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相关概念视频

IR Frequency Region: Fingerprint Region01:03

IR Frequency Region: Fingerprint Region

746
IR spectra are divided into two main regions: the diagnostic region and the fingerprint region. The diagnostic region of the spectrum lies above 1500 cm−1. The absorptions resulting from single-bond vibrations of the N–H, C–H, and O–H stretch at higher wavenumbers and appear on the left side of the spectrum. The stretching absorptions of the C≡C and C≡N occur between 2100–2300 cm−1. In contrast, those arising from stretching absorptions of the...
746
Electronic Distance Measuring Instruments01:30

Electronic Distance Measuring Instruments

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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...
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相关实验视频

Updated: Jun 4, 2025

Microfluidic Platform with Multiplexed Electronic Detection for Spatial Tracking of Particles
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灵活的被动无线传感平台,具有频率映射和多模式融合.

Kai Wang1, Lifeng Wang1, Jiawei Si1

  • 1Key Laboratory of MEMS of the Ministry of Education, Southeast University, Nanjing 210096, China.

ACS applied materials & interfaces
|January 3, 2025
PubMed
概括

本研究介绍了一种用于物联网 (IoT) 的新型多式联络融合传感平台. 该被动无线单元有效解码四个参数,使微型,低成本的电子皮肤应用.

关键词:
在装载SAWR时.多模式传感传感器一块一块的线性脱.权力依赖性 权力依赖性一个单一组件的单一组件.无线通信是一种无线通信.

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科学领域:

  • 材料科学 材料科学 材料科学
  • 传感器技术 传感器技术
  • 物联网 (IoT) 的互联网.

背景情况:

  • 多模式传感器对于物联网应用,如人机交互和电子皮肤至关重要.
  • 现有的多式联网传感器受困于庞大的架构和复杂的解机制.
  • 需要集成,被动的无线传感解决方案.

研究的目的:

  • 提出使用电力依赖的断片线性解机制的多式融合传感平台.
  • 从单个被动无线组件中演示四个参数的感知和解码.
  • 为了验证平台在可穿戴设备,特别是电子皮肤中的有效性.

主要方法:

  • 开发了一种系统模型来分析线性传感特性.
  • 利用激发功率依赖性用于多种刺激的定量线性解.
  • 采用功能化传感膜 (聚氨酸/氧化石墨烯) 进行同步监控.
  • 将四个参数 (湿度,温度,紫外线,近距离) 映射到共振频率 (f).

主要成果:

  • 该平台成功地从单个被动无线组件中解码了四个参数.
  • 脱后的实验错误显著减少:温度 (5.70%),湿度 (4.00%),紫外线 (5.00%) 和近距离 (8.30%).
  • 与初始输出错误相比,实现了显著的改进 (高达~20%).

结论:

  • 开发的单元多式融合传感平台为小型化提供了战略优势.
  • 该平台是被动无线和低成本 (低于1美元),非常适合物联网信号识别.
  • 简化了简单的电路布局,并扩大了物联网生态系统中的传感器配置.