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Spin sensor for low spin munitions

  • US 8,113,118 B2
  • Filed: 11/22/2004
  • Issued: 02/14/2012
  • Est. Priority Date: 11/22/2004
  • Status: Active Grant
First Claim
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1. A spin sensor, comprising:

  • a fuze housing;

    a sense weight for providing an inertial mass; and

    a rotating induction device comprising;

    a first element affixed to the fuze housing via attachments extending between the fuze housing and the first element;

    a second element affixed to the sense weight via a shaft, the second element inductively coupled and rotationally coupled to the first element with the second element being disposed entirely within the first element, wherein the first element and the fuze housing are configured to rotate with respect to the second element and the sense weight; and

    an electrical connection configured to convey a signal developed in response to rotation of the fuze housing with respect to the sense weight;

    wherein the sense weight is configured such that the inertial mass provides an angular inertial force impeding angular acceleration of the second element when the fuze housing rotates.

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