US PATENT SUBCLASS 324 / 693
.~.~.~ With object or substance characteristic determination using conductivity effects

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.~.~.~ With object or substance characteristic determination using conductivity effects {5}
694  DF  .~.~.~.~> To determine water content {2}
697  DF  .~.~.~.~> For interface
698  DF  .~.~.~.~> To determine oil qualities
699  DF  .~.~.~.~> To determine dimension (e.g., distance or thickness) {1}
701  DF  .~.~.~.~> Where the object moves while under test

DEFINITION

Classification: 324/693

With object or substance characteristic determination using conductivity effects:

(under subclass 691) Subject matter including means to evaluate the properties of an object by measuring or testing its ability to conduct current.

SEE OR SEARCH THIS CLASS, SUBCLASS:

639+, for electrical means where energy is transmitted through an object to determine characteristics of the object.