Open AccessElectrical resistance meter in physics laboratory for engineers
Author(s) -
Natawee Chaijum
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1719/1/012096
Subject(s) - metre , electrical resistance and conductance , electrical engineering , electricity meter , multimeter , electrical network , electricity , usable , electric power , engineering , voltage , computer science , power (physics) , physics , quantum mechanics , world wide web , astronomy
Electrical resistance meter is the key tool in physics laboratory such as electricity meter experiment or DC power band experiment. The aim of this research is to design and develop electrical resistance meter for using in physics laboratory and to find the efficiency of the electrical resistance meter that has been created. The sample are students of Department of Electromechanic Manufacturing Engineering, Bansomdejchaopraya Rajabhat University. The Arduino microcontroller board is used for controlling the electrical resistance meter and finding the electrical resistance meter values, we use the principle of voltage division for the calculation with 24 resistance values. It is explored that the electrical resistance meter can actually be usable with high accuracy, which divided into 3 parts: 1) the percentage difference and the display result of the electrical resistance meter does not exceed 2 percent when compared with the Fluke 115 multimeter, 2) the evaluation by experts found that suitability of the electrical resistant meter has the average score of 3.96 which is at high level and 3) the satisfaction evaluation from the students of the electrical resistance meter has the average score of 4.01 which was also at high level.