Laser Survey

Laser survey is an advanced technology for determining the accurate surface profile of a pipe or other structure. The method projects a laser generated source onto the interior of a pipe or structure wall to scan the interior of a pipe and accurately determine its ovality, alignment, diameter and capacity.

A laser profiler is essentially a CCTV camera inspection unit with a slim laser probe mounted to the front. The laser projects a ring of light around the pipe interior, while software processes the information it receives from analysing the ring.

While a television image helps to estimate the dimensions of a pipe, a laser profiler provides hard data and dead-accurate readings within a fraction of a percentage point. And while the position of a CCTV unit is estimated by the length of cable fed into the pipe, the laser profiler can determine its own location within inches.

Laser profiling Applications:

• Determination of the structural shape, cross sectional area and defects
• Estimation of debris quantity
• Calculation of pipe capacity before and/ or after cleaning
• Rehabilitation/ replacement design information to improve selection of method
• Post rehabilitation verification of lining and subsequent capacity