伊利诺斯州M. E. A公司研制成一种可在绕制或非绕制过程中测量任何线材直径的自动测长数据系统。这种系统可使长度测量达到0.2%的保险值,并可自动提供线材直径、重量和平均尺寸等参数。如采用普通机械系统,由于精度不足而使厂家不得不增加一些长度,以保证顾客收到最小预订的 M. E. A of Illinois has developed an automatic length measurement data system that measures the diameter of any wire during winding or unwinding. This system enables length measurements to be as safe as 0.2% and automatically provides parameters such as wire diameter, weight and average size. Such as the use of ordinary mechanical systems, due to lack of precision manufacturers have to increase the length of some to ensure that customers receive the smallest booking