Videoscope are used for inspection work where the area to be inspected is inaccessible by other means. Videoscope are optical instruments used for inspection work in areas that are inaccessible by other means. They may be rigid, flexible, or semi-rigid.

Boroscope (Optical instrument designed to assist Visual Inspection)

A boroscope is an optical instrument designed to assist visual inspection of narrow, difficult-to-reach cavities, consisting of a rigid or flexible tube with an eyepiece or display on one end, an objective lens or camera on the other, linked together by an optical or electrical system in between. The optical system in some instances is accompanied by illumination to enhance brightness and contrast. An internal image of the illuminated object is formed by the objective lens and magnified by the eyepiece which presents it to the viewer’s eye.

USES OF BOROSCOPE

Boroscope (Videoscope) is used for visual inspection work where the target area is inaccessible by other means, or where accessibility may require destructive, time consuming and/or expensive dismounting activities. Boroscope is mostly used in NDT testing techniques for recognizing defects or imperfections.

Boroscope commonly used in the visual inspection of-

• Aircraft engines
• Aero derivative industrial gas turbines
• Steam turbines
• Diesel engines
• Tube inspection in Heat Exchanger
• Boiler parts like Header, Boiler tube, steam drum linked lines
• Chiller tubes

Gas and steam turbines require particular attention because of safety and maintenance requirements. It is also used in manufacturing of machined or cast parts to inspect critical interior surface for burrs, surface finish or complete through-holes. Other common uses include forensic applications in law enforcement and building inspection, and in gunsmithing for inspecting the interior bore of a firearm.