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紧凑型曝光计设备，用于表征和记录78兆赫兹至6吉赫兹频段、具有多个窄带（300千赫兹）的电磁场。

Compact Exposimeter Device for the Characterization and Recording of Electromagnetic Fields from 78 MHz to 6 GHz with Several Narrow Bands (300 kHz).

作者信息

Rivera González Marco Xavier, Félix González Nazario, López Isabel, Ochoa Zambrano Juan Sebastián, Miranda Martínez Andrés, Maestú Unturbe Ceferino

机构信息

Center for Biomedical Technology (CTB), Universidad Politécnica de Madrid (UPM), 28040 Madrid, Spain.

School of Computer Systems Engineering (ETSISI), Universidad Politécnica de Madrid (UPM), 28040 Madrid, Spain.

出版信息

Sensors (Basel). 2021 Nov 7;21(21):7395. doi: 10.3390/s21217395.

DOI:10.3390/s21217395
PMID:34770707
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8588337/
Abstract

A novel compact device with spectrum analyzer characteristics has been designed, which allows the measuring of the maximum power received in multiple narrow frequency bands of 300 kHz, recording the entire spectrum from 78 MHz to 6 GHz; the device is capable of measuring the entire communications spectrum and detecting multiple sources of electromagnetic fields using the same communications band. The proposed device permits the evaluation of the cross-talk effect that, in conventional exposimeters, generates a mistake estimation of electromagnetic fields. The device was calibrated in an anechoic chamber for far-fields and was validated against a portable spectrum analyzer in a residential area. A strong correlation between the two devices with a confidence higher than 95% was obtained; indicating that the device could be considered as an important tool for electromagnetic field studies.

摘要

设计了一种具有频谱分析仪特性的新型紧凑型设备，该设备能够测量在300 kHz多个窄频带中接收到的最大功率，记录从78 MHz到6 GHz的整个频谱；该设备能够测量整个通信频谱，并使用相同的通信频段检测多个电磁场源。所提出的设备允许评估串扰效应，在传统的暴露计中，这种串扰效应会产生对电磁场的错误估计。该设备在用于远场的消声室中进行了校准，并在居民区与便携式频谱分析仪进行了验证。获得了两种设备之间的强相关性，置信度高于95%；这表明该设备可被视为电磁场研究的重要工具。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3882/8588337/d668c775f5f0/sensors-21-07395-g008.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3882/8588337/3a3f75a7503c/sensors-21-07395-g0A1.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3882/8588337/9edcbcc961e8/sensors-21-07395-g0A8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3882/8588337/db35a7f5c6e4/sensors-21-07395-g0A9.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3882/8588337/9d09a60c7765/sensors-21-07395-g0A10.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3882/8588337/cbbc363d56e7/sensors-21-07395-g0A11.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3882/8588337/a8688ad3ead4/sensors-21-07395-g0A12.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3882/8588337/66cb84f5f6c1/sensors-21-07395-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3882/8588337/6ef771ab05a6/sensors-21-07395-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3882/8588337/8d353988ff83/sensors-21-07395-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3882/8588337/a1e4abc71781/sensors-21-07395-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3882/8588337/b2063e912c93/sensors-21-07395-g005.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3882/8588337/d668c775f5f0/sensors-21-07395-g008.jpg

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Thermal and non-thermal health effects of low intensity non-ionizing radiation: An international perspective.
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