Development of an educational low-cost teslameter by using Arduino and Smartphone application

Ouariach, Abdelaziz; Hadi, Mohamed El; Moussaouy, A. El; Hachmi, A; Magrez, Hamid; Bria, Driss

doi:10.1088/1361-6552/ab78dd

Cited by 11 publications

(7 citation statements)

References 4 publications

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“…The Vcc and Gnd pins of the sensor must be connected to the 5 V and GND pins of the Arduino board, respectively, while the Out pin of the sensor must be connected to the Arduino analog pin A0, such as shown in figure 1. An Arduino code like that shown in the supplementary data, which is based on a basic teslameter [3][4][5], is used to collect the experimental data. The Arduino board will repeatedly gather the measurement of the magnetic flux density every second.…”

Section: Arduino Programming Codementioning

confidence: 99%

An Arduino-based magnetic polarity detector and field intensity display

Moya,

Macias

2024

Phys. Educ.

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We have designed a simple Arduino-based device, which runs as magnetic polarity detector and field intensity display. It uses an analog Hall sensor together with the Arduino electronic board. The sign of the magnetic flux density allows us to identify the pole of a magnet or electromagnet, while the absolute value allows us to build an intensity display. This device allows us to visualize, among other topics, the basic functional dependences included into the Biot–Savart law, and particularly the changes in magnetic flux density with distance and current for a current-carrying coil or electromagnet.

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Section: Arduino Programming Codementioning

confidence: 99%

An Arduino-based magnetic polarity detector and field intensity display

Moya,

Macias

2024

Phys. Educ.

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“…Smartphones can also be developed as low-cost measurement or sensing systems suitable for conducting experiments owing to their high-performance microprocessors and various sensors inside them [13], such as highresolution cameras, microphones, accelerometers, gyroscopes, magnetometers, GPS, flashlights, and loudspeakers [20]. Many teachers use smartphone applications (APP) to conduct experiments to assist teaching [16], such as vibration experiments [17], physics experiments [17,19,30], magnetic field measurements [23], signal and system laboratories [18], and Fourier analysis [24,26]. Some teachers even developed interactive APPs suitable for their own courses to assist teaching and improve learning outcomes [9,10].…”

Section: Introductionmentioning

confidence: 99%

Teaching Fourier series with tone experiments based on smartphone applications

Wang

2023

Comp Applic In Engineering

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This study proposes a tone experiment using multiple smartphones or tablets to assist Fourier series teaching combined with a pedagogical strategy of the Visible Thinking framework. Fourier analysis is widely applied in many fields; therefore, it is an important subject in many professional courses of colleges, especially in engineering. While Fourier analysis is the core theoretical foundation of various experimental techniques, undergraduate courses often teach Fourier analysis from a mathematical perspective, leaving students with little intuition about how Fourier analysis works. The proposed tone experiment requires teamwork for students to manipulate smartphones to synthesize harmonic tones to simulate a periodic wave so that students can intuitively understand the physical meaning of the Fourier series formula. In addition, we conducted a pedagogical study on this course to evaluate the effects. The proposed method successfully improved the learning outcomes of beginner students and reduced the anxiety associated with learning Fourier analysis. Compared with the class that did not use the proposed tone experiment, the quiz scores improved by an average of 3.77 points. The students gave positive feedback and comments on the proposed experiments and teaching methods.

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“…It frees the student from the part of the measurement tasks and gives them more time for scientific reflection. Electricity and magnetism are usually the main subjects in physics classes in college and high school [4]. The evolution of electrical systems and the study of the RC circuit is one of the essential parts in the second year baccalaureate in secondary programs.…”

Section: Introductionmentioning

confidence: 99%

RC time constant measurement using an INA219 sensor: creating an alternative, flexible, low-cost configuration that provides benefits for students and schools

et al. 2021

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In this work, we have developed an alternative device composed by an Arduino board and an INA219 sensor to experimentally obtain the mathematical formulas describing the charge and discharge of the capacitor for educational proposes. We have obtained excellent agreement between theoretical prediction and experimental measurements. The INA219 DC sensor can measure direct current up to 26 V/3.2 A with a maximum error accuracy of 1%. The device makes it possible to follow the temporal evolution of the voltage and the current at a capacitor’s terminals. This platform can provide an alternative way for educational use compared to the expensive laboratory equipment (oscilloscope, voltmeter, generator). Indeed, we think that the presented device can play a dominant role in teaching and learning electricity courses in secondary schools due to its low cost, small size, reliability in measurements and good level of accuracy.

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Development of an educational low-cost teslameter by using Arduino and Smartphone application

Cited by 11 publications

References 4 publications

An Arduino-based magnetic polarity detector and field intensity display

An Arduino-based magnetic polarity detector and field intensity display

Teaching Fourier series with tone experiments based on smartphone applications

RC time constant measurement using an INA219 sensor: creating an alternative, flexible, low-cost configuration that provides benefits for students and schools

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