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A point sound source location and detection method based on 19-element hemispheric distributed acoustic pressure sensor array

机译：基于19元半球分布声压传感器阵列的点声源位置与检测方法

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摘要

To solve the key problem of diagnosing the operating condition of an oil transfer pump unit in a 3D closed space, this paper presents an approach for a point sound source location and detection method based on a hemispheric distributed sound pressure sensor array. The array model consists of 19 sound pressure sensors acting in the radial direction and uniformly distributed over the hemispherical surface. A spatial rectangular coordinate system is established by taking the projection point of the central sensor arranged at the apex of the hemisphere to the ground as the origin of the spatial coordinates. With reference to the central sensor, the point sound source is located by selecting the maximum measured sound level and its spatial coordinate in each of the three layers of sensors surrounding it as parameters and using a triangular or a quadrilateral area location algorithm based on virtual instrument technology. According to the location of the source, the A-weighted sound level of the sound source point is derived by the inversion of the sound field distribution law. Results show that the triangular and quadrilateral area location algorithms are both effective. The errors in location become larger for a measured sound source far from the centre.
机译：为了解决诊断3D闭合空间中的输油泵单元的操作条件的关键问题，本文提出了一种基于半球分布声压传感器阵列的点声源位置和检测方法的方法。阵列模型由19个声压传感器组成，作用在径向方向上并均匀地分布在半球形表面上。通过将中心传感器的投影点置于半球顶点的中央传感器的投影点作为空间坐标的起源来建立空间矩形坐标系。参考中心传感器，通过选择基于虚拟仪器的三角形或四边形区域定位算法，选择点声源，通过选择最大测量声级及其三层传感器中的每个传感器中的每个空间坐标定位。技术。根据源的位置，声源点的A加权声级通过声场分配法的反转来源。结果表明，三角形和四边形区域定位算法既有效。对于远离中心的测量声源，位置的错误变大。

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  • 来源
    《Insight》 |2021年第8期|479-487|共9页
  • 作者

    Zhaoting Liu; Longqing Zou; Xianglou Liu; Jiale Qiao; Xiangbin Meng;

  • 作者单位

    School of Mechanical Engineering Northeast Petroleum University Daqing 163318 Heilongjiang China;

    School of Mechanical Engineering Northeast Petroleum University Daqing 163318 Heilongjiang China;

    School of Mechanical Engineering Northeast Petroleum University Daqing 163318 Heilongjiang China;

    College of Electrical Engineering Sui Hua University Suihua 152061 Heilongjiang China;

    School of Mechanical Engineering Northeast Petroleum University Daqing 163318 Heilongjiang China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    sound pressure sensor; hemispheric distributed array; sound source location; virtual instrument technology;

    机译：声压传感器;半球分布式阵列;声源位置;虚拟仪器技术;

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