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| 矢量水听器自动校准系统的研究及实现 | |
| 引用本文： | 刘晋昌,费腾,刘明波,廖述常.矢量水听器自动校准系统的研究及实现[J].计量学报,2011,32(6):526-530. |
| 作者姓名： | 刘晋昌 费腾 刘明波 廖述常 |
| 作者单位： | 1. 水声对抗技术重点实验室, 广东 湛江 524022 2.国防科技工业水声一级计量站, 浙江 杭州 311400 |
| 摘 要： | 研制的矢量水听器自动校准系统在水声计量领域具有重要的应用价值,能够实现低频范围内矢量水听器的自动校准。利用动态信号采集卡采集被测信号和标准水听器的输出信号,对驻波管内的声场分布进行了测量分析,对系统的测量不确定度进行了分析评定,对声压灵敏度进行了比对测试。该系统校准矢量水听器的扩展不确定度为1.6dB。 |
| 关 键 词： | 计量学 矢量水听器 自动校准 驻波场 不确定度评定 |
Study and Implementation of the Auto-calibration System of Vector Hydrophone |
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| LIU Jin-chang,FEI Teng,LIU Ming-bo,Liao Shu-chang.Study and Implementation of the Auto-calibration System of Vector Hydrophone[J].Acta Metrologica Sinica,2011,32(6):526-530. | |
| Authors: | LIU Jin-chang FEI Teng LIU Ming-bo Liao Shu-chang |
| Affiliation: | 1. Science and Technology on Underwater Acoustic Antagonizing Laboratory, Zhanjiang, Guangdong 524022, China 2.National Defence Underwater Accoustics Calibration Laboratory, Hangzhou, Zhejiang 311400, China |
| Abstract: | Auto-calibration system of vector hydrophone has very important value in acoustic measurement. The system can accomplish low frequency auto-calibration of vector hydrophone. It can measure the signal amplitude of the standard hydrophone by dynamic signal acquisition. The sound field distribution is tested in the standing wave field. The standard uncertainty and expanded uncertainty of the system are analyzed and discussed. The comparison testing is given for pressure sensitivity. The expanded uncertainty of the system is 1.6dB. |
| Keywords: | Metrology Vector hydrophone Auto-calibration Standing wave field Uncertainty analysis |
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