The patent concerns novel and improved methods and apparatus to measure the angular position of a body relative to a preselected axis. The angle between a small radio frequency coil and a spatially uniform magnetic field is measured and a signal commensurate with the measured angle is employed in a computation of angular position. The apparatus employed in the angle measurement is characterized by a DC frequency response whereby an output signal is produced in the absence of motion between the coil and field. The technique and apparatus of the invention are particularly well suited for use in testing of safety devices such as automotive restraint systems, including safety belts, harnesses, air bags, and the like.

  • Supplemental Notes:
    • Supersedes PB-216 156. Government-owned invention available for licensing. Copy of patent available Commissioner of Patents, Washington, D.C. 20231 $0.50.
  • Corporate Authors:

    Department of Transportation

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Authors:
    • Horner, J L
    • Plank, G R
  • Publication Date: 1972-3-1

Media Info

  • Pagination: 6 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00136524
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: PAT-APPL-230702 Patent, PATENT-3 786 458
  • Files: TRIS, USDOT
  • Created Date: Jul 13 1976 12:00AM