Method and device for the non-destructive testing of objects using ultrasonics

US5628319A · kind A · utility

Assignee

• Nukem, LLC · DE

Inventors

• Roman Koch · Blankenbach, DE
• Thomas Kreutter · Goldbach, DE

Key dates

• Filing date: Nov 13, 1995
• Grant date: May 13, 1997
• Expiry date: Nov 13, 2015

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N2291/015
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

The invention concerns a method and device for nondestructive testing. Ultrasonic pulses are fed into the object under test. Ultrasonic waves emerging from the object are detected by an ultrasonic test head, converted into electrical signal and amplified. The signals are then sampled to produce measurement values, which are digitized and stored. From the digitized sampled values of the signals a function is obtained by interpolation, by means of which the peak values of the ultrasonic waves and/or the time of propagation of the wave at the peak is determined.