| 方形膜片压力敏感元件的频率特性 |
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| 引用本文： | 樊尚春,刘广玉.方形膜片压力敏感元件的频率特性[J].北京航空航天大学学报,1995,21(1):84-89. |
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| 作者姓名： | 樊尚春 刘广玉 |
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| 作者单位： | 北京航空航天大学自动控制系 |
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| 摘 要： | 方形膜片是一种先进的敏感压力的谐振子。其于板的大找度变形理论，建立了被测压力与谐振子固有频率的数学模型，计算机、分析了谐振子的几何参数对振动特性的影响规律，得到了在给定压力得程内，对确定材料的膜片其固有频率相对零压力频率的变化率只与其边长、膜片厚的比值有关的重要结论，为设计该类谐振子提供了理论依据。
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| 关 键 词： | 膜片 谐振子 压力传感器 固有频率 敏感元件 |
THE FREQUENCY CHARACTERISTICS OF SQUARE DIAPHRAGM PRESSURE SENSORS |
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| Fan Shangchun, Liu Guangyu.THE FREQUENCY CHARACTERISTICS OF SQUARE DIAPHRAGM PRESSURE SENSORS[J].Journal of Beijing University of Aeronautics and Astronautics,1995,21(1):84-89. |
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| Authors: | Fan Shangchun Liu Guangyu |
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| Abstract: | The square diaphragm is a novel pressure sensor. This paper establishes the math model between the pressure and the natural frequency for the above sensor. based on the large deflection theory of the plate. The influence of the structure parameters on the frequency characteristics was calculated and analysed. An important result that the relative frequency variation is only dependent on the ratio of the length of side to thickness of the diaphragm. was provided under the given pressure range and the definite material of the diaphragm, which presents theoritical bases for developing and designing the above novel sensor. |
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| Keywords: | diaphragms harmonic oscillators pressure natural frequency |
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