US PATENT SUBCLASS 73 / 779
.~.~.~ Magnetic or inductive

Current as of: June, 1999
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73 /   HD   MEASURING AND TESTING

760  DF  SPECIMEN STRESS OR STRAIN, OR TESTING BY STRESS OR STRAIN APPLICATION {12}
763  DF  .~ Specified electrical sensor or system {6}
774  DF  .~.~ Specified sensor structure {5}
779.~.~.~ Magnetic or inductive

DEFINITION

Classification: 73/779

Magnetic or inductive:

(under subclass 774) Subject matter wherein deformation or stress in the specimen is mechanically coupled to a sensor which causes a variation in the strength of magnetic flux intercepted thereby or a change in reluctance of a magnetic circuit including the sensor.

SEE OR SEARCH CLASS

324, Electricity: Measuring and Testing,

209, for stress measurement by a magnetic field in which a specimen directly interacts with the magnetic field.