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相关概念视频

Atomic Absorption Spectroscopy: Atomization Methods01:25

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Atomic Absorption Spectroscopy (AAS) atomizes samples through flame atomization or electrothermal atomization. Flame atomization typically involves a nebulizer and spray chamber assembly to combine the sample with a fuel–oxidant mixture, creating a fine aerosol mist that enters a burner. Typically, the fuel and oxidant are combined in an approximately stoichiometric ratio. However, for atoms that are easily oxidized, a fuel-rich mixture may be more advantageous. Only about 5% of the...
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Atomic Emission Spectroscopy: Instrumentation01:22

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The instrumentation of atomic emission spectrometry (AES) involves various components, including atomization devices that convert samples into gas-phase atoms and ions. There are two main types of atomization devices: continuous and discrete atomizers.  Continuous atomizers, like plasmas and flames, introduce samples in a constant stream, while discrete atomizers inject individual samples using syringes or autosamplers. The most common discrete atomizer is the electrothermal atomizer.
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Atomic Emission Spectroscopy: Lab01:29

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AES is a powerful analytical technique, especially effective when used with plasma sources, producing abundant spectra in characteristic emission lines. The Inductively Coupled Plasma (ICP), in particular, yields superior quantitative analytical data due to its high stability, low noise, low background, and minimal interferences under optimal experimental conditions. However, newer air-operated microwave sources are emerging as promising alternatives that could be more cost-effective than...
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一个基于电离的气溶传感器及其性能研究研究

Yong Zhang1,2, Chunqi Wang3, Liang Xie3

  • 1School of Instrument Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China.

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|September 14, 2024
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概括
此摘要是机器生成的。

一个新的电离传感器可以检测离子电池热失控的早期气溶排放,并提供实时的火灾警告. 这种先进的传感器提供了高精度,以提高新能源汽车的安全性.

关键词:
在MEMS MEMS中使用.一个气溶传感器传感器.电离的类型是电离类型.微子柱子是一个微子柱子.

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科学领域:

  • 材料科学 材料科学 材料科学
  • 化学工程是化学工程的重要组成部分.
  • 电气工程 电气工程

背景情况:

  • 由于离子电池的风险,新能源汽车的安全性至关重要.
  • 气溶排放在电池热失控期间的气体释放之前.
  • 目前的气溶传感器缺乏实时监测和高精度.

研究的目的:

  • 开发一个高精度,实时的气溶传感器,用于早期检测离子电池的热失控.
  • 调查拟议的传感器的静态和动态响应特性.

主要方法:

  • 使用微电机械系统 (MEMS) 技术设计和制造了一种基于电离机制的气溶传感器.
  • 传感器的运行原理是场辐射,场充电和气体放电.
  • 详细研究了静态和动态响应特征.

主要成果:

  • 该MEMS制造的传感器在范围,灵敏度和可重复性方面表现出卓越的性能.
  • 观察到非常好的响应时间和低的非线性.
  • 传感器有效地检测到早期的气溶排放,这表明热失控.

结论:

  • 拟议的基于电离机制的气溶传感器为实时气溶检测提供了重大进展.
  • 这项技术为提高电动汽车离子电池安全提供了一个新的,高潜力的解决方案.
  • 通过准确和及时的气溶度测量,可以实现电池火灾的早期预警.