Remote Video Inspection

Applus RTD have the answer has an extensive range of camera systems, including the unique capabilities of the video imagescope and video analyser are available for site inspection work.

Brief Description

The video imagescope camera used in conjunction with the video analyser provides a high-quality viewing capability for otherwise inaccessible locations.

The system incorporates a video camera into a flexible insertion tube approximately 8mm in diameter. The flexible tube comes in either a 3-metre or 7-metre length.

Full colour images are provided on the screen in real time. The equipment produces a standard composite video signal, which allows the complete inspection to be stored to super VHS video for future analysis or enhancement. Up to 250 individual single images can also be stored, or saved to disc.

The camera tube may be inserted into very small openings, requiring only slight clearance over the tube diameter. The end of the tube can be moved through 180 degrees and rotated allowing greater all round viewing.

The system finds typical plant and equipment problems such as corrosion pits, surface breaking cracks, tube blockages, imperfect weld profiles and so forth. If required, defects are sized by using a sophisticated 3D measurement technique. Applus RTD was the first UK company to receive the software incorporating this technique.

The video imagescope works as a stand-alone inspection system for plant and equipment. In conjunction with other NDT systems such as IRIS and Centest 91, it provides a more detailed examination of small diameter pipe of 8mm bore or greater. Of particular value is the ability of the video imagescope to examine around bends looking at susceptible areas for erosion and corrosion.

Capabilities

Simple to operate.
Four-way angulation and a wide field of view.
Can avoid the need for vessel entry.
A digital imaging system allows storage and also additional enhancements to image.
Live colour images.
Complete inspection stored to video.
Hard disk storage of selected items.
Computer enhancement of stored images.
Side by side display of two images for comparison.
Operating temp. 0-50C in Air / 10-30C in Water.

Limitations

Flexible portion must not be bent into a radius of 60mm or less.
Camera should not be allowed to strike hard surfaces.
Camera end must not be forced into any orifice.
Lighting can be difficult to set for maximum effectiveness (e.g. at angle to surface).
The video imagescope camera has a limited field of view.

Preparation

Preparation is dependant on the application. In some instances, such as scrutinising small diameter tubes for pits, surface preparation may be necessary.

Services Required