The measurement and control of diameter in large-scale part processing

In-process dimensional inspection sensors

“…Second, Zhang et al [9] presented a doubleedges laser-scanned large diameter online dynamic measurement and control system to measure and control diameter in measuring range of 1000-2000 mm. The method of inspection is based on laser-scanning measuring technology and grating displacement-measuring technology.…”

Automatic measurement method for the size of large forgings based on scattering on rough surface

“…Large forgings are the important basic parts of major equipment manufacturing industry and major engineering construction, as well as the premise of developing advanced equipment manufacturing industry. The improvement of manufacturing technology of large forgings has become an important reflection of developmental level of a nation's national defence [1, 2]. However, in the process of production, forgings are likely to become waste product because of the inaccuracy of measurement, which undoubtedly results in huge waste of resources.…”

An indirect accuracy calibration and uncertainty evaluation method for large scale inner dimensional measurement system

“…Diameter, as a crucial parameter of pipes, determines the quality and successful assembling of pipes. [3][4][5] Because of large scale pipes' disadvantages such as limited production, high costs and huge scale, diameter measurement becomes very essential. 6 The main methods to detecting diameter nowadays include follow: micrometer caliper method, baseline rod method 7 , CCD edge extraction 8 , laser interferometer method 9 , roller method 10 etc.…”