A non-contact passive electromagnetic transmitter to any capacitive sensor — design, theory, and model tests

R.S. Jachowicz , G. Wójtowicz , Jerzy Weremczuk


This paper presents a non-contact passive electromagnetic interface especially dedicated to capacitive sensors. In contrast to radio transmitters cooperating with remote sensors, our interface is extremely simple and requires integration only for the single plane coil with the capacitive semiconductor sensor structure. The interface structure and theoretical calculations done with the use of the Grover method are discussed in the paper. Presented data from interface tests proved that the interface can successfully operate with the frequency of some 11 MHz obtaining sensitivity of some 15 Ω/pF in the range of 0–22 pF.
Author R.S. Jachowicz - [Politechnika Warszawska]
R.S. Jachowicz,,
, G. Wójtowicz - [Warsaw University of Technology (PW)]
G. Wójtowicz,,
- Politechnika Warszawska
, Jerzy Weremczuk (FEIT / PE)
Jerzy Weremczuk,,
- The Institute of Electronic Systems
Journal seriesSensors and Actuators A Physical, ISSN 0924-4247
Issue year2000
Keywords in EnglishElectromagnetic transmitter, Non-contact sensor transmitter, Passive telemetry
ASJC Classification2208 Electrical and Electronic Engineering; 2506 Metals and Alloys; 2508 Surfaces, Coatings and Films; 3104 Condensed Matter Physics; 3105 Instrumentation; 2504 Electronic, Optical and Magnetic Materials
URL http://www.sciencedirect.com/science/article/pii/S0924424700003988
Score (nominal)35
Score sourcejournalList
Publication indicators WoS Citations = 14; Scopus Citations = 16; GS Citations = 26.0; Scopus SNIP (Source Normalised Impact per Paper): 2014 = 1.798; WoS Impact Factor: 2006 = 1.434 (2) - 2007=1.696 (5)
Citation count*27 (2020-09-24)
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