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电荷放大器对压电式水声换能器测量的影响分析
Authors
吴剑明
张小康
+4 more
朱培斌
许肖梅
陶毅
黄身钦
Publication date
15 March 2018
Publisher
Abstract
为考察电荷放大器对压电式水声换能器测量的影响,通过电荷放大器转换后采集和数据采集卡直接采集的水声声压信号实测实验数据的比对分析,表明受水声换能器线缆的分布电容较大和数据采集卡输入阻抗相对较小等因素影响,数据采集卡直接采集压电式水声换能器信号会对信号的幅值和相位产生影响,且在低频段影响较大,进而给出在各类常见海洋水声应用中的考虑因素和使用建议。中国国家自然科学基金(NO:41676024和41376040);;国家海洋局公共科技研究基金(NO:201505027-2
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Last time updated on 10/06/2020