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Development of a Low Frequency Electric Field Probe Integrating Data Acquisition and Storage
Zhongyuan ZHOU Mingjie SHENG Peng LI Peng HU Qi ZHOU
IEICE TRANSACTIONS on Electronics
Publication Date: 2020/08/01
Online ISSN: 1745-1353
Type of Manuscript: PAPER
Category: Electromagnetic Theory
electric field probe, small size, monopole antenna, integral circuit, low frequency measurement, data acquisition and storage,
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A low frequency electric field probe that integrates data acquisition and storage is developed in this paper. An electric small monopole antenna printed on the circuit board is used as the receiving antenna; the rear end of the monopole antenna is connected to the integral circuit to achieve the flat frequency response; the logarithmic detection method is applied to obtain a high measurement dynamic range. In addition, a Microprogrammed Control Unit is set inside to realize data acquisition and storage. The size of the probe developed is not exceeding 20 mm × 20 mm × 30 mm. The field strength 0.2 V/m ~ 261 V/m can be measured in the frequency range of 500 Hz ~ 10 MHz, achieving a dynamic range over 62 dB. It is suitable for low frequency electric field strength measurement and shielding effectiveness test of small shield.