CAJ | 학술논문

海底底质声学参数测量系统用于测量海底沉积物的声速和声衰减参数,它由水上主控子系统和水下测量子系统构成.水上主控子系统由工控机、数据传输接口和GPS定位模块组成,实现实时控制、数据处理与记录功能;水下测量子系统由声系、数据采集和传输模块组成,完成水下声波信号数字化及数据上传.水上设备与水下装置间通过电缆建立低速的下行命令信道和高速的上行数据信道,数据通讯采用曼彻斯特编码调制方式.水上计算机通过下传命令实时改变数据采集模块的控制参数,能够在各种环境条件下获得最佳测量效果.实验证明,仪器测量达到预期效果.
해저저질성학삼수측량계통용우측량해저침적물적성속화성쇠감삼수,타유수상주공자계통화수하측양자계통구성.수상주공자계통유공공궤、수거전수접구화GPS정위모괴조성,실현실시공제、수거처리여기록공능;수하측양자계통유성계、수거채집화전수모괴조성,완성수하성파신호수자화급수거상전.수상설비여수하장치간통과전람건립저속적하행명령신도화고속적상행수거신도,수거통신채용만철사특편마조제방식.수상계산궤통과하전명령실시개변수거채집모괴적공제삼수,능구재각충배경조건하획득최가측량효과.실험증명,의기측량체도예기효과.
A design on an equipment for measuring acoustic attenuation and compressional velocity in sea-floor sediments is described. It is composed of on-water equipment and under-water measuring module. The on-water equipment, including a computer, a global positioning module and a data communication module, is used for the real-time remote control of under-water data acquisition, data receiving, processing, and recoding. The under-water measuring module includs sonic sondes, data acquisition module, and data communication module, fulfills data acquisition and transmission. With a communication cable between them, a duplex channel with Manchester code modulation is formed. Under-water module can transmit data up with high speed, and the On-water computer can transmit commands down to adjust control parameters for data acquisition to get the best results in various conditions. It is certified that the design is feasible by experiment.