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相关概念视频

Electronic Distance Measuring Instruments01:30

Electronic Distance Measuring Instruments

Electronic Distance Measuring Instruments (EDMs) are essential tools in modern surveying, offering precise distance measurements by emitting electromagnetic signals and calculating the time required for these signals to travel to a target and return. Two primary types of signals are used in EDMs — light waves and microwaves — each suited to specific environmental and distance requirements. Light-wave-based EDMs utilize either infrared or laser light, providing high accuracy over short distances...

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相关实验视频

Updated: Jun 24, 2026

Wideband Optical Detector of Ultrasound for Medical Imaging Applications
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基于光机电共振器的同时光学和机械传感.

Elena Sentre-Arribas1, Alicia Aparicio-Millán1, Aristide Lemaître2

  • 1OptoMechanicalSensors Lab, Instituto de Micro y Nanotecnología, IMN-CNM (CSIC), Isaac Newton 8 (PTM), E-28760 Tres Cantos, Madrid Spain.

ACS sensors
|December 29, 2023
PubMed
概括

这项研究将光学和机械共振器集成到纳米级设备中,以增强环境传感. 结合这两种共振类型,可显著提高传感器性能和温度和湿度检测的分辨率.

关键词:
生物和化学传感感应.环境监测 环境监测 环境监测多参数传感传感器光学和机械传感器.光学机械共振器的使用方法

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科学领域:

  • 物理 物理学 物理
  • 材料科学 材料科学 材料科学
  • 纳米技术纳米技术

背景情况:

  • 光学和机械共振器广泛用于传感,但分别开发.
  • 纳米级光机械磁盘共振器在小体积下提供高质量的光学和机械模式.

研究的目的:

  • 研究将光学和机械共振结合在一个传感器件中的协同效益.
  • 为了确定环境传感应用的性能改进.

主要方法:

  • 使用纳米级光机械磁盘共振器,支持同时的光学和机械模式.
  • 描述光学和机械对温度和相对湿度的响应.
  • 分析频率稳定性以确定检测的极限.

主要成果:

  • 机械模式对相对湿度 (0.05%分辨率) 的敏感度更高.
  • 光学模式显示更高的温度灵敏度 (0.6mK分辨率).
  • 同时监测可以实现0.1%的湿度和1mK的温度分辨率.

结论:

  • 整合光学和机械共振器可以显著提高传感器性能.
  • 同时监测允许分离环境参数.
  • 活动光学模式跟踪对于最佳的光机械传感器操作至关重要.