传感技术学报Issue(2)：184-189,6.DOI:10.3969/j.issn.1004-1699.2014.02.007
一种用于管道地面标记的阵列式MEMS矢量声传感器仿真研究
Simulation Research of an Aligned Array MEMS Vector Acoustic Sensor in Above-Ground Marker of Pipeline
摘要
Abstract
In view of the present situation,the pipe marking difficulty and poor measurement precision,a new-type monolithic integrated aligned array MEMS vector acoustic sensor has been put forward. The sensor overcomes the deficiency for using the existing sound vector sensor to judge the signal position in the oil and gas pipeline detector, and eliminates the port/starboard blur problem. By using ANSYS software for simulation aligned array vector acoustic sensor structure,the results show that the sensitivity of the aligned array vector acoustic sensor is 2. 05 mV/Pa,the first-order modal is 438 Hz. The natural frequency is 438 Hz. Finally,the Orientation Angle formula of the aligned array vector acoustic sensor azimuth estimation in the pipeline internal detector is given.关键词
内检测器/阵列式矢量声传感器/ANSYS仿真/方位估计Key words
internal detector/aligned array vector acoustic sensor/ANSYS simulation/DOA estimation分类
能源科技引用本文复制引用
刘梦然,张国军,简泽明,刘宏,宋小鹏,张文栋..一种用于管道地面标记的阵列式MEMS矢量声传感器仿真研究[J].传感技术学报,2014,(2):184-189,6.基金项目
国家863计划项目(2011AA040404) （2011AA040404）
国家自然科学基金项目(61127008,51205374) （61127008,51205374）
山西省青年科技研究基金项目(2012021013-3) （2012021013-3）
