Study on Cogging Torque Measuring Equipment Setting Up and Application of DC Brushless Precision Motor

• Main Authors: CHEN.WEN.TSUAN, 陳文川
• Other Authors: 王國彬
• Format: Others
• Language: zh-TW
• Published: 2005
• Online Access: http://ndltd.ncl.edu.tw/handle/56021521957757739828

碩士 === 長庚大學 === 化工與材料工程研究所 === 93 === Cogging torque is produced in the magnetic circuit structure of a small DC brushless precision motor due to the magnetic attraction of magnetic force to the Si-steel sheet tooth with high permeability. It is clear that cogging torque is desired to be minimized when evaluating a motor. In this direction, this study constructs an easily-operationed and fast-inspectioned measurement system. Through experimental tests on MSA (Gage R&R), it is shown that the designed measurement tools and equipment inspection system can meet the request of MSA. This equipment system is then used to inspect DC brushless precision motors in different application areas. Many experiments are done to demonstrate the fact that their cogging torques are distributed stably, and furthermore to analyze the connection between wave shape and scale of cogging torque on different motors. The designed inspection system is a very practical tool for designing and developing high precision motors, and is greatly helpful on prompt verification for motor design and development.