[1] Jeon K. J., Kim S. J., Park K. K., Journal of Biomedical Optics, 2002, 7(1): 45.

[2] Aldrich T. K., Moosikasuwan M., Shah S. D., et al, Annals of Biomedical Engineering, 2002, 30(10): 1291.

[3] Kraitl J, Ewald H, Gehring H. Journal of Optics A-Pure and Applied Optics, 2005, 7(6): S318.

[4] LI Qiuxia, Wang Huiquan, Li Gang, et al, Transactions of the Institute of Measurement & Control 35(1) 16.

[6] Li Gang, Liu Yuliang, Lin Ling, et al. 3rd International Symposium on Instrumentation Science and Technology, Xi’an, 2004, 3: 875.

[8] LI Gang, Zhou Mei, Lin Ling. Opt Quant Electron, doi: 10.1007/s11082-013-9775-0.

[10] James H Harlow. Electric Power Transformer Engineering. CRC Press, 2004: 2-216. ISBN 978-0-8493-1704-0.

[11] Michael H Tooley. Electronic Circuits: Fundamentals and Applications. Newnes. 2006: 77-78. ISBN 978-0-7506-6923-8.