Industrial computed tomography (industrial CT) is a non-destructive testing technology that obtains the internal structure information of objects based on the principle of different attenuation of rays by different substances. It plays an important role in the non-destructive testing and quality assessment of key components in important industries in China. The use of industrial CT technology to achieve high precision measurement of important industry precision parts is the current research difficulties and hot spots in the field of industrial CT. With the development of science and technology, the traditional scribing and cutting measurement method can not meet the demand of precision parts measurement. The measurement method based on industrial CT image is an important technical means to solve the difficult problem of precision parts measurement. We can process its Housing and internal precision parts. It can be manufactured by CNC engraving, Sand Casting, transparent acrylic(PMMA/PC) 3D Printing.

The specific process of CT image measurement algorithm is as follows:
(1) Industrial CT of precision parts was segmented by WT-RSF method
(2) When the element to be measured is a circle or Angle, the least square method is used to fit the equation of the circle or the equation of the line.
(3) Calculate the diameter of the circle to be measured or the Angle between two lines through the equation of the circle or the straight line.
(4) When the size to be measured is the wall thickness, the minimum distance search method is used to measure the minimum wall thickness of the location to be measured, and the minimum wall thickness is searched in the neighborhood of the location to be measured, and the average value is taken as the actual wall thickness.

Using industrial CT to measure the internal dimensions of precision parts has gradually become an important technical means of product quality control, and CT image segmentation and data fitting are important and difficult problems in industrial CT image measurement. Guangdong South China Testing Technology Co., Ltd. focuses on industrial CT testing failure analysis material testing and analysis of advanced manufacturing laboratory, non-destructive testing, scanning electron microscopy instrument analysis, chemical analysis, physical analysis, slice and metallographic testing, environmental reliability testing and many other laboratories, providing - station type material testing, failure analysis and testing report