| 一种新型的大应变高精度引伸计 |
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| 引用本文： | 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):2. |
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| 作者姓名： | 胡明敏 游思明 |
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| 作者单位： | 南京航空航天大学测试工程系 |
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| 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
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| 关 键 词： | 引伸计 弹性元件 线性度 |
一种新型的大应变高精度引伸计 |
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| Hu Mingmin,You Siming.一种新型的大应变高精度引伸计[J].Journal of Southeast University(Natural Science Edition),1999,29(4):2. |
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| Authors: | Hu Mingmin You Siming |
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| Institution: | Hu Mingmin;(Department of Measurement
Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016) |
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| 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. |
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| Keywords: | entensomenter elastic element linearity |
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