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| 1 | 海底热液温度场声学测量系统的初步研究显示文摘研制一套海底热液声学温度场测量系统.在测量平面周围布置多个水声换能器,分别测得每两个换能器之间的声波飞渡时间.根据海水中声速与海水温度之间的关系,使用最小二乘重建算法对测量平面内的温度场进行重建,论述了水声换能器声中心距离校正,广义互相关时延估计以及总体最小二乘重建算法等关键技术在系统中的应用.进行了水声换能器声中心距离校正和声学测温实验,给出结果并进行了误差分析.声学测温实验结果最大绝对误差3.2k,最大相对误差1.02%,均方根误差0.44%,温度场形态和实际温度分布基本吻合,验证了测量系统及其关键技术的可行性. | 张祝军 潘宏 蔡勇 樊炜 | 2010 | 电子测量与仪器学报2010，24，11： | 10 |
| 2 | Study on the High Precision Acoustic Measurement Techniques for Determining Temperature Field Around Seafloor Hydrothermal Vent显示文摘This paper presents the basis of acoustic method used for temperature field measurement of seafloor hydrothermal vent and two techniques of the parabolic interpolation and the bending compensation of propagation paths of acoustic signal are introduced. Experimental research is performed to exactly rebuild the temperature field around hot springs on the floor of Qiezishan Lake, Yunnan, China. The accuracy of the travel time estimation has been improved based on the aforementioned technique and method. At the same time, by comparison of the results of temperature field with different means, the max absolute error, the maximum relative error and the root mean square error are given. It shows that the technique and the method presented in the paper can be applied to the temperature field measurement detector around the seafloor hydrothermal vent. It also has a good accuracy. | 蔡勇 樊炜 周艳 付现桥 方辉 金涛 | 2012 | China Ocean Engineering2012，26，4： | 0 |
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