【作者】 杨哲； 鞠晓东； 乔文孝；

【Author】 YANG Zhe JU Xiao-dong QIAO Wen Xiao (China University of Petroleum-Beijing, 102249)

【机构】 中国石油大学；

【摘要】 本文介绍应用于石油声波测井领域的相控圆弧阵的激励电路设计和原理。以DSP和CPLD为核心器件控制多路声波阵列激发电路,通过特有的充放电电路的配合可以调节圆弧阵中每个阵元激励脉冲信号的幅度,使该电路能够对相控圆弧阵进行幅度加权和相位加权方式激励。通过对方位电子开关的控制使该圆弧阵能够在水平面上实现360°范围的声波定向扫描辐射。实验表明,该电路性能能够满足设计需求。更多还原

【Abstract】 This paper introduced the concept and the citcuit design of the arc phased array acoustic transmitter. In this circuit DSP and CPLD were used as control component. By the uses of special charge and discharge, the pulse amplitude of every unit in the array can be adjusted arbitrary. The circuit can control arc phased array by the method phase weighted and amplitude weighted. By directional control switch we can emit scanning acoustic beam in 360 degree in horizontal direction. The experiments suggested that the circuit satisfied tequirements of this project更多还原