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Ultrasonic Testing System
ECHOGRAPH 1155
System ALPT/RPTS

Ultrasonic Inspection of
Round Billets
Leaflet

System ALPT/RPTS

Key point of the billet inspection system is the coupling technique. Ultrasonic coupling with guided water jets allows almost wear-free probe holders and short change-over times for different billet diameters. This technique is also called squirter technique and describes a water column between probe and billet. The distance between probe and billet surface is in the order of several centimetres which leads to long-lasting probes. Instead of dual element probes (formerly used for gap coupling in older testing systems), immersion type probes with large bandwidth are used. Since the wear shoes do not have to be changed for varying billet diameter, short change-over times can be ensured. In combination with the electronic distance amplitude correction (DAC) a constant testing sensitivity is achieved for all flaw depths.

Current Dates


13 - 17 November 2017
15th APCNDT, Singapore

16 - 20 April 2018
Tube 2018, Duesseldorf

24 - 27 April 2018
32nd Control, Stuttgart

11 - 15 June 2018
12th ECNDT, Gothenburg

» more



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