摘要
为了测量海底冷泉渗漏流量的主要参数气泡流速,提出了用声波分路器将同源声波分成两路的方法,根据声波导管理论和声波传播原理设计了分路器的结构.换能器的校验实验表明两路接收换能器的性能基本相同,能满足分路器的验证实验.在空气与水中对声波分路器的特性进行了实验对比:空气中的实验表明,同源声波穿过分路器两支路后声程、幅值和频谱特性基本一致,验证了设计的合理性;水中的实验表明,同源声波穿过分路器能量的损失约为20%,为减少在水中声波的损失,分路器需要加上声波反射元件.
In order to measure the bubble velocity,the main parameter of seafloor seepage,this paper proposes a method that the homologous acoustic is divided into two parts by acoustic wave divider. The structure is designed based on acoustic waveguide theory and acoustic wave propagation principle. Verification experiments of the transducer indicate that the performance of two receiving transducers is basically identical,which can meet the calibration experiments of wave divider. Experimental comparison of the wave divider characteristics in air and water has been made. The experiments in air show that the path,amplitude and spectrum characteristics are almost consistent after the homologous acoustic wave goes through two branches of the divider,which proves the design is reasonable; while the experiments in water show that the energy of homologous acoustic wave loses about 20% through two branches of the divider,indicating that in order to reduce the loss of wave in water,the acoustic reflection components are needed.
出处
《广东工业大学学报》
CAS
2015年第1期50-54,60,共6页
Journal of Guangdong University of Technology
基金
国家自然科学基金资助项目(41176034)
三亚深海科学与工程研究所知识创新工程领域前沿项目(SIDSSE-201208)
关键词
海底冷泉渗漏
声波分路器
声波导管理论
气泡流速
seafloor cold seepage
acoustic wave divider
acoustic waveguide theory
bubble velocity
