US PATENT SUBCLASS 324 / 700
.~.~.~.~.~ Including corrosion or erosion

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

600  DF  IMPEDANCE, ADMITTANCE OR OTHER QUANTITIES REPRESENTATIVE OF ELECTRICAL STIMULUS/RESPONSE RELATIONSHIPS {8}
649  DF  .~ Lumped type parameters {6}
691  DF  .~.~ Using resistance or conductance measurement {12}
693  DF  .~.~.~ With object or substance characteristic determination using conductivity effects {5}
699  DF  .~.~.~.~ To determine dimension (e.g., distance or thickness) {1}
700.~.~.~.~.~ Including corrosion or erosion

DEFINITION

Classification: 324/700

Including corrosion or erosion:

(under subclass 699) Subject matter including means to evaluate the addition or loss of material, to or from a substance, due to environmental conditions.

(1) Note. This subclass covers only those corrosion evaluation devices where the impedance of a sensor is measured. For other types of corrosion evaluation, search the art listed below.

SEE OR SEARCH THIS CLASS, SUBCLASS:

71.2, for electrical measuring of erosion not limited to a resistive or conductive measurement.

SEE OR SEARCH CLASS

73, Measuring and Testing,

86, embrittlement or erosion testing.

204, Chemistry: Electrical and Wave Energy, 404, for corrosion analysis and testing.

422, Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing,

53, for corrosion testers.