Arduino İle Bi̇lgi̇sayar Kontrollü Serbest Düşme Deney Si̇stemi̇

Abstract

This study aims to devise a computer-aided measurement system for students taking a physics course in secondary schools and universities to use in their laboratory applications. Arduino Uno development board is used in the system structure of the system. The free fall time of steel balls of different size released from the adjustable height is measured and shown on the LCD display, also observed in the software on the host computer. The designed device has electromagnet to hold the steel ball, and LDR light sensor and laser diode to measure the time. The transfer of the results to the host computer is carried out by the Wi-Fi module. A free fall test, comprised of bodies with four different weight released from six different heights, has been performed in order to test the measurement accuracy of the test set. The time is measured in milliseconds for each free fall test. 24 different results obtained from the tests are compared with the results of the theoretical calculations. In accord with this result, there is approximately 1 millisecond difference in accuracy. In addition, the system is more advantageous in terms of multiple measurements, Wi-Fi, and price when compared to other free fall test sets.