装备环境工程
裝備環境工程
장비배경공정
EQUIPMENT ENVIRONMENTAL ENGINEERING
2014年
5期
58-61
,共4页
海洋环境水下电场%时频特征%能量分配
海洋環境水下電場%時頻特徵%能量分配
해양배경수하전장%시빈특정%능량분배
underwater electric field in ocean environment%time-frequency characteristic%energy distribution
目的:掌握海洋环境水下电场主要能量来源和衰减规律。方法结合理论研究环境电场幅值随时间的变化规律,重点分析水下环境电场不同频带的频谱分布,最后计算得到海洋环境水下电场不同频点的幅值在整个频带所占比重。结果海洋环境水下电场随海水电导率和海水运动强度的减弱,幅值降低,能量主要集中在0.01~1 Hz 的低频以及工频处,在一定的空间范围内海洋环境水下电场的一致性较强。结论实验结果与理论分析结果具有一定的吻合度。
目的:掌握海洋環境水下電場主要能量來源和衰減規律。方法結閤理論研究環境電場幅值隨時間的變化規律,重點分析水下環境電場不同頻帶的頻譜分佈,最後計算得到海洋環境水下電場不同頻點的幅值在整箇頻帶所佔比重。結果海洋環境水下電場隨海水電導率和海水運動彊度的減弱,幅值降低,能量主要集中在0.01~1 Hz 的低頻以及工頻處,在一定的空間範圍內海洋環境水下電場的一緻性較彊。結論實驗結果與理論分析結果具有一定的吻閤度。
목적:장악해양배경수하전장주요능량래원화쇠감규률。방법결합이론연구배경전장폭치수시간적변화규률,중점분석수하배경전장불동빈대적빈보분포,최후계산득도해양배경수하전장불동빈점적폭치재정개빈대소점비중。결과해양배경수하전장수해수전도솔화해수운동강도적감약,폭치강저,능량주요집중재0.01~1 Hz 적저빈이급공빈처,재일정적공간범위내해양배경수하전장적일치성교강。결론실험결과여이론분석결과구유일정적문합도。
Objective To master the main energy source and attenuation law of underwater electric field in ocean envi-ronment. Methods The variation environmental electric field amplitude with time was studied in combination with the theo-ries. The frequency spectral distribution at different frequency bands of the underwater environmental electric field was ana-lyzed in detail. Finally, the proportions of the amplitude values at different frequency points in the whole frequency band of the underwater electric field in ocean environment were calculated. Results The results showed that the amplitude of the underwater electric field in ocean environment reduced with the decrease of the conductivity and the movement of the sea water. The energy was mainly concentrated in the 0. 01 ~ 1 Hz low frequency and power frequency range. The ocean envi-ronment electric field showed strong consistency within certain space range. Conclusion The experimental results showed a certain degree of agreement with the theoretical analysis results.