Design and implementation of a low cost isotropic electric field sensor for SAR measurements

IF 1.3 4区工程技术 Q3 COMPUTER SCIENCE, INFORMATION SYSTEMS

IEEE Latin America Transactions Pub Date : 2024-10-29 DOI:10.1109/TLA.2024.10738269

Marco Quispe;Javier Samaniego;Jorge Olivares;Rolando Adriano;Brayan Perez;Saúl Inca

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引用次数: 0

Abstract

Specific Absorption Rate (SAR) measurement systems are used to evaluate exposure to fields radiated by wireless devices placed close to people's bodies. One of the fundamental elements of these systems is an isotropic electric field sensor that is small relative to the radiated wavelength. The obtained SAR value must be compared with the basic restriction levels or exposure limits established by the International Commission on Non-Ionizing Radiation Protection (ICNIRP) or similar international bodies. This work presents the design and implementation of a novel isotropic electric field sensor made with low-cost materials and processes. The response of the developed sensor was compared with the response of a commercial probe in order to perform calibration. The calibration methodology proposed in this work allows transforming voltage measured with the developed low-cost probe to electric field values measured with a calibrated commercial probe in order to calculate SAR values. The results show that the developed sensor can be used in SAR measurement processes.

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设计并实现用于合成孔径雷达测量的低成本各向同性电场传感器

比吸收率（SAR）测量系统用于评估人们暴露在靠近身体的无线设备辐射场中的情况。这些系统的基本要素之一是一个相对于辐射波长较小的各向同性电场传感器。获得的 SAR 值必须与国际非电离辐射防护委员会（ICNIRP）或类似国际机构规定的基本限制水平或暴露限值进行比较。这项工作介绍了一种新型各向同性电场传感器的设计和实施，该传感器采用低成本材料和工艺制成。为了进行校准，将所开发传感器的响应与商用探头的响应进行了比较。这项工作中提出的校准方法可以将使用所开发的低成本探头测量的电压值转换为使用校准过的商用探头测量的电场值，从而计算出 SAR 值。结果表明，开发的传感器可用于 SAR 测量过程。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Latin America Transactions COMPUTER SCIENCE, INFORMATION SYSTEMS-ENGINEERING, ELECTRICAL & ELECTRONIC

CiteScore

3.50

自引率

7.70%

发文量

192

审稿时长

3-8 weeks

期刊介绍： IEEE Latin America Transactions (IEEE LATAM) is an interdisciplinary journal focused on the dissemination of original and quality research papers / review articles in Spanish and Portuguese of emerging topics in three main areas: Computing, Electric Energy and Electronics. Some of the sub-areas of the journal are, but not limited to: Automatic control, communications, instrumentation, artificial intelligence, power and industrial electronics, fault diagnosis and detection, transportation electrification, internet of things, electrical machines, circuits and systems, biomedicine and biomedical / haptic applications, secure communications, robotics, sensors and actuators, computer networks, smart grids, among others.