Vorrichtung zum Untersuchen von Grenzflaechenbereichen mit Ultraschall
Date Issued
2003
Author(s)
Hirsekorn, S.
Fassbender, S.
Patent No
1997-19711863
Abstract
The examination device has at least one transmitter (5) for providing ultrasound signals of variable amplitude directed onto the boundary surface (14) and a cooperating receiver (17) for receiving a base frequency of the ultrasound signals and at least one harmonic. The frequency amplitude of the detected signals is evaluated, with the amplitude of the base frequency combined with double the negative value of the harmonic amplitude to provide a measured output value. USE - For checking absolute bonding force at boundary surface. ADVANTAGE - Quantitative evaluation of bonding force.