Experimental Investigation on the Effect of Arm Length on Accuracy of Torque Wrench

摘要：

　　Experiments were carried out to investigate the effect of arm length on the accuracy of two typical conventional torque wrenches,namely,setting type torque wrench (STW) and indicating type torque wrench (ITW).The experiment results demonstrate that the measurement values of STW rises rapidly with decreasing arm length while measured torque of ITW shows irrelevant to arm length.Theoretical solution with respect to STW shows quite good agreement with experiment results.Irrelevance of arm length regard to ITW may be attributable to compensation of bending moment measurement due to proper arrangement of circuit and structural design.In order to conduct a proper assessment at a calibration laboratory or ensure its reliability with reference to actual use conditions,a torque wrench should be used by a customer at the loading point as recommended.

关键词： Arm length Setting type torque wrench indicating type torque wrench

作者: Yougang Peng Yong Wang

作者单位: Research center of laser fusion,China Academy of Engineering Physics,No.64,Mianshan Road,Mianyang 62 Metrology Testing Center,China Academy of Engineering Physics,No.64,Mianshan Road,Mianyang 621900,Ch

会议类型: 国际会议

会议名称: 2016 International Symposium on Structural Integrity，ISSI—2016(2016国际结构完整性研讨会)

会议地点: 天津

会议语种:英文

页码: 216-220

在线出版日期: 2016-05-26（万方平台首次上网日期，不代表论文的发表时间）