[1]胡明敏,游思明.一种新型的大应变高精度引伸计[J].东南大学学报(自然科学版),1999,29(4):88-91.[doi:10.3969/j.issn.1001-0505.1999.04.019]
 Hu Mingmin,You Siming.A New Structure of Large Strain and High Precision Extensometer[J].Journal of Southeast University (Natural Science Edition),1999,29(4):88-91.[doi:10.3969/j.issn.1001-0505.1999.04.019]
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一种新型的大应变高精度引伸计()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
29
期数:
1999年第4期
页码:
88-91
栏目:
机械工程
出版日期:
1999-07-20

文章信息/Info

Title:
A New Structure of Large Strain and High Precision Extensometer
作者:
胡明敏 游思明
南京航空航天大学测试工程系, 南京 210016
Author(s):
Hu Mingmin You Siming 
Department of Measurement Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016
关键词:
引伸计 弹性元件 线性度
Keywords:
entensomenter elastic element linearity
分类号:
TH87
DOI:
10.3969/j.issn.1001-0505.1999.04.019
摘要:
大量程引伸计的弹性元件处于大挠度工作状态,引伸计非线性问题较为突出.本文设计出双折臂结构的弹性元件,理论上可使非线性误差获得完全自补偿,在较大量程内测端挠度与弹性元件上应变呈线性关系,较圆满地解决了大量程引伸计设计中的非线性问题,显示出该结构形式独特的优点,实验结果令人满意.
Abstract:
The elastic element of extensometer in large strain measurement works involves in state of large deflection.Its nonlinear error due to this deflection is relatively high for high precision measurement application.New type structure of elastic element that has two-direction foldings is designed, based on researching on formerly used elastic element structure.The strain on elastic element versus measurement point displacement is linear in large scope measurement,because its non linear error caused by two different folding directions can be theoretically self-compensated.It shows unique originality and advantages comparaed to formerly used elastic element structure. Experiment result shows very satisfactory precision. 

参考文献/References:

[1] 梁新邦.弓形电子引伸计的固有非线性分析.理化检验物理分册.北京:中国计量出版社,1991.27~31
[2] 施纪泽,金保森,付增祥,等.高精度应变式轴向引伸计的研究.见:第七届全国实验力学学术会议论文集:第2集.北京:北京大学出版社,1992.1313~1316
[3] 邬显义,施纪泽.试验机的负荷-位移测量系统.北京:机械工业出版社,1985.54~96
[4] 施纪泽,金保森,付增祥.应变式引伸计弹性元件的线性化研究.西北工业大学学报,1994,12(1):112~117

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 Zhao Zhi-mei,Xie Xi-jun.Study of Dynamometer for Surface Grinding[J].Journal of Southeast University (Natural Science Edition),1981,11(4):69.[doi:10.3969/j.issn.1001-0505.1981.02.008]

备注/Memo

备注/Memo:
第一作者:男, 1957年生,硕士, 副教授.
更新日期/Last Update: 1999-07-20