Abstract
This paper describes the design and realization of an online measurement device used for Joint Internal Thread. The online measurement device adopts the principle that the shaft section of two dimensional tooth profile of Joint Internal Thread was obtained with the passive contact method. A novel first derivative segmentation method based on the dynamic linear regression was used to classify and identify the two-dimensional tooth profile data. The basic and derived parameter of Joint Internal Thread was then quickly calculated. The tooth height of Joint Internal Thread was used as the traceable standard to calibrate the online measurement device. The comparison between field experiment data and manually measured data shows that the online measurement device is a rational design which works stably, shortens the measurement time largely, and improves the efficiency. The measured results satisfies the accuracy requirement.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
