@article {ahn2000error,
	title = {Error analysis of the cylindrical capacitive sensor for active magnetic bearing spindles},
	journal = {Journal of dynamic systems, measurement, and control},
	volume = {122},
	number = {1},
	year = {2000},
	pages = {102{\textendash}107},
	publisher = {American Society of Mechanical Engineers},
	author = {Ahn, Hyeong-Joon and Jeon, Soo and Han, Dong-Chul}
}
