Laser Ultrasonic Thickness Measurement

In the laser ultrasonic testing system illustrated schematically here the small fiber coupled measurement head is placed near the part to be evaluated and the remote base station contains all the support equipment.

Laser ultrasonic thickness measurement.

The measuring principle is the proven ultrasonic technology which has now been further developed for use even at high temperatures by means of laser induction and detection. Laser ultrasonics uses lasers to generate and detect ultrasonic waves. Ultrasonic wall thickness measurement operating principle ultrasound is a pressure wave with a frequency greater than the upper limit of human hearing approximately 20 khz. In some cases ultrasonics can measure diameter and ovality eccentricity.

It is a non contact technique used to measure materials thickness detect flaws and carry out materials characterization. Lasus today offers a standardised wall thickness measuring system for all the forming stages in the hot production of tubes. Laserlinc uses ultrasonic frequencies from 2 25 mhz to 50 mhz. Thickness measurement in 1 2 steel.

For measuring material thickness the process involves the following. In this application a laser ultrasonic system makes wall thickness measurements on tubes while they are in production. Spacing of echoes gives thickness to high accuracy. The laserlinc ultragauge series of ultrasonic devices measure wall thickness or layer thickness and concentricity of clear or opaque plastic rubber glass and metal products like tubing hose pipe insulated wire and cable.