This paper made full use of machine vision's characteristics of non-contact, high efficiency and high precision, and develop an instrument for on-line measuring parameter of oil pipethread.
本文利用机器视觉非接触式、高效、高精度的特点，开发出基于机器视觉的石油管螺纹参数在线测量系统。
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The Model SPC/L301 viscometer has a 1 1/4" NPT thread to easily install into a process line using a "Tee", or into a large tank or pipe, using a weld ferrule.