关键词: 仪器仪表技术 , 座圈 , 大直径测量 , 圆度误差 , 非接触检测

Abstract: Based on laser displacement inspecting principle and modern photoelectric sense technology, a kind of non-contact measurement technique was put forward, the roundness error and the diameter of saddle ring 1.e. large-size rotary solid part can be measured by the designed system. The building up, the principle and the mathematical model of the system were discussed, the measuring error was ana?lyzed, and the real time computer data processing system based on LabVIEW language platform was designed. The experiment result confirms that the precision of the system is up to 土 0.02 mm.

Key words: technology of instrument and meter , saddle ring , large diameter measurement , roundness error , non-contact inspecting