Josef Krautkrämer
Josef Krautkrämer (born September 14, 1913 in Cologne ; † October 8, 2000 there ) was a German physicist and entrepreneur.
Life
Josef Krautkrämer studied physics at the University of Cologne and received his doctorate under Karl Försterling with an experimental thesis on drift phenomena in the ionosphere (the first in Germany). Until 1953 he was a lecturer . He developed the first operational ultrasonic testing device for non-destructive material testing using ultrasound . The seven children Johannes, Angelika, Ursula, Martin, Stefan, Andreas and Georg came from his marriage to his wife Grete Krautkrämer, née Caspers.
Josef Krautkrämer died in 2000 at the age of 87 and was buried in Cologne's Westfriedhof (hallway D).
The enterprise
In 1949 he and his brother Herbert Krautkrämer founded the company of the same name for the development and marketing of ultrasonic testing devices. In 1949, the first operational impulse sound device for testing industrial materials was presented in Germany. In 1951 the first foreign representations were established. The company was initially based in Cologne-Klettenberg , from 1967 in Hürth- Efferen . In 1971 it was sold first to Smith-Kline, then to the American concern Emerson Electric Company . In 2000, Agfa-Gevaert took over the Krautkrämer Group. It has been part of the General Electric Group since 2004 and of Baker Hughes since 2019 . Within this group the company belongs to Waygate Technologies.
Fonts
- Migration phenomena of rapid field strength fluctuations of ionospheric echoes. In: Arch. Electr. Transmission. 4, 1950, pp. 133-138.
- with Herbert Krautkrämer, Otto Rüdiger : A supersonic device for non-destructive testing of materials. Steel iron, 1949.
- Ultrasonic testing in the service of accident prevention. 1957.
- Defect size determination with ultrasound. In: Report of the Materials Committee of the Association of German Ironworkers. No. 1211. Steel iron, 1959.
- with Herbert Krautkrämer: Materials testing with ultrasound. 5th edition. Springer, Berlin 1986, ISBN 3-540-15754-9 .
- with Herbert Krautkrämer: Ultrasonic Testing of Materials. 4th edition. Springer, Berlin 1990, ISBN 978-3-540-51231-8 .
literature
- Ulrich Soenius, Wilhelm Jürgen: Kölner-Personen-Lexikon. Greven, Cologne 2007, ISBN 9783774304000 , p. 300.
- Ulli Kreikebaum: From workshop to global corporation. In: Kölner Stadtanzeiger - November 11, 2009.
Web links
- Contribution to the history of ultrasonic testing in Germany and France , V. HUSAREK, JG CASTEL, DGZfP annual conference 2001, non- destructive testing
Individual evidence
- ↑ Handelsblatt: Ultrasound devices: Agfa approved takeover of Krautkrämer , July 6, 2000.
| personal data | |
|---|---|
| SURNAME | Krautkrämer, Josef |
| ALTERNATIVE NAMES | Herb shopper |
| BRIEF DESCRIPTION | German physicist, entrepreneur |
| DATE OF BIRTH | September 14, 1913 |
| PLACE OF BIRTH | Cologne |
| DATE OF DEATH | October 8, 2000 |
| Place of death | Cologne |