01779nam a22002537a 4500 20231120112108.0 231106b ||||| |||| 00| 0 eng d 0031-921X RIEBPL Library 530.071 Michael P. McCaughey Magnetic Levitation for the Classroom and Laboratory (Journal Article) Washington , DC American Association of Physics Teachers September 2023 525–527 p. American Association of Physics Teachers ,American Institute of Physics, Volume 61, Issue 6 ***______{For Hard Copy, Please visit Library.}________*** Abstract- An object floating in midair underneath an electromagnet is intriguing and mysterious. Students love it, though anyone who has worked with this system soon realizes that the system is only stable over a limited region of space. But why is the system stable in the first place? This paper presents an investigation of the instability of magnetically suspended systems beginning with the simple, and going deeper, leading finally to a computer-controlled solution. The analysis is suitable for use in a college-level introductory physics course in that it relates to the study of damped simple harmonic oscillators. I describe construction of an Arduino-based magnetic levitation apparatus, programs to operate it, and a new procedure for deriving the tuning constants. Light emitting diodes, Transistors, Circuit theorems, Control equipment, Harmonic oscillator, Computer programming, Magnetic levitation devices, Resistors, Magnetic materials, Educator https://doi.org/10.1119/5.0018830 PER 0 0 0 0 RIEBPL RIEBPL 2023-11-20 0 530.071 2023-11-20 00:00:00 2023-11-20 PER 44953 44952