US PATENT SUBCLASS 324 / 236
.~.~.~ Oscillator type

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

200  DF  MAGNETIC {24}
228  DF  .~ With means to create magnetic field to test material {5}
234  DF  .~.~ Electrically energized nonforce type sensor {3}
236.~.~.~ Oscillator type {1}
237  DF  .~.~.~.~> Material flaw testing

DEFINITION

Classification: 324/236

Oscillator type:

(under subclass 234) Subject matter wherein the sensor is part of a frequency generator whereby the material-modified magnetic field is sensed by the sensor to control the frequency or the amplitude of the electrical wave generated by the frequency generator.

SEE OR SEARCH THIS CLASS, SUBCLASS:

234, for sensing material-modified magnetic fields by self-inductive type sensors.

SEE OR SEARCH CLASS

331, Oscillators,

65, for oscillators with a device responsive to an external physical condition. See subclass 64 of Class 331 for the line between Classes 331 and 324.