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Expansion of detectable area by floating electrodes in capacitive three-dimensional proximity sensor Cover

Expansion of detectable area by floating electrodes in capacitive three-dimensional proximity sensor

International Journal on Smart Sensing and Intelligent Systems
Volume 14 (2021): Issue 1 (January 2021)
By: M. Deguchi  
Open Access
|Nov 2021

Figures & Tables

Figure 1:

Basic configuration of sensing circuit using GIC as virtual inductor.
Basic configuration of sensing circuit using GIC as virtual inductor.

Figure 2:

Experimental setup to confirm the effect of expanding detection range by the floating electrode.
Experimental setup to confirm the effect of expanding detection range by the floating electrode.

Figure 3:

Photograph of electrodes used in the experiment shown in Figure 2.
Photograph of electrodes used in the experiment shown in Figure 2.

Figure 4:

Dependence of LPF output on distance y at x = 0.
Dependence of LPF output on distance y at x = 0.

Figure 5:

Dependence of LPF output on x at y = 10 mm.
Dependence of LPF output on x at y = 10 mm.

Figure 6:

Experimental setup of two-channel sensing.
Experimental setup of two-channel sensing.

Figure 7:

Circuit diagram of electronic circuit used in two-channel experiments.
Circuit diagram of electronic circuit used in two-channel experiments.

Figure 8:

Dependence of LPF output on x in two-channel sensing.
Dependence of LPF output on x in two-channel sensing.

Figure 9:

Comparison between estimated y and actual y.
Comparison between estimated y and actual y.

Figure 10:

Comparison between estimated x and actual x.
Comparison between estimated x and actual x.

Figure 11:

Experimental 3D proximity sensing panel frame.
Experimental 3D proximity sensing panel frame.

Figure 12:

Detection of hand position by 3D proximity sensing panel frame.
Detection of hand position by 3D proximity sensing panel frame.

Figure 13:

Example of application to non-contact menu selection panel.
Example of application to non-contact menu selection panel.
DOI: https://doi.org/10.21307/ijssis-2021-018 | Journal eISSN: 1178-5608
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Language: English
Page range: 1 - 11
Submitted on: Aug 30, 2021
Accepted on: Sep 27, 2021
Published on: Nov 1, 2021
Published by: Professor Subhas Chandra Mukhopadhyay
In partnership with: Paradigm Publishing Services
Publication frequency: 1 issue per year
Keywords:
Capacitive sensor,
Gesture input device,
3D position sensing,
Non-contact operation,
Proximity sensor,
Stray capacitance
Related subjects:
Engineering,
Introductions and overviews,
Engineering, other

© 2021 M. Deguchi, published by Professor Subhas Chandra Mukhopadhyay
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

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