What is the principle of industrial CT testing? Differences from radiographic testing

Date：2023-05-25 15:45:33Views：335

Industrial CT testing is an advanced non-destructive testing technology that can be used to detect internal defects and damages in products such as metals, plastics, and ceramics. Compared with traditional radiographic testing methods, industrial CT testing has higher accuracy and a wider range of applications. This article will provide a detailed introduction to the principles of industrial CT testing and its differences from traditional radiographic testing methods.

The principle of industrial CT testing is to use X-rays to pass through the object to be tested and convert its internal structure into a 3D image through a series of imaging techniques. The specific steps include the following: first, the item to be tested is placed on a rotating platform and scanned using an X-ray beam. X-rays pass through objects and are captured by detectors. Next, the collected signals are transmitted to a computer, which processes the data based on factors such as the absorption rate and density of the detected object to generate a three-dimensional image.

Compared to traditional radiographic testing methods, industrial CT testing has higher accuracy and a wider range of applications. Traditional radiographic inspection methods are mainly used to detect defects and damages on the surface of metal parts, while industrial CT inspection can detect internal defects and damages of objects and obtain more and more detailed information. For example, it can detect defects in parts, thickness of shell materials, and also detect subsurface defects inside composite materials.

In addition, compared to traditional radiographic testing methods, industrial CT testing also has better safety. When using industrial CT detection technology, we can scan according to the special requirements of the tested item to avoid any impact on humans. In addition, when using industrial CT technology for testing, the tested item does not need to undergo any physical deformation or be damaged by experiments, and there is no need to dispose of the product, and the testing speed is also faster.

However, industrial CT detection technology also has some drawbacks. Due to the use of X-rays in this technology, there is a radiation risk. In addition, the cost of testing through industrial CT detection technology is high, and this technology requires professional technical personnel. However, these shortcomings can be addressed through appropriate safety measures and appropriate training of professional technical personnel.

In summary, industrial CT testing is a very advanced non-destructive testing technology that can be used to detect internal defects and damages in products such as metals, plastics, and ceramics. Compared with traditional radiographic testing, industrial CT testing is safer and more reliable, suitable for more application scenarios.