As an indispensable and important member of nondestructive testing, industrial endoscopes are widely used in many industrial fields. Non Destructive Testing (NDT), also called non-destructive testing, refers to the use of sound, light, and magnetism on the premise of not damaging or not affecting the operational performance of the tested object and not damaging the internal organization of the tested object. And electricity and other characteristics, with modern skills and equipment to detect the seizure of the target is flawed, and gives specific information on defects (such as: size, nature, orientation, etc.) approach, with non-destructive, comprehensive, full range And so on. Nondestructive testing technology was introduced to our country in the 30s of last century. Many researchers have devoted themselves to the study and discussion of nondestructive testing skills. Now NDT has been widely applied in the manufacturing and repair of cars, the processing, protection and special inspection of industrial equipment In other occupations. NDT methods commonly used are: visual inspection, ray inspection, magnetic particle testing, ultrasonic testing, liquid penetration testing, leakage testing, and eddy current testing.
In the meantime, visual inspection can be divided into direct visual inspection and direct visual inspection of two detection skills. Direct visual inspection usually refers to the direct use of the human eye or the use of magnification multiples of 6 times the magnifying glass, the detection of the detected target. Direct visual inspection refers to the method of visual inspection by means of various optical instruments or devices. For example, the use of industrial endoscopes is a commonly used method of direct visual inspection.
Since the 70s of last century, China has started to use industrial endoscopes as an important instrument for NDT testing, mainly for the repair of civil aircraft. Later developed to the mid-1980s, continuous use of endoscopes in NDT operations in many occupations such as mechanical production, petrochemicals, electric power, pressure vessels, etc. In addition to the essential features of NDT, industrial endoscopy at this stage Has the following characteristics:
1. Industrial video endoscopic imaging clear, vivid colors. Due to the latest COMS camera module and high-brightness LED light source technology, which can generate high-resolution, wide viewing angle, bright clear picture, accurate reproduction of the detected target reality.
2. Brightness of the light source can be intelligently adjusted. When the object being inspected is a metal material, the work of detection and detection can be prevented from being affected by the reflection.
3. The probe has a full 360-degree orientation. Compared with the four directions, avoiding the repeated piercing the probe axial rotation operation, reducing the tedious detection of the job, improve job efficiency.
4. Set portability, ruggedness and high performance in one. Simple operation, light and portable, to meet the high requirements of various industrial applications for inspection operations.
 The advantages of industrial endoscope more than these, here a list of different. As a general rule, industrial endoscopes as an indispensable and indispensable member of non-destructive testing rely on their fundamental advantages of being "non-destructively tested without disassembling the equipment and without stopping the operation of the equipment" and are now widely used in Human eyes can not directly investigate the testing mission of the place, in the aviation, ships, electricity, pipelines and other occupations have become an indispensable inspection one of the things to become the leading non-destructive testing market an important skill.
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