DOI QR코드

DOI QR Code

Design and Implementation of Portable NMR Probe Magnet

  • Junxia, Gao (Faculty of Information Technology, Beijing University of Technology) ;
  • Yiming, Zhang (Faculty of Information Technology, Beijing University of Technology) ;
  • Jiashen, Tian (Faculty of Information Technology, Beijing University of Technology)
  • Received : 2016.12.28
  • Accepted : 2017.03.07
  • Published : 2017.03.31

Abstract

The NMR's probe consists of the static magnetic field generator (magnetic source) and the RF coil. It is very strict for the homogeneity of the static magnetic field intensity of the magnetic source, so the cost of the magnetic source is more expensive in the entire nuclear magnetic resonance instrument. The magnetic source generally consists of electromagnet, permanent magnet and superconducting magnet. The permanent magnet basically needs not to spend on operation and maintenance and its cost of manufacture is much cheaper than the superconducting magnet. Therefore, the permanent magnet may be the only choice for the static magnetic field device if we want to use the magnetic resonance instrument as an analyzer for production by reducing price. A new probe magnet was developed on the basis of the permanent magnet ring in this paper to provide a technological way for reducing the manufacturing cost, weight and volume of the existing nuclear magnetic resonance instrument (including MRI) probe.

Acknowledgement

Supported by : NMR

References

  1. Q. S. Xiao and J. Y. Zhu, Petroleum Geology & Experiment. 31, 97 (2009).
  2. Z. R. Ni, X. H. Cui, S. G. Sun, and Z. Chen, Spectroscopy and Spectral Analysis 31, 1 (2011).
  3. J. Lin, Q. M. Duan, and Y. J. Wang, Theory and Design of Magnetic Resonance Sounding Instrument for Groundwater Detection and ITS Applications, 1st Ed., Beijing Science Press, Beijing (2011).
  4. Y. M. Zhang, P. C. Xia, and Y. J. Yu, IEEE Trans. Appl. Supercond. 10, 763 (2000). https://doi.org/10.1109/77.828343
  5. H. B. Gao and Z. F. Zhang, Principle and Experimental Method of Nuclear Magnetic Resonance, 1st Ed., Wuhan University Press, Wuhan (2008).
  6. J. C. Mallinson, IEEE Trans. Magn. 9, 678 (1973). https://doi.org/10.1109/TMAG.1973.1067714
  7. K. Halbach, Nuclear Instruments and Methods 169, 1 (1980). https://doi.org/10.1016/0029-554X(80)90094-4
  8. C. S. Li, W. Wang, and Y. M. Du, J. Eng. Design. 15, 33 (2008).
  9. H. Jing, J. Wang, S. Wang, L. Wang, and L. Liu, Physical C: Superconductivity and Its Applications 426 (2007).
  10. R. Bjork, A. Smith, and C. R. H. Bahl, J. Magn. Magn. Mater. 384, 128 (2015). https://doi.org/10.1016/j.jmmm.2015.02.034
  11. C. K. Chandrana, J. A. Neal, D. Platts, B. Morgan, and P. Nath, J. Magn. Magn. Mater. 381, 396 (2015). https://doi.org/10.1016/j.jmmm.2015.01.011
  12. S. J. Lee, J. M. Kenkel, and D. C. Jiles, IEEE Trans. Magn. 38, 2991 (2002). https://doi.org/10.1109/TMAG.2002.803193
  13. J. Z. Chen and C. Y. Xu, IEEE Trans. Magn. 43, 3555 (2007). https://doi.org/10.1109/TMAG.2007.901888
  14. R. Bjork, C. R. H. Bahl, A. Smith, and N. Pryds, J. Appl. Phys. 104, 1 (2008).
  15. F. Bloch, O. Cugat, and G. Meunier, IEEE Trans. Magn. 34, 2465 (1998). https://doi.org/10.1109/20.717567
  16. J. Z. Chen, Y. M. Zhang, and C. Y. Xu, the Eighth International Conference on Electronic Measurement and Instruments (2007) pp. 330-336.
  17. D. Z. Qiao, Research and Optimization of Halbach Array based on Equivalent Magnetic Circuit Network Method. Ph.D. Thesis, Beijing University of Technology, Beijing (2010).
  18. X. Wang and Z. P. Wang, Power System Protection and Control. 37, 11 (2009).
  19. H. M. Liang, J. X. You, X. R. Ye, and G. F. Zhai, Trans. of China Electrotechnical Society 26, 46 (2011).
  20. L. J. Chi, Y. Yan, and Z. W. Wen, Power System Protection and Control. 39, 151 (2011).
  21. W. Y. Yang, W. B. Ren, G. F. Zhai, and Q. X. Li, Trans. of China Electrotechnical Society 26, 51 (2011).
  22. Y. J. Song, M. Zhang, and Y. Zhu, Trans. of China Elec trotechnical Society 29, 11 (2014).
  23. G. C. Zhang, C. Y. Liu, Q. Y. Chen, F. Chen, and X. D. Yang, Journal of South China University of Technology 42, 3 (2014).