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System having pitch-adjusted rotational speed measurement

  • US 9,752,299 B2
  • Filed: 04/30/2015
  • Issued: 09/05/2017
  • Est. Priority Date: 04/30/2015
  • Status: Active Grant
First Claim
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1. A speed measurement system for a machine having a component rotationally mounted within a housing, the speed measurement system comprising:

  • a first sensing element configured to be mounted to the housing adjacent the component and to generate a first signal indicative of a rotational velocity of the component,wherein the first sensing element includes a magnetic element, andwherein the magnetic element is configured to interact with a wheel attached to the component;

    a second sensing element configured to be mounted to the housing and to generate a second signal indicative of a rotational rate of the housing; and

    a controller in communication with the first sensing element and the second sensing element, the controller being configured to determine a rotational speed of the component relative to an offboard reference based on the first signal and the second signal.

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