[1] [1] BERKOVSKY B M, MEDVEDEV V F, KRAKOV M S. Magnetic Fluids Engineering and Applications ［M］. Oxford:Oxford University Press, 1993.

[2] [2] ZAHN M. Magnetic fluid and nanoparticle applications to nanotechnology ［J］. Journal of Nanoparticle Research, 2001, 3:73-78.

[3] [3] NAKATSUKA K. Trends of magnetic fluid applications in Japan ［J］. J. Magn. Magn. Meter., 1993,122:387-394.

[4] [4] RAJ K, MOSKOWITZ B,CASCIAARI R. Advances in ferrofluid technology ［J］. J. Magn. Magn. Mater., 1995, 149:174-180.

[5] [5] SEO J W,PARK S J. An experimental study of light modulator using magnetic fluid for display applications ［J］. V. Magn. Magn. Mater., 1999, 192: 499-504.

[6] [6] SEO J W, JEON S M, PARK S J, et al.. An experimental and numerical investigation of flat panel display cell using magnetic fluid ［J］. J. Magn. Magn. Mater. , 2002, 252: 353-355.

[7] [7] SEO J W, KIM H, SUNG S. Design and fabrication of a magnetic microfluidic light modulator using magnetic fluid ［J］. J. Magn. Magn. Mater., 2004, 272:e1787-e1789.

[8] [8] SEO J W,WANG X J. Magnetic-fluid microelectromechanical light modulator ［J］. Optics and Precision Engineering, 2005, 13(5): 542-547.

[9] [9] THOMPSON C A,WEBB K J, WEINER A M. Diffusive media characterization with laser speckle ［J］. Appl. Opt., 1997, 36(16):3726-3734.

[10] [10] LU R SH, TIAN G Y, DUKE G, et al.. Grinding surface roughness measurement based on the co-occurrence matrix of speckle pattern texture［J］. Appl. Opt., 2006,45(35):8839-8847.

[11] [11] LI SH X, SUN Y L, LI J ZH. The tracking method of digital speckle correlation using the sequential dynamical speckle patters and its applications ［J］. Acta Photonica Sinica, 2005, 34(7):1066-1068. (in Chinese)

[12] [12] YUN L N, MA SH P, LI X ZH, et al.. Experimental study of the fracture behavior of bamboo under tension based on digital speckle correlation method ［J］. Transactions of Beijing Institute of Technology, 2011, 31(3):258-261. (in Chinese)