Electrodynamic instrument transformer head

US4480477A · kind A · utility

Assignee

• Nukem, LLC · DE

Inventors

• Gerhard Huschelrath · Laufach, DE
• Ewald Kowol · Reiskirchen, DE
• Ursula Orthen · Hanau, DE

Key dates

• Filing date: Jun 10, 1982
• Grant date: Nov 6, 1984
• Expiry date: Jun 10, 2002

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N2291/0422
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

An electrodynamic instrument transformer head (10) for the non-destructive testing of materials by means of ultrasonics has a pole shoe (20) provided with exciting and receiving coils (14, 16), said pole shoe comprising a slotted end section (24) to prevent a formation of eddy currents. The end section (24) thereby is continuing into a basic body (22) preferably being made of a different material.