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  4. Quantum Magnetometry for Material Testing
 
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2023
Conference Paper
Title

Quantum Magnetometry for Material Testing

Abstract
Optically pumped zero-field magnetometers (OPM) are extremely sensitive to small variations in magnetic stray fields. However, their spatial resolution limits their application in non-destructive test-ing. With the help of flux guides these challenges can be overcome. This paper shows an example how the combination of OPM and flux guide can be used to measure magnetic stray fields of partial penetration weld seams in ferromagnetic steel sheets from the bottom side.
Author(s)
Thiemann, Kerstin  orcid-logo
Fraunhofer-Institut für Physikalische Messtechnik IPM  
Blug, Andreas  
Fraunhofer-Institut für Physikalische Messtechnik IPM  
Bertz, Alexander  
Fraunhofer-Institut für Physikalische Messtechnik IPM  
Mainwork
SMSI 2023, Sensor and Measurement Science International  
Conference
Conference "Sensor and Measurement Science International" 2023  
DOI
10.5162/SMSI2023/A6.3
Language
English
Fraunhofer-Institut für Physikalische Messtechnik IPM  
Keyword(s)
  • Quantum sensing

  • Non-destructive testing

  • Magnetic testing

  • Ferromagnetic materials

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