使用微波传感器进行实时微塑料评估的便携式多通道测量系统
André Barrancos1,2, Diogo Rosinha1, Jorge Assis2
1Instituto de Telecomunicações, Av. Rovisco Pais 1, 1049-001 Lisbon, Portugal.
Sensors (Basel, Switzerland)
|January 28, 2026
概括
这项研究介绍了一种使用微波传感器的多通道电子系统,用于实时检测水中的微塑料. 该系统可以同时分析各种尺寸和特性的微塑料.
科学领域:
- 环境科学 环境科学
- 电气工程 电气工程
- 传感器技术 传感器技术
背景情况:
- 微塑料污染是一个日益严重的环境问题,需要有效的检测方法.
- 现有的微塑料评估方法可能耗时,缺乏实时能力.
- 微波传感为检测液体中的微粒提供了一个有希望的,非侵入性的方法.
研究的目的:
- 开发和描述一个多通道电子测量系统,用于实时微塑料评估.
- 通过使用多个微波传感器,实现不同尺寸和特性的微塑料的同时检测.
- 为了验证系统在水流中的微塑料颗粒的性能.
主要方法:
- 设计了一个集成无线电频率集成电路和微处理器的多通道系统.
- 激发信号使用ADF4351频率合成器 (700 MHz3.5 GHz) 生成.
- 一个ADL5902功率探测器和MSP430FR2355微处理器处理信号调节,获取和处理.
主要成果:
- 该系统在水性环境中展示了实时微塑料检测能力.
- 鉴定证实了信号生成 (700 MHz3.5 GHz) 和传感器输出检测 (-50 dBm至-5 dBm).
- 验证显示,在10毫升/分钟流速下成功检测到400微米的聚乙烯球体.
结论:
- 开发的多通道系统为微塑料监测提供了紧且低功耗的解决方案.
- 该系统的设计支持集成多个传感器进行全面的微塑料分析.
- 这项技术有可能促进环境监测和水质评估.
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