一个低成本的被动声学工具包用于水下录音
Vassilis Galanos1, Vasilis Trygonis1, Antonios D Mazaris2
1Department of Marine Sciences, School of the Environment, University of the Aegean, University Hill, 81100 Mytilene, Greece.
Sensors (Basel, Switzerland)
|December 11, 2025
概括
一个新的低成本水声机工具包 (约50欧元) 能够以负担得起的价格进行水下音景监测. 该系统有效地检测人造声音,使被动声学监测可供公民科学和研究使用.
科学领域:
- 海洋生物学 海洋生物学
- 声学 声学 在声学方面
- 环境科学 环境科学
背景情况:
- 被动声学监测 (PAM) 对于研究海洋声景和人类影响至关重要.
- 科学水声机的高成本限制了PAM的广泛部署和公民科学参与.
研究的目的:
- 设计,建造和评估一个低成本的水声机工具包,用于可访问的被动声学监控.
- 与校准的科学仪器相比,评估低成本系统的性能.
主要方法:
- 开发了一个使用现成的部件 (约20欧元) 配合手持录音机 (总系统成本约50欧元) 的水声单元.
- 在希腊不同沿海环境 (海洋保护区,港口,水产养殖,珊瑚礁) 进行实地实验.
- 从低成本水声机与校准科学水声机 (SNAP) 的录音进行了比较.
主要成果:
- 这种低成本的液电话系统在现场条件下证明了机械的坚固性.
- 它始终检测到大多数由科学参考水音机识别的人为声音.
- 在低频 (<200 Hz) 和中频共振 (3 kHz) 观察到性能限制.
结论:
- 低成本的水声机工具包为大规模,预算意识的被动声学监控提供了可行的,可扩展的解决方案.
- 这个系统对公民科学,教育宣传和资源有限的研究小组有很大的潜力.
- 进一步开发可以解决更广泛应用的频率限制.
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