(under subclass 244) Subject matter wherein the apparatus to sense a magnetic field includes a thin sheet of conductive material whose thickness is small compared to a dimension of the sides of the sheet, electrical means connected at first diametrical points on the edge of the sheet to pass an electrical current through the sheet, electrical output means connected to second diametrical points on the edge of the sheet at right angles to the first diametrical points and the apparatus to indicate being connected to the electrical output means whereby the solid-state sheet when placed in a magnetic field to be measured normal to the first diametrical points will cause a voltage, consistent with the intensity of the tested magnetic field, at the second diametrical points, which voltage is sensed by the apparatus to indicate.
(1) Note. Compensation for misalignment of axis by means of potential balancing is here.
(2) Note. Hall plates may be made of germanium, bismuth, tellurium, copper, or indium antimonide.
SEE OR SEARCH THIS CLASS, SUBCLASS:
117, for measuring electricity, per se, with a Hall effect device.
127, for measuring current in a split core transformer with a Hall effect device.
207.20, for magnetic displacement measurement wherein a sensor utilizes the Hall effect.
SEE OR SEARCH CLASS
310, Electrical Generator or Motor Structure,
3, for Hall effect generators or converters.
323, Electricity: Power Supply or Regulation Systems,
368, for impedance systems including a Hall effect resistor.
327, Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems,
511, for miscellaneous circuits having Hall effect devices sensitive to external magnetic effects.
329, Demodulators, appropriate subclasses for magnetic demodulators which include Hall effect devices.
330, Amplifiers,
6, for amplifiers using the Hall effect.
332, Modulators,
172, for magnetic amplitude modulators using the Hall effect. 338, Electrical Resistors,
32, for Hall effect devices, per se.
365, Static Information Storage and Retrieval,
170, for Hall effect magnetic signal storage devices.
