Laser Profilometry

Definition - What does Laser Profilometry mean?

Laser profilometry is a procedure that measures a surface profile to quantify the roughness of the surface. This procedure uses equipment known as laser profilometers or laser mappers.

A laser mapper makes external corrosion mapping and laser profilometry practical when used in conjunction with automatic scanner systems. The laser beam intensity self-adjusts based on dull or shiny surface conditions to obtain a depth reading without data loss. Scanning speeds up to 30 inches (76 cm) per second are possible.

Corrosionpedia explains Laser Profilometry

Laser profilometers are used to perform laser profilometry. Profilometers are in the category of optical profilometers and do not make physical contact with the surface of the object.

A typical laser profilometry system includes a small and lightweight controller box with a 12-volt DC power supply and encoder cable. It also includes a laser sensor that mounts on automatic or manual scanning equipment and directs a small laser beam onto the surface. The beam distance is measured and interpolated into a thickness value using acquisition and analysis software. The laser depth range is 25 mm of displacement with accuracy within +/-0.002 inches (0.05 mm).

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