NDT.net 1998 Aug, Vol.3 No.8

Needle or Square?
REPORTS AND OPINIONS

From the new Echo 37 produced Krautkramer
(Krautkramer on NDTnet)
TABLE OF CONTENTS

Two similar instruments

The US Air Force

Generation of ultrasonic pulses

Needle pulse

Excitation and oscillation amplitude

The square wave pulser

Advantages

Probe matching

Conclusions for the practical field

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/DB:Article /SO:Echo /AU:et_al /IN:Krautkramer /CN:DE /CT:UT /CT:instrument /ED:1998-08