Prediction of Trace Element based Energizing Sensor Control System using PWM

International Conference on Aerospace and Mechanical Engineering 2017

航空航天工程;机械制造

Mohamed Zukri, Mohammad Nizar Bin^1 ; Abu Bakar, Elmi Bin^1 ; Uchiyama, Naoki^2 ; Bin Abdullah, Mohamad Nazir^3

School of Aerospace Engineering, Universiti Sains Malaysia, Penang, Malaysia^1

Department of Mechanical Engineering, Toyohashi University of Technology, Aichi, Japan^2

School of Electrical and Electronic Engineering, Universiti Sains Malaysia, Penang, Malaysia^3

关键词: Complicated circuits;    Conductivity sensors;    Hardware and software;    Industrial discharges;    Monitoring system;    Stable measurements;    Standard reduction potentials;    Wireless communication network;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/370/1/012042/pdf
DOI  :  10.1088/1757-899X/370/1/012042

学科分类：航空航天科学

来源: IOP

【 摘 要 】

A real-time system for field-work monitoring wastewater laden with heavy metal in industrial discharge through wireless communication network was developed. The monitoring system poses an interesting challenge in order to determine existing metal ion in the solution whereas the previous result only consider total dissolve ion. This paper aims to distinguish the metal ion based on reaction determination in solution. The control algorithm was implemented as generating voltage input for energize conductivity sensor since the voltage corresponding to oxidation and reaction based on standard reduction potential. Implementation of ATmega2560 microcontroller for control voltage fed on sensor equivalent to controlling the PWM duty cycle. PID controller was designed uses a microcontroller (Arduino) platform with manual tuning for identify reaction process and sufficient voltage input. From the experimental result, is found that the proposed PI controller has excellent tracking and measurement performance. Low-pass filter was applied in programming to make the system understand that signal has achieved stable. The development of hardware and software of the closed loop system has an enhancement of measurement performance and high feasibility for SME's company in economic point of view. The desired objective is to achieve a system with the stable measurement and sufficient voltage supply. This system will provide an accurate and precise control efficiently without using costly component and complicated circuit.