Sasaki , K., T. Sato, and H. Yaguchi. “EFFECT OF ELECTRICAL CABLE ON MOVEMENT-RANGE OF AGNETIC ACTUATOR SYSTEM CAPABLE OF INSPECTION IN A PIPE”. Journal of Mechanical Engineering and Sciences, vol. 7, no. 1, Dec. 2014, pp. 1024-32, doi:10.15282/jmes.7.2014.1.0099.