Laser Ultrasonic Thickness Measurement

Wall thickness measurement of seamless steel tubes has been the most successful application for laser ultrasonics.

Laser ultrasonic thickness measurement.

Spacing of echoes gives thickness to high accuracy. 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. Thickness measurement in 1 2 steel. The basic components of a laser ultrasonic system are a generation laser a detection laser and a detector.

Laserlinc uses ultrasonic frequencies from 2 25 mhz to 50 mhz. Hence if any corrections need to be made they can be made immediately. Lasus today offers a standardised wall thickness measuring system for all the forming stages in the hot production of tubes. 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 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 ultrasonics uses lasers to generate and detect ultrasonic waves. In this application a laser ultrasonic system makes wall thickness measurements on tubes while they are in production. 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.