Videoscopes are a vital piece of equipment used for the inspection of aviation engines. The visual inspection tool is used to detect the state of internal engine components without disassembly. Aircraft maintenance crew uses the device to inspect hard-to-reach areas of the engine and detect worn out parts.
Quality of image is critical in aviation engine inspection since any defect in the engine can result in loss of lives. Various factors may determine the quality of images taken by the imaging tool. Here are some of the factors that influence the videoscope inspection results.
1. Distance from Detection Area
The object being measured should be viewed from a close range. Images will appear distorted if the object is viewed from a distance. While computer software can correct distortion, it will still not result in a high quality image.
The object being viewed should be as close as possible to the probe. This will minimize distortion and create accurate images. Videoscope displays images with the greatest detail when the image sensor ranging between 5 and 25 mm from the detection area. Moreover, the angle between the probe and the object should be 45 degrees or 90 degrees for optimal image quality.
2. Lighting Condition
The object being monitored is illuminated by the videoscope light source. The color intensity of the illuminating source should be more than 2600 lm for the best results. Additionally, the color temperature should be over 5600K for optimal image results.
3. Surface Reflectivity
Surface reflectivity also affects the quality of the image. The reflectivity of the surface is affected by the roughness of the surface and the type of material. The intensity of the light should be adjusted depending on the surface reflectivity to obtain clear results.
4. Device Camera Resolution
Camera resolution significantly affects the image clarity. Devices with a high quality camera lens can generate images in detail. Higher resolution cameras are also able to display the results with magnification. Moreover, they can display the object with minimal distortion and other detectable image defects.
5. Videoscope Technology
The technology of the videoscope also plays a part in determining the quality of the image. Fiberscope uses fiber optics to transfer images from the tube to the viewer’s display panel. Images displayed by the device are of comparable technology to a night vision camera.
Borescopes are also a type of videoscope that display images using a charged couple device (CCD). The CCD transmits images electronically to the camera control unit. The result is a high quality real-time image of the object. The devices are more suitable for aviation engine inspection due to the high quality results.
The position of the videoscope should be changed to test the optimal viewing angle. The distance, angle, lighting and resolution should be appropriate for the best display. Moreover, the display technology plays an important part in image results.
Borescopes are recommended as they display a better quality image as compared to fiberscopes. Contact USA Borescopes to buy the latest model borescopes for aircraft and helicopter engine maintenance. We also offer borescope sales and repair services to both individuals and commercial jet owners.
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