Robust, Efficient, and Economical Magnetic Stirrer: A Device Based on Pulsed Width Modulation, Built Using Mainly Recycled Parts

Subratti, Afraz; Lalgee, Lorale J.; Jalsa, Nigel Kevin

doi:10.1021/acs.jchemed.9b00395

Cited by 6 publications

(6 citation statements)

References 20 publications

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“…Recently, the use of an available, low-cost, and user-friendly electronic board like an Arduino microcontroller has been increased greatly in the education of students 5 and the fabrication of laboratory equipment/apparatus such as an electronic calorimeter, 6 thermal conductivity detector, 7 potentiostat, 8 and magnetic stirrer. 9 Some syringe pumps have recently been reported in the literature for Raspberry(Pi) and Arduino-based syringe pumps that used three-dimensional (3D) printers and complex mechanical components (motor mount, motor shaft coupling, guide rod, screw-driven stage, and linear ball bearing) for the fabrication of the syringe pump. 10−14 In this paper, we provide instructions for building and testing a syringe pump that does not require the complex mechanical components that are used in conventional syringe pumps.…”

Section: ■ Introductionmentioning

confidence: 99%

“…Hence, a simple, low-cost, and open-source syringe pump is desirable for chemical and biochemical laboratories. Recently, the use of an available, low-cost, and user-friendly electronic board like an Arduino microcontroller has been increased greatly in the education of students and the fabrication of laboratory equipment/apparatus such as an electronic calorimeter, thermal conductivity detector, potentiostat, and magnetic stirrer …”

Section: Introductionmentioning

confidence: 99%

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Using the Recycled Parts of a Computer DVD Drive for Fabrication of a Low-Cost Arduino-Based Syringe Pump

Cheri

2021

J. Chem. Educ.

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The accurate and precise transport of the small amounts of the liquid by the syringe pump is widely used in many fields. In this paper, an Arduino-based syringe pump is fabricated using the computer DVD (digital versatile disc) drive. For the fabrication of the syringe pump, low-cost electronic components such as an Arduino microcontroller, a stepper motor, a stepper motor driver, and a display are used. The tray-loading mechanism of the computer DVD drive (close/open mechanism of the tray for inserting/removing DVD) was used for the injection process. To provide the necessary force for the precise and accurate movement of the plunger of the syringe, we replaced the DC motor of the computer DVD drive with the stepper motor and the stepper motor driver. An Arduino code was developed to control the infusion process. Depending on the syringe dimension (inner diameter and barrel length), the stepper motor (angular resolution), and the motor driver (microstepping mode), the code can be modified by using the Arduino software. The syringe pump infuses the water in the flow rates from 0.005 (mL/min) to 1 (mL/min) with a maximum of 10 μL difference between the mean measured volume and the infused volume. The fabricated syringe pump does not require the complex mechanical components that are used in conventional syringe pumps. The project provides instructions for building and testing a syringe pump and enables the students to fabricate a low-cost, open-source syringe pump using the recycled parts of the computer DVD drive for less than $30. As a result, the students will increase their hardware and software skills by completing the project.

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Section: ■ Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Using the Recycled Parts of a Computer DVD Drive for Fabrication of a Low-Cost Arduino-Based Syringe Pump

Cheri

2021

J. Chem. Educ.

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“…Magnetic stirrer is a laboratory tool used to mix or mix a solution with another so that the solution is homogeneous [13][14] [15]. The current magnetic stirrer is only equipped with a diverter speed controller using an analog control knob [16][17] [18] [19].…”

Section: Introductionmentioning

confidence: 99%

Magnetic Stirrer with Speed Advisor and Timer Based on Microcontroller

Nugraha¹,

Mahardiananta

Putra

et al. 2021

Journal of Robotics and Control

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A magnetic stirrer is a laboratory tool that is used to stir or mix a solution with another solution so that the solution is heterogeneous. Technology and science have now progressed, so in this study, a microcontroller-based magnetic stirrer was designed. This tool is designed with digital speed and time settings, with digital technology, it is hoped that the data reading error of the speed and time of mixing samples can be minimized, efficient in time, relatively easier to use, and produces a homogeneous solution. Based on the results of the analysis that has been carried out by a microcontroller-based magnetic stirrer in a solution with low viscosity from mixing water and syrup, it requires mixing time for 1 minute with low, medium, and high speeds. For a solution with a higher viscosity using water and special grade syrup, it takes 5 minutes at medium and high speeds. To mix water with salt and water with sugar takes 10 minutes at high speed.

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“…Widespread interest has recently been increasing in open-source microcontroller boards such as Arduino for sensing, data acquisition, educational purposes, and fabrication of low-cost equipment. − Moreover, the Arduino microcontroller can be used for the construction of laboratory equipment such as magnetic stirrers, thermometers, potentiostats, titrators, carbon dioxide (CO 2 ) gas sensors, pH sensors, and syringe pumps . Since the Arduino software is open-source, it is possible to customize and optimize the constructed device.…”

Section: Introductionmentioning

confidence: 99%

SeparateDuino: Design and Fabrication of a Low-Cost Arduino-Based Microcentrifuge Using the Recycled Parts of a Computer DVD Drive

Cheri

2020

J. Chem. Educ.

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The separation of suspensions and immiscible liquids by the laboratory centrifuge is widely used in such fields as chemistry, biology, biochemistry, and clinical medicine. In this paper, an Arduino-based microcentrifuge was fabricated using a computer DVD (digital versatile disc) drive. The hardware part consisted of inexpensive mechanical and electronic parts such as the recycled parts of a computer DVD drive, an Arduino microcontroller, a motor driver, a magnetic sensor (for speed measurement), and a display. The microcentrifuge provided a wide speed range of 1,000−10,000 rpm. The fabrication process is easy, and the total fabrication cost of the fabricated microcentrifuge is less than $25. Since the fabricated microcentrifuge has open-source hardware and software parts, it is appropriate for educational purposes and laboratory settings.

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Robust, Efficient, and Economical Magnetic Stirrer: A Device Based on Pulsed Width Modulation, Built Using Mainly Recycled Parts

Cited by 6 publications

References 20 publications

Using the Recycled Parts of a Computer DVD Drive for Fabrication of a Low-Cost Arduino-Based Syringe Pump

Using the Recycled Parts of a Computer DVD Drive for Fabrication of a Low-Cost Arduino-Based Syringe Pump

Magnetic Stirrer with Speed Advisor and Timer Based on Microcontroller

SeparateDuino: Design and Fabrication of a Low-Cost Arduino-Based Microcentrifuge Using the Recycled Parts of a Computer DVD Drive

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