Development of Long Span, High Precision Absolute Linear Scale by Moire Fringes

Yasuhiko Arai, Shunsuke Yokozeki^* and Tomoharu Yamada

Kansai University, Department of Mechanical Engineering, Faculty of Engineering, 3-3-35, Yamate-cho, Suita, Oosaka 564, Japan

^*Kyushu Institute of Technology, Department of Mechanical System Engineering, Faculty of Computer Science and System Engineering, 680-4, Kawazu, Iizuka, Fukuoka 820, Japan