With radiant energy or nonconductive-type transmitter:
(under subclass 323) Subject matter having means for radiating electrostatic or electromagnetic energy into the earth and for measuring a circuit parameter of the radiating means.
(1) Note. The means for radiating the energy, for example, may be an oscillator search coil, and the reaction of the formation on the oscillator field, due to variable loading, may furnish the indication which is desired.
SEE OR SEARCH THIS CLASS, SUBCLASS:
327, for the measurement of oscillator circuit parameters in small object detection.
