What are the parameters of a duct endoscope?

The performance parameters of the endoscope (which can be simply understood as a special camera) are as follows: Power supply power supply system design, light type and intensity of illumination, quality/photographic image sensor chip (affect the sharpness of the image), length, diameter, depth of field, field of view Angle, lens (some endoscopic lenses can measure position, most of the endoscope can see can't measure), focal length (usually have a scope and shape in the factory production, Some endoscope products can adjust the focal length), as well as other functions, such as waterproofing standards, video capture record output preservation and so on.

1. Check the size of the extension hole. Checking the size of the protruding hole will limit the size of the tube diameter (or working diameter) of the endoscope.

2. Approach path of the detection point. If the approach path to the detection point is short and linear, it is more suitable to use rigid endoscope for detection work; If the approach path is curved (or tortuous), the flexible endoscope or flexible flexible electronic image endoscope must be used

3. Check the position of the extension hole. During testing, the objective lens of the endoscope must be extended close enough to the detection point (or subject) before testing can be carried out. Checking the position of the protruding hole will determine the observation Angle, observation direction, approach route and working length of the endoscope.

4. Distance from objective lens to subject. Whether using standard or high intensity light sources, the distance between the objective lens and the subject will have a direct impact on the lighting requirements, and the objective lens needs to use the best Angle of view to obtain the best image resolution and maximum magnification.

5. The size of the defect. The size of the defects varied widely, ranging from hair-fine cracks to larger damage cracks. The size of these defects is an important factor in selecting the magnification, Angle of view, focusing power and lens resolution of the endoscope in order to obtain appropriate and clear defect images.

6. Contour size of the subject. The profile of the subject includes the size of the whole subject, the cracks or cracks, and the deformation, which is one of the most important factors in determining the Angle of view and the brightness of the light source.

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