Fig. 4. (Color online) Capacitance-time graph measured by frequency through the original pattern sensor (a) 50 kHz (b) 100 kHz (c) 150 kHz (d) 200 kHz (e) 250 kHz.

New Phys.: Sae Mulli 2023;73:840~850 https://doi.org/10.3938/NPSM.73.840

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