| 鉴相型容栅传感器由偶次谐波所引起的原理性测量误差的分析 |
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| 引用本文： | 张增耀,骆家贤. 鉴相型容栅传感器由偶次谐波所引起的原理性测量误差的分析[J]. 中国计量学院学报, 1993, 0(1) |
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| 作者姓名： | 张增耀 骆家贤 |
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| 作者单位： | 中国计量学院机械量计量系，浙江无线电厂 |
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| 摘 要： | 本文以付里叶分析方法,对鉴相型容栅传感器的输出函数v(t,x)进行了典型分析,发现了由偶次谐波所引起的原理性非线性测量误差,并指出其原因在于C_i(x)的构造,即容栅尺电容极板的几何构造.因此在进行容栅尺电容极板的几何构造设计时,必须使其C_i(x)的偶次展开项的系数最小,从而使原理性测量误差为最小,这就是设计时必须依据的准则之一。
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| 关 键 词： | 客栅 误差分析 |
Principle Error Analysis of Phase Modulated Capacitive Transducer Arising from Even Harmonics |
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| Zhang Zengyao,Dept. of Mechanical and Dimensional Measurement. Principle Error Analysis of Phase Modulated Capacitive Transducer Arising from Even Harmonics[J]. Journal of China Jiliang University, 1993, 0(1) |
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| Authors: | Zhang Zengyao Dept. of Mechanical Dimensional Measurement |
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| Abstract: | A typical analysis for the output function V(t, x) of phase modulated capacitive transducers is per- formed by the Fourier Method. It is found that there is a non-linear principle error arising from even harmonics, which is determined by the structure of the function C_1(x), i.e. the geometrical structure of the elec- trodes of the capacitive transducer. Therefore, one of the criterions, which have to be actted on in the struc- ture design of the electrodes of capacitive transducer for displacement measurement, is that the coefficients of even expansions of C_1(x) be minimum in oder to reduce the principle error. |
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| Keywords: | displacement measurement capacitive transducer error analysis |
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