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.

In this application a laser ultrasonic system makes wall thickness measurements on tubes while they are in production. Thickness measurement in 1 2 steel. 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. Wall thickness measurement of seamless steel tubes has been the most successful application for laser ultrasonics.

Hence if any corrections need to be made they can be made immediately. It is a non contact technique used to measure materials thickness detect flaws and carry out materials characterization. The basic components of a laser ultrasonic system are a generation laser a detection laser and a detector. In some cases ultrasonics can measure diameter and ovality eccentricity.

For measuring material thickness the process involves the following. Spacing of echoes gives thickness to high accuracy. Laser ultrasonics uses lasers to generate and detect ultrasonic waves. Laserlinc uses ultrasonic frequencies from 2 25 mhz to 50 mhz.