Digital Control and Computer Communicationof Tension Meters

• Main Authors: Ming-Jain Lu, 呂銘展
• Other Authors: Shuang-Yuan Chen
• Format: Others
• Language: zh-TW
• Published: 2010
• Online Access: http://ndltd.ncl.edu.tw/handle/a24hqm

碩士 === 國立臺北科技大學 === 機電整合研究所 === 98 === Most of tension meters for coil winding machines are implemented by analog circuit. However, as the diameter or material of the wire or coil type change, the tension of the wire should be changed too. The adjustment for each tension meter is quite troublesome and hard to maintain consistent. Thus, the quality of winded coils are difficult to be uniform. Hence, in this study, the tension meter is implemented by digital circuit which provides several functions such as the initial setup for accurate reading of tension, the tensile value display, monitoring and adjusting from pushbuttoms or from a remoted personal computer (PC). These functions can let up to 16 tension meters be adjusted, monitored and controlled simultaneously through computer network. The digital tension meter consists of RS-232 or RS-485 to communicate with a PC (simulating main controller of coil winding machine). Also, a stepper motor and a small size liquid crystal display (LCD) are integrated into the designed digital circuit with the micro-processor W78E516B to control the tension meter. Finally, we have designed two systems for the digital tension meter. One is for off-line system (operating individually), and the other one is for on-line system (controlled and communicated through PC). Both of these two systems contain the functions of initial setup, tensile value display, saving and control. For the on-line system, the digital tension meter can receive the operation code from the PC. Above all, the tension meter with above functions have been proved its versatility with coil winding machine. And the commercialization of the digital tension meter is left for the future work.