Project 08

Paper Quantity Detection System Based on Capacitance Variation (National 1st Prize)

Designed a paper quantity measurement device based on LC parallel resonance for the 2019 National Undergraduate Electronics Design Contest. Won national first prize.

The Sensor

Paper quantity detection system hardware — copper plates, voltage switching module, buzzer, master controller, LCD display

System hardware — copper plate sensor, voltage switching module, buzzer, master controller, LCD display

Technical Details

Designed a sensor consisting of an LC parallel resonator with an inductance and two copper plates
Created a piecewise nonlinear mathematical model relating paper count to resonance frequency
Fabricated and developed the equipment, capable of measuring up to 80 sheets of paper

National 1st Prize — 2019 National Undergraduate Electronics Design Contest, August 2019

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