一、前言 现代汽车、轴承等机械加工行业在高精度或主动测量中使用了许多气动量仪,其性能指标均达到相当高的水平。浮标式气动量仪主要用于静态测量,不足之处是:喷嘴下沉量小,测头寿命短。压力式气动量仪主要用于动态测量,仅起着界限触发开关的作 First, the foreword Hyundai Motor, bearings and other machining industries in the high-precision or active measurement of the use of a number of pneumatic gauges, the performance indicators have reached a very high level. Buoy pneumatic instrument is mainly used for static measurement, the downside is: nozzle sinking is small, short probe life. Pressure pneumatic instrument is mainly used for dynamic measurement, only acts as a limit trigger switch