Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

NMR Spectrometers: Resolution and Error Correction01:14

NMR Spectrometers: Resolution and Error Correction

740
When magnetic nuclei in a sample achieve resonance and undergo relaxation, the signal detected in NMR is an approximately exponential free induction decay. Fourier transform of an exponential decay yields a Lorentzian peak in the frequency domain. Lorentzian peaks in an NMR spectrum are defined by their amplitude, full width at half maximum, and position, where the peak width is governed by the spin-spin relaxation time alone. In real experiments, however, the applied magnetic field is rendered...
740
NMR Spectrometers: Overview01:20

NMR Spectrometers: Overview

1.2K
NMR spectrometers consist of a strong magnet, a radiofrequency transmitter, and a detector attached to a computer console for recording spectra of samples containing NMR-active nuclei. In first-generation NMR instruments called continuous-wave spectrometers, the resonance frequencies of the nuclei are determined by frequency-sweep or field-sweep methods. The magnetic field strength is fixed and the rf signal is swept in the former, while the radiofrequency signal is fixed and the magnetic field...
1.2K

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Mitochondrial DNA Copy-Number Assessment Is a Potent Predictor for Prostate Cancer in White but Not Black Individuals.

Cancer prevention research (Philadelphia, Pa.)·2025
Same author

Massive pulmonary embolism after cesarean section in a pregnant with occult pneumonia after COVID-19 infection: A case report.

Medicine·2025
Same author

Nationwide analysis of routine clinical practices in the management of acute ischemic stroke patients in China.

International journal of stroke : official journal of the International Stroke Society·2025
Same author

The Radiosensitizing Effect of Tumor-Derived Microparticles Co-Loaded with Sorafenib and Gold Nanoparticles on Hepatocellular Carcinoma.

International journal of nanomedicine·2025
Same author

Behavior recognition technology based on deep learning used in pediatric behavioral audiometry.

Scientific reports·2025
Same author

LianChuang ZhiXue Liquid Enema Modulates the Macrophage Polarization of Ulcerative Colitis via Inhibiting the Jagged-1/Notch1 Signaling Pathway.

Drug design, development and therapy·2025

相关实验视频

Updated: Jul 28, 2025

Optimizing Magnetic Force Microscopy Resolution and Sensitivity to Visualize Nanoscale Magnetic Domains
07:42

Optimizing Magnetic Force Microscopy Resolution and Sensitivity to Visualize Nanoscale Magnetic Domains

Published on: July 20, 2022

2.8K

基于纤维化EOM的单束NMOR原子磁力计.

Mengnan Tian, Wei Quan, Liwei Jiang

    Optics letters
    |June 1, 2023
    PubMed
    概括
    此摘要是机器生成的。

    我们使用纤维化电光调制器 (EOM) 开发了一种新型单束非线性磁光旋转 (NMOR) 原子磁计. 这种便携式设备在地磁环境中实现了对磁场测量的高灵敏度.

    更多相关视频

    Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures
    08:01

    Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures

    Published on: November 21, 2019

    7.2K
    A Random-displacement Measurement by Combining a Magnetic Scale and Two Fiber Bragg Gratings
    08:23

    A Random-displacement Measurement by Combining a Magnetic Scale and Two Fiber Bragg Gratings

    Published on: September 30, 2019

    6.3K

    相关实验视频

    Last Updated: Jul 28, 2025

    Optimizing Magnetic Force Microscopy Resolution and Sensitivity to Visualize Nanoscale Magnetic Domains
    07:42

    Optimizing Magnetic Force Microscopy Resolution and Sensitivity to Visualize Nanoscale Magnetic Domains

    Published on: July 20, 2022

    2.8K
    Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures
    08:01

    Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures

    Published on: November 21, 2019

    7.2K
    A Random-displacement Measurement by Combining a Magnetic Scale and Two Fiber Bragg Gratings
    08:23

    A Random-displacement Measurement by Combining a Magnetic Scale and Two Fiber Bragg Gratings

    Published on: September 30, 2019

    6.3K

    科学领域:

    • 原子物理 原子物理
    • 量子光学就是一个量子光学.
    • 传感器技术 传感器技术

    背景情况:

    • 非线性磁光旋转 (NMOR) 原子磁仪为磁场传感提供了高精度的磁场传感器.
    • 现有的设计可能很庞大,限制了可移植性和集成性.
    • 地磁场测量需要灵敏和强大的仪器仪表.

    研究的目的:

    • 提出一种新的,便携式和集成的单束NMOR原子磁力计.
    • 研究振幅调制对系统性能的影响.
    • 为了优化调制参数以提高灵敏度.

    主要方法:

    • 开发使用纤维化电光调制器 (EOM) 的单束NMOR原子磁计.
    • 使用斯矩阵的系统响应理论建模.
    • 对响应信号的调制幅度影响的分析.
    • 实验确定最佳调制参数.

    主要成果:

    • 展示了一种新的单束NMOR原子磁力计设计与纤维化的EOM.
    • 一个理论模型基于调制幅度准确预测了系统响应.
    • 通过理论分析和实验确定了最佳调制参数.
    • 在50μT磁场下达到42.67 fT/Hz1/2的灵敏度.

    结论:

    • 拟议的基于纤维化的EOM的NMOR原子磁力计为集成设计提供了一个可行的方案.
    • 开发的理论模型提供了一种优化调制参数的方法.
    • 这种便携式磁力计显示出在地磁环境中对磁场测量的巨大潜力.
    • 该方案可适应在类似环境中的其他磁力计应用.