(under subclass 244) Subject matter wherein the apparatus to sense the magnetic field includes several magnetic sensors positioned angularly with respect to each other so that an axis of another sensor will intersect the other axis and the apparatus to indicate is connected to the several sensors to note the combined sensing of the tested magnetic field.
SEE OR SEARCH THIS CLASS, SUBCLASS:
227, for plural magnetic tests each having a magnetic field sensor.
228, for magnetic tests to subject material to a magnetic field.
242, particularly for material flaw testing apparatus using plural magnetic coil sensors.
243, for material tests using plural magnetic coil sensors to examine material.
SEE OR SEARCH CLASS
33, Geometrical Instruments, 300, for indicator of direction of force traversing material media apparatus including direction or inclination instruments, gyromagnetic compasses and magnetic field responsive instruments.
340, Communications: Electrical,
870.33, for continuously variable indicating apparatus having indication transmitters of the magnetic flux sensor type combined with circuitry connected to the transmitters, and subclass 345 for code transmitters which include magnetic flux sensing devices, per se.
