[1] G. I. Johnson, A new-type of calibration rig for wind tunnel balances, in ICIA SF-89 Record IEEE (1989) p.562.
[2] C. A. Wang, Experiments and Measurements in Fluid Mechanics (in Chinese) 12, 92 (1998).
[3] S. S. Welch, J. I. Clemmons, K. J. Shelton, and W. C. Duncan, Optical position measurement for a large gap magnetic suspension system, in NASA Technical Paper (1994) p. 3438.
[4] M. Vincze, J. P. Prenninger, and H. Gander, J. Robotics Research 13, 305 (1994).
[5] C. E. Lin and A.-S. Hou, IEEE Trans. On Instru. and Measure. 44, 8 (1995).
[6] H. Tsutsumi, A. Kyusojin, M. Nagaya, and K. Nokihara, J. Precision Technology (in Japanese) 64, 1752 (1998).
[7] C. Kanamori and M. Kajitani, J. Precision Technology (in Japanese) 64, 1143 (1998).
[8] C. K. Sun, F. Q. Zhou, Z. Wang, and S. H. Ye, J. Tianjin University (in Chinese) 31, 220 (1998).