Design, development, and performance study of a PWM based thermostat system for viscosity measurement

Kinematic viscosity quantifies the inherent reluctance of a fluid to flow in response to gravitational forces. Viscosity is calculated by measuring the time it takes for a set volume of fluid to flow a specified distance by gravity through a capillary inside a calibrated viscometer at a strictly reg...

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Main Authors: Md․Saidul Islam, Md․Sadequl Azam, Mahedi Hassan, Atish Bhathacharjee, Shahin Aziz
Format: Article
Language:English
Published: Elsevier 2025-03-01
Series:Results in Engineering
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Online Access:http://www.sciencedirect.com/science/article/pii/S2590123025001860
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author Md․Saidul Islam
Md․Sadequl Azam
Mahedi Hassan
Atish Bhathacharjee
Shahin Aziz
author_facet Md․Saidul Islam
Md․Sadequl Azam
Mahedi Hassan
Atish Bhathacharjee
Shahin Aziz
author_sort Md․Saidul Islam
collection DOAJ
description Kinematic viscosity quantifies the inherent reluctance of a fluid to flow in response to gravitational forces. Viscosity is calculated by measuring the time it takes for a set volume of fluid to flow a specified distance by gravity through a capillary inside a calibrated viscometer at a strictly regulated temperature. Numerous researches have been done regarding this but the discussion about precision is absent. This study demonstrates the development and advancement of a digital thermostat control system for viscosity measurement incorporating pulse width modulation (PWM) technique in the heating module and rotator to achieve higher precise control. It comprises sensors and microcontroller-based technology to automatically regulate the temperature of bath liquid in a precise way. In this investigation, water and silicon oil both are used as heated fluids; nevertheless, the device is capable of functioning with any other alternative liquid as well. Based on the experimental findings, the tolerance of the bath temperature for water is 0.62 %, while for silicon oil it is 0.32 %. This article also discusses a comparison between using and not using PWM to showcase the influence on the precision of the thermo-control system of the bath. Incorporating PWM, excels in power management, increases accuracy, and customizable options.
format Article
id doaj-art-75f193cf6a9d49239d0aacbaae9bca80
institution Kabale University
issn 2590-1230
language English
publishDate 2025-03-01
publisher Elsevier
record_format Article
series Results in Engineering
spelling doaj-art-75f193cf6a9d49239d0aacbaae9bca802025-01-26T05:04:47ZengElsevierResults in Engineering2590-12302025-03-0125104098Design, development, and performance study of a PWM based thermostat system for viscosity measurementMd․Saidul Islam0Md․Sadequl Azam1Mahedi Hassan2Atish Bhathacharjee3Shahin Aziz4Corresponding author at: Institute of Energy Research and Development (IERD), Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhaka, Bangladesh.; Institute of Energy Research and Development (IERD), Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhaka, BangladeshInstitute of Energy Research and Development (IERD), Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhaka, BangladeshInstitute of Energy Research and Development (IERD), Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhaka, BangladeshInstitute of Energy Research and Development (IERD), Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhaka, BangladeshInstitute of Energy Research and Development (IERD), Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhaka, BangladeshKinematic viscosity quantifies the inherent reluctance of a fluid to flow in response to gravitational forces. Viscosity is calculated by measuring the time it takes for a set volume of fluid to flow a specified distance by gravity through a capillary inside a calibrated viscometer at a strictly regulated temperature. Numerous researches have been done regarding this but the discussion about precision is absent. This study demonstrates the development and advancement of a digital thermostat control system for viscosity measurement incorporating pulse width modulation (PWM) technique in the heating module and rotator to achieve higher precise control. It comprises sensors and microcontroller-based technology to automatically regulate the temperature of bath liquid in a precise way. In this investigation, water and silicon oil both are used as heated fluids; nevertheless, the device is capable of functioning with any other alternative liquid as well. Based on the experimental findings, the tolerance of the bath temperature for water is 0.62 %, while for silicon oil it is 0.32 %. This article also discusses a comparison between using and not using PWM to showcase the influence on the precision of the thermo-control system of the bath. Incorporating PWM, excels in power management, increases accuracy, and customizable options.http://www.sciencedirect.com/science/article/pii/S2590123025001860Thermostat bathPulse width modulationViscosityMicrocontroller
spellingShingle Md․Saidul Islam
Md․Sadequl Azam
Mahedi Hassan
Atish Bhathacharjee
Shahin Aziz
Design, development, and performance study of a PWM based thermostat system for viscosity measurement
Results in Engineering
Thermostat bath
Pulse width modulation
Viscosity
Microcontroller
title Design, development, and performance study of a PWM based thermostat system for viscosity measurement
title_full Design, development, and performance study of a PWM based thermostat system for viscosity measurement
title_fullStr Design, development, and performance study of a PWM based thermostat system for viscosity measurement
title_full_unstemmed Design, development, and performance study of a PWM based thermostat system for viscosity measurement
title_short Design, development, and performance study of a PWM based thermostat system for viscosity measurement
title_sort design development and performance study of a pwm based thermostat system for viscosity measurement
topic Thermostat bath
Pulse width modulation
Viscosity
Microcontroller
url http://www.sciencedirect.com/science/article/pii/S2590123025001860
work_keys_str_mv AT mdsaidulislam designdevelopmentandperformancestudyofapwmbasedthermostatsystemforviscositymeasurement
AT mdsadequlazam designdevelopmentandperformancestudyofapwmbasedthermostatsystemforviscositymeasurement
AT mahedihassan designdevelopmentandperformancestudyofapwmbasedthermostatsystemforviscositymeasurement
AT atishbhathacharjee designdevelopmentandperformancestudyofapwmbasedthermostatsystemforviscositymeasurement
AT shahinaziz designdevelopmentandperformancestudyofapwmbasedthermostatsystemforviscositymeasurement