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浙江大学学报(工学版)
J4  2012, Vol. 46 Issue (6): 1060-1066    DOI: 10.3785/j.issn.1008-973X.2012.06.016
机械工程     
双悬臂梁直径测量传感器性能分析
乔龙学1, 王伟刚1, 何姗2, 鲁阳2
1. 浙江大学 机械工程学系,浙江 杭州310027；2. 浙江大学 航空航天学院,浙江 杭州310027
Performance analysis on twin-cantilever transducer
for measuring diameter
QIAO Long-xue1, WANG Wei-gang1, HE Shan2, LU Yang2
1. Department of Mechanical Engineering,Zhejiang University, Hangzhou 310027, China；
2. School of Aeronautics and Astronautics, Zhejiang University, Hangzhou 310027, China
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摘要：

为解决目前材料力学性能试验中试样横截面尺寸测量技术存在的问题,开发了双悬臂梁直径测量传感器及测量系统.用梁弯曲理论和应变电测理论说明这种传感器及测量系统的测量原理,分析测量灵敏度和分辨率.设计、制作传感器,与直径标准器和电阻应变测量仪配合,组成测量系统.利用测量系统进行直径测量实验,并通过对实验数据和测量系统各单元作用特性的分析,确定测量系统的主要误差来源.实验结果表明：测量系统的分辨率达到0.2 μm,绝对误差限为4 μm.
Abstract:

A twin-cantilever transducer and diameter measurement system was developed to solve the problems in the dimension measurement of cross section of samples in material testing. Beam bending and strain gauge theories were used to explain the measuring principles of this apparatus, and the sensitivity and resolution of this measurement system were analyzed in particular. An experimental system, including a twin-cantilever transducer, a set of master diameter gauge, and a resistance strain meter, was designed. Then, calibration and diameter measurement experiments were carried out. By analyzing the experimental dada and the characteristics of each principal unit of the experimental system, the available measurement resolution and the absolute uncertainty were discussed. The experimental results showed that the resolution reached 0.2 μm, and the uncertainty was limited in 4 μm.
出版日期: 2012-07-24
:  TH 821  
基金资助:

国家自然科学基金资助项目（10572127）；浙江省自然科学基金资助项目（Z1110190）.
通讯作者: 鲁阳,男,研究员,硕导.     E-mail: zd_luyang@126.com
作者简介: 乔龙学（1990—）,男,本科生,从事精密测量仪器的研究.E-mail: dragonflying1990@zju.edu.cn
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引用本文:

乔龙学, 王伟刚, 何姗, 鲁阳. 双悬臂梁直径测量传感器性能分析[J]. J4, 2012, 46(6): 1060-1066.

QIAO Long-xue, WANG Wei-gang, HE Shan, LU Yang. Performance analysis on twin-cantilever transducer
for measuring diameter. J4, 2012, 46(6): 1060-1066.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2012.06.016    或    http://www.zjujournals.com/eng/CN/Y2012/V46/I6/1060

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