TY  - BOOK
AU  - Michael P. McCaughey
TI  -  Magnetic Levitation for the Classroom and Laboratory : (Journal Article)
T2  -  American Association of Physics Teachers ,American Institute of Physics, Volume 61, Issue 6
SN  - 0031-921X
U1  - 530.071 
PY  - 2023///
CY  - Washington , DC
PB  -   American Association of Physics Teachers
KW  - Light emitting diodes, Transistors, Circuit theorems,
KW  - Control equipment, Harmonic oscillator,
KW  - Computer programming, Magnetic levitation devices,
KW  - Resistors, Magnetic materials, Educator
N1  - ***______{For Hard Copy, Please visit Library.}________***
N2  - 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.



UR  - https://doi.org/10.1119/5.0018830
ER  -