通过混频激励提高磁性纳米测温精度
系统与控制
2024-06-19 v1 系统与控制
摘要
在本研究中，我们提出了一种磁性纳米粒子弛豫的温度模型以及混频激励场下的相位测量方法，可提高磁性纳米测温的温度精度。根据基于 Debye 的磁性纳米粒子磁化模型，利用混频处的相位求解对较高频率磁场的弛豫相位延迟。该方法可提高磁响应信号的信噪比，并削弱检测线圈因温度变化引起的相移。实验结果表明，该方法可实现小于 0.1K 的静态温度测量误差和小于 0.2K 的动态温度测量误差。
引用
@article{arxiv.2011.08532,
title = {Improving magnetic nanothermometry accuracy through mixing-frequency excitation},
author = {Silin Guo and Jay Liu and ZhongZhou Du and Wenzhong Liu},
journal= {arXiv preprint arXiv:2011.08532},
year = {2024}
}
备注
The following article has been submitted to Review of Scientific Instruments. After it is published, it will be found at https://aip.scitation.org/journal/rsi