Development Of Foreign Material In Food Detection Sensor Using Resistance Concept

Rizalman, Nur Farhana Intan Suhaila (2017) Development Of Foreign Material In Food Detection Sensor Using Resistance Concept. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

Electrical Resistance Sensor for detect the foreign material in food detection sensor is constructed and presented in this work.This project focuses on how to design and implement the system to detect and distinguish between food and foreign material using resistance concept.The electrode plate of Electrical Resistance Sensor (ERS) is designed using Comsol Multiphysics Software to see the electric field and contour of the electric potential of the system.The resistance value from the sensor is measured based on AC Circuit concept. The alternating current from the sensor flows to the charge detector circuit providing the voltage corresponding to the resistance between the electrode pair.The voltage from the charge detector circuit has been amplified by amplifier circuit to obtained DC output from AC input signal.The voltage form circuit has been converted from the analog to digital signal using Bluetooth Electronics Application via Arduino Uno through HC-05 Bluetooth module.The Bluetooth Electronics Application is used as graphical user interface (GUI) to display the condition of the material tested including food and foreign material to smartphone.

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