A calibration of E-field probe based on tissue-equivalent liquid waveguide and evaluation of uncertainty

Dianyuan Qi; Zongying Yu; Jing Zhao; Fangzhu Zou; Dianyuan Qi; Zongying Yu; Jing Zhao; Fangzhu Zou

doi:10.3934/mbe.2019397

Mathematical Biosciences and Engineering

2019, Volume 16, Issue 6: 7911-7920. doi: 10.3934/mbe.2019397

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Research article Special Issues

A calibration of E-field probe based on tissue-equivalent liquid waveguide and evaluation of uncertainty

China Academy of Information and Communications Technology, Beijing 100191, China

Received: 12 March 2019 Accepted: 25 July 2019 Published: 28 August 2019

For the accuracy of Specific Absorption Rate (SAR) measurement, there is a need to have the measuring instrument, the E-field probe, calibrated on a regular basis, however, the conventional calibration approach can be complicated for an encapsulated dosimestic E-field probe. This paper proposed a new method to obtain the conversion factor of the E-field probe in the simulant tissue. The novelty of this proposal is that it can simplify the procedure of the conversion factor analysis, by employing the liquid waveguide with known E-filed as a component of the reference field to compare with the measured E-field of the dosimestic probe immersed in the equivalent-tissue liquid. Also, this paper evaluated the uncertainty of calibration for this method.
- conversion factor,
- liquid waveguide,
- e-field probe,
- calibration,
- uncertainty
Citation: Dianyuan Qi, Zongying Yu, Jing Zhao, Fangzhu Zou. A calibration of E-field probe based on tissue-equivalent liquid waveguide and evaluation of uncertainty[J]. Mathematical Biosciences and Engineering, 2019, 16(6): 7911-7920. doi: 10.3934/mbe.2019397

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Abstract

For the accuracy of Specific Absorption Rate (SAR) measurement, there is a need to have the measuring instrument, the E-field probe, calibrated on a regular basis, however, the conventional calibration approach can be complicated for an encapsulated dosimestic E-field probe. This paper proposed a new method to obtain the conversion factor of the E-field probe in the simulant tissue. The novelty of this proposal is that it can simplify the procedure of the conversion factor analysis, by employing the liquid waveguide with known E-filed as a component of the reference field to compare with the measured E-field of the dosimestic probe immersed in the equivalent-tissue liquid. Also, this paper evaluated the uncertainty of calibration for this method.

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