies have adopted new measurement systems. Some manufacturers are constantly in the exhibition on display a variety of new products. Figure 1 (photo omitted) is a laser interferometer that is specifically designed for testing in the factory floor without the need for temperature, air pressure, and air humidity compensation. The error limit for the entire measurement range of 5000 milliamperes at a temperature of 20 ° C, an atmospheric pressure of 1022 mbar and a relative air humidity of 50%