| 一种经济型测量传声器的改装、校准及应用 |
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| 引用本文： | 王利,王同庆.一种经济型测量传声器的改装、校准及应用[J].航空动力学报,2010,25(9):2041-2049. |
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| 作者姓名： | 王利 王同庆 |
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| 作者单位： | 北京航空航天大学 能源与动力工程学院,北京 100191 |
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| 摘 要： | 基于一种消费电子类的麦克风设计改装了一种经济型测量传声器,并设计了校准实验装置对其进行校准.对校准实验装置的可靠性进行了验证,利用该装置对自制传声器的幅值、相位进行了校准,将校准后的传声器安装在实验室的流管实验装置上进行测量,并和B&K(Bruel&Kjaer)公司的4938型传声器同样条件下的测量结果进行比较,对比结果显示自制传声器经过校准以后可以作为测量传声器应用.
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| 关 键 词： | 测量传声器 噪声测量 幅值校准 相位校准 流管实验装置 |
| 收稿时间： | 2009/8/22 0:00:00 |
| 修稿时间： | 2009/11/17 0:00:00 |
Encapsulation,calibration and application of an economical measurement microphone |
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| WANG Li and WANG Tong-qing.Encapsulation,calibration and application of an economical measurement microphone[J].Journal of Aerospace Power,2010,25(9):2041-2049. |
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| Authors: | WANG Li and WANG Tong-qing |
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| Institution: | School of Jet Propulsion,Beijing University of Aeronautics and Astronautics,Beijing 100191,China |
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| Abstract: | An economical measurement microphone was encapsulated using a consumptive microphone in this paper,and a calibration rig was designed and validated firstly,and then the amplitude and phase of the microphone was calibrated on this rig.The calibrated microphone was used as measurement microphone on the flow impedance test rig(FITR) in our laboratory,and the measured data were compared with data measured by Bruel & Kjaer(B & K) 4938 microphone.The comparison result shows that the microphone can be used as a measurement microphone when it is calibrated. |
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| Keywords: | measurement microphone noise measurement amplitude calibration phase calibration flow impedance test rig |
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