The Observed Linearity and Detection Response of Magnetic Fluid Concentration Magnetometry - A Theoretical and Experimental Description

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Mercer, Tim ; Bissell, Philip (2013)

The response of a Scanning Column Magnetometer (SCM) used to measure concentration profiles of columns of magnetic dispersions has been investigated experimentally and theoretically. From the observed linearity of the total SCM output signal as a function of magnetic particle concentration, a consistent theoretical description is developed that assumes a small sensing coil field and no on-going particle agglomeration. Further theoretical development resulted in a detection coil response function that compared well with the measured response of a delta function approximation in the form of a thin ferrite disk and means that the SCM response function and spatial resolution may be determined from the coil design alone.
  • References (9)

    [1] J. R. Lin, Tribol. Int., vol. 49, pp. 110-115, May 2012.

    [2] J. Cherubini et al., IEEE Trans. Magn., vol. 47. pp. 137-147, Jan. 2011.

    [3] T. Sen et al., RSC Adv., vol. 2. pp. 5221-5228, Mar. 2012.

    [4] T. Mercer and P. R. Bissell, Eur. Phys. J. Web of Conferences,.vol. 40, pp. 01003p1-01003p4, Jan. 2013.

    [5] R. Zboril, M. Mashlan and D. Petridis, Chem. Mater., vol. 14 pp. 969- 982, Mar 2002.

    [6] The International Centre for Diffraction Data, JCPDS File 24-72, http://www.icdd.com/

    [7] R. W. Chantrell, J. Popplewell, and S. W. Charles, IEEE Trans. Magn., vol 14, pp. 975-977, Sep 1978.

    20 40 60 Magnetic PVC/Total PVC (%) 80

    [8] B. K. Middleton, in Magnetic Recording Technology, 2nd Ed., C. D. Mee and E. D. Daniel, Eds. New York: McGraw Hill, 1996, pp. 2.64-2.65. 800 a' ..)600 u (a400 ) 800 .q ...(taseup 760000 'reF2000-2 0Dist2ance4from6bot8tom1o0f tu1b2e (c1m4) 16 q reF 500

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