CAJ | 학술논문

基于磁弹性原理组建扭矩测量系统；归纳出“扭矩与磁感应强度之间存在线性正比例关系”的规律；提出以扭矩与磁感应强度之间的线性正比例关系为基础，利用具有巨磁阻效应的特斯拉计先测量磁感应强度值，再计算出相应扭矩值的扭矩测量新方法，为研发汽车扭矩传感器提供一种新的思路；利用SPSS软件进行数据分析，扭矩测量系统的线性度误差小于0．1％，重复性误差均小于0．1％，符合测量系统的误差要求，验证这种扭矩测量新方法的可行性；总结出扭矩测量系统的主要技术指标有：量程为0-100N·m、线性度和重复性两个误差指标均为0．1％。
기우자탄성원리조건뉴구측량계통；귀납출“뉴구여자감응강도지간존재선성정비례관계”적규률；제출이뉴구여자감응강도지간적선성정비례관계위기출，이용구유거자조효응적특사랍계선측량자감응강도치，재계산출상응뉴구치적뉴구측량신방법，위연발기차뉴구전감기제공일충신적사로；이용SPSS연건진행수거분석，뉴구측량계통적선성도오차소우0．1％，중복성오차균소우0．1％，부합측량계통적오차요구，험증저충뉴구측량신방법적가행성；총결출뉴구측량계통적주요기술지표유：량정위0-100N·m、선성도화중복성량개오차지표균위0．1％。
In this paper, the process of constructing a torque measurement system on the basis of magneto-elasticity principle was elaborated. The authors concluded that there is linear positive relationship between torque and magnetic flux density. A new method for torque measurement based on the proportional linear relationship between torque and magnetic flux density was proposed, in which the teslameter with GMR effect was applied to measure the magnetic flux density, and then the torque was calculated. The SPSS soft- ware was used for data analysis. The results indicated that both the repeatability of experiment data and the linearity of torque measurement were less than 0. 1%, which are in accordance to the system requirements on measurement error. Therefore, the new method is verified to be feasible. The final key technical indexes of the torque measurement system are summarized as follows ： the measurement range is 0 - 100 N · m, and both the error index of linearity and repeatability are 0. 1%.