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

M. Deguchi

M. Deguchi

National Institute of Technology, Niihama CollegeEhime 792-8580, Japan
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Deguchi, M.
  
Nov 01, 2021
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Published Online: Nov 01, 2021
Page range: 1 - 11
Received: Aug 30, 2021
Accepted: Sep 27, 2021
DOI: https://doi.org/10.21307/ijssis-2021-018
Keywords
© 2021 M. Deguchi et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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.
Language:
English
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Journal Subjects:
Engineering, Introductions and Overviews, Engineering, other
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