The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 30, 1996
Filed:
Apr. 28, 1995
Kevin G Woolsey, Snohomish, WA (US);
Eldec Corporation, Lynnwood, WA (US);
Abstract
Disclosed is a method of designing a position sensor having a plurality of coils so that the total impedance of the sensor varies according to a desired impedance function. The method includes the steps of modelling the position sensor on a computer using a finite element analysis program to determine the vector potential and current density within the sensor due to a known current flowing in each of the coils. A set of matrix equations is then developed that relates vector potential, the current density and the number of turns, N.sub.i, in each coil to a point on the desired impedance function. The set of matrix equations is then optimized to determine the number of turns, N.sub.i, that each coil should contain, so that the total impedance of the sensor varies according to the desired impedance function.