Development of a New Low-Cost X-Y Table Using Optical Pickup Head

• Main Authors: Tien-Sen Lu, 盧天生
• Other Authors: Ping-Lang Yen
• Format: Others
• Language: zh-TW
• Published: 2006
• Online Access: http://ndltd.ncl.edu.tw/handle/5v7v83

碩士 === 國立臺北科技大學 === 自動化科技研究所 === 94 === An innovative X-Y table has been designed for the purpose of low cost and high positioning accuracy. In this paper, we developed an low-cost X-Y table consist of commercially available optical pickup-head unit and a self-made constructed platform. The feedback position signal of the platform was measured through the reflected signals on photo diodes from a compact disc attached on the platform. In order to achieve high accuracy of precise positioning, we adopted the classical PID controller as to move the platform to the desired position. Experimental results have shown the high potentiality of this architecture to achieve high accurate positioning of X-Y table with very low cost. Most of the developing X-Y tables applied Ball screw-driven table system or piezo-ceramic linear motor by taking the advantages of carrying heavy loads. However, their cost are very high in contrast to the proposed architecture. In some particular application fields. Carrying heavy loads is not the main requirement for the X-Y table, such as organic cell inspection, optical fiber alignment, nano-material research， ect. Taking this idea as a premise, if we could able to create a precise positioning X-Y table with very low cost, we will be able to achieve the extremely high commercial value and highly competitive ability.