Study of properties of Light Emission Diode (LED) for the determination of the Planck constant in a automated device with Arduino platform aid
Abstract In the present article, the experimental method of determination of Planck's constant, one of the fundamental physical constants, is presented by studying the quantum and wave properties of the light emitting diode (LED), in an automated experimental model which contains an electronic circuit connected to a computer using the USB protocol with the help of the Arduino platform. LEDs have found a variety of applications, for example: in home, public, in-house lighting, TV monitors, computers, to read CD and DVD discs in computer units and game console units, or to transmit signals from remote controls to electronic equipment. LED is a vital link between electronics and photonics: LED-based semiconductor lasers send modulated optical signals through fiber optics, catering to the ever-increasing demand for broadband and Internet telecommunication. The automation of measurements and data processing of Physics experiments allows students to deepen their knowledge of methods and techniques of the experiment, to study scientific research apparatus, to master different experimental research methods, to master mathematical methods and graphs of the results obtained, and also the evaluation of the measurements made.