基于量子的微波磁场传感器。

A Quantum-Based Microwave Magnetic Field Sensor.

机构信息

Key Laboratory of Time and Frequency Standards, National Time Server Center, Chinese Academy of Sciences, Xi'an 710600, China.

School of Astronomy and Space Science, University of Chinese Academy of Sciences, Beijing 100049, China.

出版信息

Sensors (Basel). 2018 Sep 30;18(10):3288. doi: 10.3390/s18103288.

DOI:10.3390/s18103288

PMID:30274348

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6210449/

Abstract

In this paper, a quantum-based method for measuring the microwave magnetic field in free space is presented by exploring atomic Rabi resonance in the clock transition of Cs. A compact cesium glass cell serving as the microwave magnetic field sensing head was used to measure the spatial distribution of microwave radiation from an open-ended waveguide antenna. The measured microwave magnetic field was not restricted by other microwave devices. The longitudinal distribution of the magnetic field was measured. The experimental results measured by the sensor were in agreement with the simulation. In addition, a slightly electromagnetic perturbation caused by the glass cell was investigated through simulation calculations.

摘要

本文通过探索铯的钟跃迁中的原子拉比共振，提出了一种基于量子的自由空间微波磁场测量方法。使用一个作为微波磁场传感头的紧凑的铯玻璃池来测量来自开路波导天线的微波辐射的空间分布。所测量的微波磁场不受其他微波设备的限制。测量了磁场的纵向分布。传感器测量的实验结果与模拟结果一致。此外，还通过模拟计算研究了玻璃池引起的轻微电磁干扰。