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Non-contact sensor system and method for displacement determination

  • US 9,086,301 B2
  • Filed: 05/14/2012
  • Issued: 07/21/2015
  • Est. Priority Date: 02/17/2009
  • Status: Active Grant
First Claim
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1. A non-transitory computer readable medium having stored thereon a plurality of instructions comprising:

  • instructions to generate a signal that causes a first current to flow in an electrical circuit in a first sensor element, wherein a first electromagnetic field is generated in response to the signal, and wherein the first sensor element is disposed proximate a second sensor element without physically contacting the second sensor element;

    instructions to sense a second electromagnetic field in a sensing circuit in the first sensor element, wherein the second electromagnetic field is generated in response to a second current flowing through a resonant circuit on the second sensor element,wherein the second current is generated in response to the first electromagnetic field, andwherein the second sensor element is disposed on a rotary member that is configured to be rotated about an axis Y by a shaft configured to pass through the rotary member along the axis Y at a value X; and

    instructions to determine the value X in response to the second electromagnetic field and in response to a value Z associated with the rotation of the rotary member about the axis Y.

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