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Vol. 116, Issue 5, May 2010, pp. 83-88
Approximations in Calculating Stray Capacitance of Printed Spiral Inductors
Department of Electrical and Computer Engineering, Louisiana State University,
Baton Rouge, LA 70803-5901, USA
Tel.: (225) 578 8961, fax: (225) 578 5200
E-mail: cwoods@lsu.edu
Received: 11 March 2010 /Accepted: 24 May 2010 /Published: 31 May 2010
Abstract: Jia, Heuer, Hillmann, and Meyendorf recently reported some simulations of the stray capacitance of two-dimensional spiral coils of the kind often used in eddy-current sensors. In this Letter, some amendments to the analysis are suggested, together with some approximations that permit more efficient computation.
Keywords: Eddy current sensor, Matrix methods, Sparse matrix, Spiral coil, Stray capacitance
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