Magnetostriction strain measurement: heterodyne laser interferometry versus strain gauge technique
- Author
- Setareh Gorji Ghalamestani (UGent) , Lieven Vandevelde (UGent) , Joris J.J. Dirckx and Jan Melkebeek (UGent)
- Organization
- Abstract
- Deformation of the ferromagnetic material, known as magnetostriction, causes vibrations and noise of electrical machines and transformer cores. A setup by using heterodyne laser interferometers has been built to measure the magnetostriction strains as a function of the applied magnetic field. The measurement results on a sample of nonoriented electrical steel are presented in this work. These results are compared with those obtained by using a strain gauge setup. The laser measurements are less disturbed by noise, especially for measurements under low amplitude magnetisation. In addition, contrary to the strain gauge samples, the sample preparation for the laser setup does not require removal of the protective coating. Measurement results on the coated samples are highly helpful for the calculation of the magnetostriction noise of the device. The coated samples show smaller deformation, since the coating applies tensile stress to the material. For the case of the same nonoriented material the reduction of the magnetostriction strains in amplitude is about 20%.
- Keywords
- FORCES, TRANSFORMER CORES
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Citation
Please use this url to cite or link to this publication: http://hdl.handle.net/1854/LU-3032344
- MLA
- Gorji Ghalamestani, Setareh, et al. “Magnetostriction Strain Measurement: Heterodyne Laser Interferometry versus Strain Gauge Technique.” 5th International Conference on Optical Measurement Techniques for Structures and Systems, Proceedings, edited by J Dirckx and J Buytaert, Shaker, 2013, pp. 164–74.
- APA
- Gorji Ghalamestani, S., Vandevelde, L., J.J. Dirckx, J., & Melkebeek, J. (2013). Magnetostriction strain measurement: heterodyne laser interferometry versus strain gauge technique. In J. Dirckx & J. Buytaert (Eds.), 5th International Conference on Optical Measurement Techniques for Structures and Systems, Proceedings (pp. 164–174). Shaker.
- Chicago author-date
- Gorji Ghalamestani, Setareh, Lieven Vandevelde, Joris J.J. Dirckx, and Jan Melkebeek. 2013. “Magnetostriction Strain Measurement: Heterodyne Laser Interferometry versus Strain Gauge Technique.” In 5th International Conference on Optical Measurement Techniques for Structures and Systems, Proceedings, edited by J Dirckx and J Buytaert, 164–74. Shaker.
- Chicago author-date (all authors)
- Gorji Ghalamestani, Setareh, Lieven Vandevelde, Joris J.J. Dirckx, and Jan Melkebeek. 2013. “Magnetostriction Strain Measurement: Heterodyne Laser Interferometry versus Strain Gauge Technique.” In 5th International Conference on Optical Measurement Techniques for Structures and Systems, Proceedings, ed by. J Dirckx and J Buytaert, 164–174. Shaker.
- Vancouver
- 1.Gorji Ghalamestani S, Vandevelde L, J.J. Dirckx J, Melkebeek J. Magnetostriction strain measurement: heterodyne laser interferometry versus strain gauge technique. In: Dirckx J, Buytaert J, editors. 5th International Conference on Optical Measurement Techniques for Structures and Systems, Proceedings. Shaker; 2013. p. 164–74.
- IEEE
- [1]S. Gorji Ghalamestani, L. Vandevelde, J. J.J. Dirckx, and J. Melkebeek, “Magnetostriction strain measurement: heterodyne laser interferometry versus strain gauge technique,” in 5th International Conference on Optical Measurement Techniques for Structures and Systems, Proceedings, Antwerp, Belgium, 2013, pp. 164–174.
@inproceedings{3032344, abstract = {{Deformation of the ferromagnetic material, known as magnetostriction, causes vibrations and noise of electrical machines and transformer cores. A setup by using heterodyne laser interferometers has been built to measure the magnetostriction strains as a function of the applied magnetic field. The measurement results on a sample of nonoriented electrical steel are presented in this work. These results are compared with those obtained by using a strain gauge setup. The laser measurements are less disturbed by noise, especially for measurements under low amplitude magnetisation. In addition, contrary to the strain gauge samples, the sample preparation for the laser setup does not require removal of the protective coating. Measurement results on the coated samples are highly helpful for the calculation of the magnetostriction noise of the device. The coated samples show smaller deformation, since the coating applies tensile stress to the material. For the case of the same nonoriented material the reduction of the magnetostriction strains in amplitude is about 20%.}}, author = {{Gorji Ghalamestani, Setareh and Vandevelde, Lieven and J.J. Dirckx, Joris and Melkebeek, Jan}}, booktitle = {{5th International Conference on Optical Measurement Techniques for Structures and Systems, Proceedings}}, editor = {{Dirckx, J and Buytaert, J}}, isbn = {{9789042304192}}, keywords = {{FORCES,TRANSFORMER CORES}}, language = {{eng}}, location = {{Antwerp, Belgium}}, pages = {{164--174}}, publisher = {{Shaker}}, title = {{Magnetostriction strain measurement: heterodyne laser interferometry versus strain gauge technique}}, year = {{2013}}, }