日本东京光音电波公司研制出一种图象外径测置系统—TYPE4000,已正式作为产品投放市场。这种外径测量系统,是为了炼钢厂在线材热轧成形过程中,能够高速稳定地自动测量其外径尺寸而研制的。目前,新日铁公司的君津、光制铁所等厂都已配备这种测量系统。本系统由射出平行光束的光源、摄取被测件图象的透镜系统、将图象的明暗转换为电信息的半导体图象传感器、控制电路、将电信息转换为尺寸表现出来的运算显示电路等几个部分组成。图象传感器由每隔15—25微米排 Japan’s Tokyo Light and Sound Company developed a kind of image outside diameter measurement system-TYPE4000, has been officially put on the market as a product. This diameter measurement system, is designed for steel mill hot wire rod in the hot-forming process, high-speed and stable measurement of its diameter size and developed. At present, Nippon Steel’s Kim Seung, Mitsuhiro Iron Works and other plants have been equipped with this measurement system. The system consists of a light source that emits parallel beams of light, a lens system that takes in the image of the device under test, a semiconductor image sensor that converts the light and shade of the image into electrical information, a control circuit that converts the electrical information into an operational display circuit of a size, etc. Several parts. Image sensors are arranged every 15-25 microns