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A method for testing phased array acoustic Doppler velocity log on land

机译：一种陆上相控阵声多普勒速度测井测试方法

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摘要

As Phased Array acoustic Doppler Velocity Log (PADVL) is widely used on oceanographic vessels " and other platforms, it is necessary to provide a systematic examination on land. A Phased Coupling Array Method (PCAM) is proposed in this paper. When one Phased Array (defined as PA I) is placed face to face with array of PADVL (defined as PA II), simulating echo signals can be coupled from PA I into PA II. By the comparison between the predetermined parameters of the simulating echo signals and the measuring results from PADVL, the status of PADVL can be confirmed and a more reliable, comprehensive and convenient examination on land can be realized. Model of the signal interaction between the two arrays is established. And two main sources of error, i.e. misalignment angles and eccentric error are examined. The results show that: misalignment angles have small influence on the coupling performance; ideal coupling performance can be received when misalignment angle vertical bar beta vertical bar <= 3 inverted perpendicular, vertical bar gamma vertical bar <= 30 degrees, vertical bar alpha vertical bar <= 60 degrees, and eccentric error Delta x, Delta y <= 2 lambda It The measured results from the prototype are consistent with the simulation, which further verifies the proposed method. (C) 2015 Elsevier Ltd. All rights reserved.
机译：由于相控阵声多普勒速度测井仪（PADVL）在海洋船舶等平台上得到了广泛的应用，有必要对陆地进行系统的研究。本文提出了一种相控阵方法（PCAM）。 （定义为PA I）与PADVL（定义为PA II）阵列面对面放置，可以将模拟回声信号从PA I耦合到PA II。通过比较模拟回声信号的预定参数和测量根据PADVL的结果，可以确定PADVL的状态，可以实现更可靠，更全面，更方便的陆地检查，建立了两个阵列之间信号相互作用的模型，并且产生了两个主要误差源，即偏心角和偏心率结果表明：偏心角对耦合性能的影响很小；偏心角垂直条β垂直时，可以获得理想的耦合性能al bar <= 3垂直倒置，垂直bar gamma垂直酒吧<= 30度，垂直bar alpha垂直酒吧<= 60度，偏心误差Delta x，Delta y <= 2 lambda它从原型测得的结果与仿真，进一步验证了所提出的方法。 （C）2015 Elsevier Ltd.保留所有权利。

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  • 来源
    《Applied Acoustics》 |2016年第febaptaa期|102-109|共8页
  • 作者

    Cao Zhongyi; Zhang Dianlun; Sun Dajun; Yong Jun;

  • 作者单位

    Harbin Engn Univ, Sci & Technol Underwater Acoust Lab, Harbin 150001, Heilongjiang, Peoples R China;

    Harbin Engn Univ, Sci & Technol Underwater Acoust Lab, Harbin 150001, Heilongjiang, Peoples R China;

    Harbin Engn Univ, Sci & Technol Underwater Acoust Lab, Harbin 150001, Heilongjiang, Peoples R China;

    Harbin Engn Univ, Sci & Technol Underwater Acoust Lab, Harbin 150001, Heilongjiang, Peoples R China;

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

    Phased Array acoustic Doppler Velocity Log; Phased Coupling Array Method; Misalignment angles; Eccentric error;

    机译：相控阵声多普勒速度测井法;相控阵法;偏心角;偏心误差;

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