US PATENT SUBCLASS 324 / 633
.~.~ Using resonant frequency

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


324 /   HD   ELECTRICITY: MEASURING AND TESTING

600  DF  IMPEDANCE, ADMITTANCE OR OTHER QUANTITIES REPRESENTATIVE OF ELECTRICAL STIMULUS/RESPONSE RELATIONSHIPS {8}
629  DF  .~ Distributive type parameters {6}
633.~.~ Using resonant frequency {3}
634  DF  .~.~.~> To determine water content
635  DF  .~.~.~> To determine dimension (e.g., distance or thickness)
636  DF  .~.~.~> With a resonant cavity

DEFINITION

Classification: 324/633

Using resonant frequency:

(under subclass 629) Subject matter including a circuit for measuring the frequency at which a measured substance will respond with maximum amplitude when subject to an external sinusoidal wave of a particular frequency.

SEE OR SEARCH THIS CLASS, SUBCLASS:

652, for measuring a lumped type resonant circuit parameters.

655, for using a resonant circuit in inductive measurements.

658, for using a tuned or resonant circuit in capacitive measuring circuits.

675, for using a tuned or resonant circuit in capacitive measuring circuits.

708, for using a tuned or resonant circuit in resistive or conductive measuring circuits.