Laser Ultrasonic Thickness Measurement

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.

Laser ultrasonic thickness measurement.

Laserlinc uses ultrasonic frequencies from 2 25 mhz to 50 mhz. Wall thickness measurement of seamless steel tubes has been the most successful application for laser ultrasonics. 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. In this application a laser ultrasonic system makes wall thickness measurements on tubes while they are in production.

It is a non contact technique used to measure materials thickness detect flaws and carry out materials characterization. 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. In some cases ultrasonics can measure diameter and ovality eccentricity. Spacing of echoes gives thickness to high accuracy.

Thickness measurement in 1 2 steel. The basic components of a laser ultrasonic system are a generation laser a detection laser and a detector. For measuring material thickness the process involves the following. Lasus today offers a standardised wall thickness measuring system for all the forming stages in the hot production of tubes.