海洋潜标数据采集系统的设计实现与试验测试  

Design and Experiment of Data Acquisition System of Submerged Buoy

作　　者：王振[1] 刘振江[1] 崔浩[1] 许岩[1] 厉运周[1] 

机构地区：[1]山东省海洋环境监测技术重点实验室,山东省科学院海洋仪器仪表研究所,山东青岛266001

出　　处：《海洋技术》2013年第4期6-10,共5页Ocean Technology

基　　金：山东省科学院青年基金资助项目(2013QN032)

摘　　要：为实现海洋潜标系统中矢量水听器能够检测微弱水声信号的功能，建立了具有低噪声、低功耗和高增益等性能特点的数据采集系统，介绍了其中信号调理电路、采集存储电路和上位机软件的设计与实现，并对该数据采集系统进行了通频带、增益、通道一致性和功耗等指标测试以及水池试验测试。测试结果表明：该系统在10～1000Hz通频带内具有平坦的幅频特性，在通频带外有较快的衰减；系统增益为60dB；4个通道具有较好的幅值、相位一致性；系统总功耗为1．2w，可持续运行10d以上；水池中输出信号具有明显的指向性。In order to detect slight underwater sound signals by vector hydrophone of submerged buoy, the data acquisition system was established featured by low noise, low power consumption and high gain. The signal processing circuit, storage circuit and the PC software were designed and implemented. The index tests and anechoic tank tests were conducted on transmission bands, gain, channel consistency and power consumption of the system. The results indicate that the system has fiat amplitude-frequency characteristics in the transmission band of 10~1 000 Hz, compared with fast attenuation outside the transmission band; the system gain is 60 dB; the four channels have good performance of amplitude and phase equalization; the power consumption is 1.2 W, and the system can be sustainable for more than 10 days; and the output signal in the anechoic tank has obvious directivity.

关 键 词：潜标 矢量水听器 数据采集系统 增益 指向性 

分 类 号：P756.6[天文地球—海洋科学]