Accession Number : ADD016544

Title :   Magnetomechanical Sensor Attachment Method.

Descriptive Note : Patent, Filed 25 Aug 86, patented 20 Sep 94,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Clark, Arthur E

Report Date : 25 Aug 1986

Pagination or Media Count : 4

Abstract : A method of measuring strain in material by selecting a metallic glass ribbon of the composition Fe(w)B(x)Si(y)C(z) were-in the metallic glass ribbon is essentially strain free and has easy axes of magnetization which are in the plane of the ribbon transverse (at 90 deg) to the long axis of the ribbon; bonding the metallic glass ribbon to material to be measured by means of a homogeneous viscous organic liquid having a viscosity greater than 10 (exp5) cp at 25 deg C.; allowing the viscous liquid to relax until the metallic glass ribbon is not stressed by the viscous liquid and is in a state of constant strain within it magnetostrictive dynamic range; and measuring the susceptibility of the metallic glass ribbon which is directly proportional to strain within the material being measured

Descriptors :   *MAGNETOSTRICTION, *DETECTORS, *STRAIN(MECHANICS), *STRESSES, *PATENTS, MATERIALS, MEASUREMENT, METALS, GLASS, IRON, BORON, SILICON, CARBON, BONDING, VISCOUS FLOW, LIQUIDS, ORGANIC MATERIALS

Subject Categories : Electricity and Magnetism
      Mechanics
      Laminates and Composite Materials
      Organic Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE