| 楔顶双孔受感器试验数据处理方法研究 |
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| 引用本文： | 黎琨.楔顶双孔受感器试验数据处理方法研究[J].电子测试,2017(8). |
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| 作者姓名： | 黎琨 |
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| 作者单位： | 中国航发湖南动力机械研究所,湖南株洲,412002 |
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| 摘 要： | 楔顶双孔压力受感器可以用来获取三维动态流场数据.本文分别采用三次样条插值、最小二乘法拟合和线性插值等三种方法,对基于楔顶双孔高频压力受感器试验数据进行了分析研究,结果表明线性插值法较样条插值、最小二乘法具有更高的精度.
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| 关 键 词： | 楔顶双孔受感器 样条插值 最小二乘法 线性插值 |
Research on Date Processing Method of Testing for Two-hole Tip-wedge Pressure Probe |
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| Li Kun.Research on Date Processing Method of Testing for Two-hole Tip-wedge Pressure Probe[J].Electronic Test,2017(8). |
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| Authors: | Li Kun |
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| Abstract: | The 3D dynamic field data can be got by the two-hole tip-wedge high frequency pressure probe . The test data is analyzed by cubic spline interpolation, least squares method and linear interpolation three methods in this paper. The results show that the linear interpolation was the same precision with spline interpolation for the characteristics of a good probe and the linear interpolation could guarantee the accuracy of interpolation based on the characteristic curve of the probe does not change for the characteristics of a poor probe. Compared with spline interpolation and least squares method, the linear interpolation method has more extensive adaptability. |
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| Keywords: | two-hole tip-wedge probe spline interpolation least squares method linear interpolation |
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