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A temperature control system for near infrared spectroscopic analysis using proportional controller

Aminondin, Ammar Ariff and Chia, Kim Seng (2017) A temperature control system for near infrared spectroscopic analysis using proportional controller. International Journal of Integrated Engineering, 9 (3). pp. 24-28. ISSN 26007916

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Near infrared spectroscopy (NIRS) has been widely investigated as an alternative to replace conventional chemical analysis. However, NIRS analysis is susceptible to the change of surrounding temperature. This would affect the NIRS analysis and could cause the result to be inconsistent. Therefore, this paper presents a work in designing the temperature control system for NIRS data acquisition. First, the cooling element of the system was designed using a TEC1-12706 Peltier as a cooling element, and a temperature sensor LM35 was used to measure the temperature inside the data acquisition container. The pulse-width modulation signal of a microcontroller was used to control the N-channel MOSFET so that the desired temperature can be achieved. The Arduino Uno was used as the microcontroller of the system. Lastly, a proportional controller was applied for forming the temperature control system in the container and the performance of the system was analyzed. Results show that the proportional controller outperformed the logic controller. Findings indicate that the proposed control system with optimal Kp value is able to maintain the desired temperature.

Item Type: Article
Uncontrolled Keywords: Near infrared spectroscopy (NIRS); proportional controller; Peltier; temperature control system
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7800-8360 Electronics
Divisions: Faculty of Electrical and Electronic Engineering > Department of Robotic and Mechatronic Engineering
Depositing User: Mr. Mohammad Shaifulrip Ithnin
Date Deposited: 31 Oct 2019 02:38
Last Modified: 31 Oct 2019 02:38
URI: http://eprints.uthm.edu.my/id/eprint/11809
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