CAJ | 학술논문

针对目前对管道内检测器标记难和测量精度差的现状,提出了一种新型单片集成阵列式矢量声传感器。克服了现有矢量声传感器在油气管道内检测器方位估计中判断信号方位的不足,消除了左右舷模糊的问题。通过用ANSYS软件对阵列式矢量声传感器结构进行仿真,得出该阵列式矢量声传感器的灵敏度为2.05 mV/Pa,一阶模态为438 Hz,固有频率为438 Hz。最后根据分析得出阵列式矢量声传感器在管道内检测器方位估计中的定位角度公式。
침대목전대관도내검측기표기난화측량정도차적현상,제출료일충신형단편집성진렬식시량성전감기。극복료현유시량성전감기재유기관도내검측기방위고계중판단신호방위적불족,소제료좌우현모호적문제。통과용ANSYS연건대진렬식시량성전감기결구진행방진,득출해진렬식시량성전감기적령민도위2.05 mV/Pa,일계모태위438 Hz,고유빈솔위438 Hz。최후근거분석득출진렬식시량성전감기재관도내검측기방위고계중적정위각도공식。
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.