CSIR-National Physical Laboratory, New Delhi, India.
Academy of Innovative and Scientific Research (Acsir), Ghaziabad, India.
Electromagn Biol Med. 2022 Jan 2;41(1):60-70. doi: 10.1080/15368378.2021.2001652. Epub 2021 Dec 2.
This study distinguishes the design and analysis of a coaxial probe for measurement of biological body dielectric properties, in this measurement estimating the human tissue-equivalent liquid (TEL) permittivity and conductivity, to monitor and maintain the international standards for specific absorption rate (SAR) evaluation over the frequency band of 800 MHz-5 GHz. In addition, deionized (DI) water and ethanediol dielectric properties have been evaluated and the designed probe results compared to the commercial Dielectric Assessment kit (DAK) 3.5 probe. The obtained results are in good agreement with each other, moreover, the SAR calculation and each source of uncertainty budget analysis are estimated. Therefore, this fabricated probe may be suitable for liquid dielectric properties measurement.
本研究设计并分析了一种用于测量生物体内介电特性的同轴探头，该探头用于估计人体组织等效液体（TEL）的介电常数和电导率，以监测和维持特定吸收率（SAR）评估的国际标准，频率范围为 800MHz-5GHz。此外，还评估了去离子（DI）水和乙二醇的介电特性，并将设计的探头结果与商业介电评估套件（DAK）3.5 探头进行了比较。得到的结果彼此吻合良好，此外，还对 SAR 计算和每个不确定度预算分析的来源进行了估计。因此，这种探头可用于液体介电特性的测量。
