|
|
|
| Study on a Self Compensating Differential Torque Sensor |
| ZHAO Hao |
| Jiaxing University, Jiaxing, Zhejiang 314001, China |
|
|
|
|
Abstract A new structure differential torque sensor with compensating winding is designed. The method is to convert torsion angle produced by load torque into the angle displacement of sensor excitation winding and output winding, the excitation winding sets up pulsating flux, and the output winding are connected differentially, the output winding produces induction potential which is proportional to the angular displacement through electromagnetic coupling. The output characteristic of sensor is deduced by the magnetic circuit theorem and ampere circuital theorem, and the reasons that sensor output characteristic distortion produced by load resistance are analyzed, and the corresponding method is presented. The sensor is calibrated by torsion testing machine, the experimental results indicated the sensitivity of the sensor is 4.07 mV/(N·m), the repeatability error is about 3.17%, the non-linear error is about 2.34%, and the hysteresis error is about 0.55%.
|
|
Received: 17 September 2014
Published: 31 May 2016
|
|
|
|
|
|
［1］季学武,马小平,周寒露,等.电动助力转向系统光电式转矩传感器的研究［J］.仪表技术与传感器,2004, (10):4-6.
［2］郭闯强, 倪风雷. 具有力矩传感器的柔性关节的振动抑制［J］. 机器人, 2011,33(4):449-454.
［3］胡明江, 王忠, 祁利巧,等. 转矩传感器在柴油机低温阻力矩中的应用［J］. 仪表技术与传感器,2009, (1): 9-11.
［4］王伟宁, 李林平. 皮带运输机故障检测系统的研究和应用［J］. 中国矿业, 2008,17(9):61-63.
［5］黄震, 刘彬, 董全林. 基于激光多普勒技术的扭矩测量研究［J］. 计量学报, 2007, 28(1): 61-63.
［6］龙华伟, 翟超, 胡冬青,等. 基于Lab VIEW的步进电动机扭矩测试系统［J］. 计量学报, 2008, 29(1): 60-64.
［7］孟峰, 张智敏, 张跃,等. 30kN·m多功能扭矩标准机［J］. 计量学报, 2013, 34(4): 311-314.
［8］Aphrodite K, Christos M, Petros T. Design and Characterization of a Magnetostrictive Torque Sensor ［J］. Sensor Letters, 2013, 11(1): 184-186.
［9］张超,辛美娟,薛建彬,等. 基于FPGA的高精度扭矩传感系统设计［J］. 仪表技术与传感器,2013(7): 87-88.
［10］潘新安,王洪光,姜勇. 一种机器人谐波减速器内嵌扭矩传感器的研制［J］. 仪器仪表学报, 2014,35(1): 650-655.
［11］张智敏, 李涛, 张跃,等. 全自动高准确度100 N·m扭矩标准机［J］. 计量学报,2010,31(1):1-4.
［12］Javahiraly N, Chakari A. Study,Design and Development of an Optical Torque Sensor for a New Generation of Steering System［J］. Lasers in Engineering, 2013, 25 (5): 273-291.
［13］张有硕. 转矩测量技术［M］. 北京: 计量出版社, 1986. |
|
|
|
2016, Vol. 37 
