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相关概念视频

Peptide Identification Using Tandem Mass Spectrometry01:33

Peptide Identification Using Tandem Mass Spectrometry

Tandem mass spectrometry, also known as MS/MS or MS2, is an analytical technique that employs two mass analyzers. Essentially it is a series of mass spectrometers that helps isolate a particular biomolecule and then helps study its chemical properties.
This technique helps gather information regarding the protein from which the peptide was obtained and to study the peptides’ amino acid sequence. Identifying peptides from a complex mixture is an important component of the growing field of...

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相关实验视频

Updated: May 20, 2026

Measuring Spatially- and Directionally-varying Light Scattering from Biological Material
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基于二维位置敏感探测器及其精度分析的扫描镜基准测试平台.

Hexiang Guo1, Junya Wang1, Zheng You1

  • 1School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China.

Micromachines
|March 27, 2025
PubMed
概括

这项研究引入了一个新的基准平台,用于准确测量微电机系统 (MEMS) 扫描镜的性能. 开发的系统精确量化了偏斜角度,共振频率和角分辨率,用于先进的应用.

科学领域:

  • 光电学是指光电子产品.
  • 机械工程 机械工程
  • 微系统工程 微系统工程

背景情况:

  • 微电机系统 (MEMS) 扫描镜是激光雷达,医疗成像和激光投射显示器中的关键组件.
  • 精确测量MEMS扫描镜指数对于性能验证和定义应用场景至关重要.

研究的目的:

  • 设计和建造一个用于精确,二维测量MEMS扫描镜参数的基准平台.
  • 分析开发的测量系统的角测试不确定性.

主要方法:

  • 使用二维位置敏感探测器 (PSD) 创建一个扫描镜基准平台.
  • 开发了用于测量偏斜角度,共振频率和角分辨率的特定测试程序.
  • 计算的角测试不确定性,考虑到光学对齐和PSD测量错误.

主要成果:

  • 该平台准确地测量MEMS扫描镜参数,包括偏移角度,共振频率和角分辨率.
  • 在PSD和镜子之间的距离为100毫米时,可测量的偏斜角度从-6.34°到+6.34°不等.
  • 达到高精度,测量0.00097°在0.01°偏斜和0.011°在6.34°偏斜.

结论:

  • 设计的基准平台为MEMS扫描镜性能提供了准确可靠的测量.
关键词:
2D-PSD 2D-PSD 是一个 2D-PSD 系统.在MEMS扫描镜中使用MEMS扫描镜准确性分析的准确性分析基准测试平台 基准测试平台 是一个测试平台.

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  • 这种高精度系统可以有效地验证MEMS扫描镜在各种应用中的性能和适用性.