Magnetic field detector and resolver having a two section housing for the detector

• US 3,133,244 A
• Filed: 09/15/1960
• Issued: 05/12/1964
• Est. Priority Date: 09/15/1960
• Status: Expired due to Term

• Current Assignee: Waclaw Wojtulewicz
• Original Assignee: Waclaw Wojtulewicz
• Inventors: WACLAW WOJTULEWICZ
• Application Number:
  US04/056,182
• Time in Patent Office: 1,335 Days
• US Class Current: 324/247
• CPC Class Codes: G01R 33/04 using the flux-gate principle

Claims

1. A MAGNETIC DETECTOR FOR MEASURING THE MAGNITUDE OF A MAGNETIC FIELD IN WHICH THE DETECTOR IS PLACED, COMPRISING IN COMBINATION, A CUBE-SHAPED BOSS WITH FLAT RECTANGULAR FACES;

CORES RETAINED BY SAID BOSS, EACH CORE INCLUDING AN ELONGATED CENTRAL CYLINDRICAL PORTION, A TAPERED INNER PORTION WHICH IS EMBEDDED IN SAID BOSS AT RIGHT ANGLES TO AND IN THE CENTER OF ONE OF SAID FACES, AND A DISCSHAPED OUTER MAGNETIC END MEMBER AXIALLY MOUNTED TWO OPPOSED FACES OF SAID BOSS DEFINING AND AXIS, ALL OF SAID CORES DEFINING THREE ORTHOGENAL AXES;

AN ELECTRIC CIRCUIT FOR FEEDING EXCITATION CURRENT TO EACH OF SAID CORES;

OUTPUT WINDINGS FOR EACH OF SAID AXES DEFINED BY SAID CORES, SAID WINDINGS FOR EACH OF SAID AXES BEING PLACED AROUND CORES EMBEDDED IN SAID OPPOSED TWO FACES AND ACROSS SAID BOSS;

A HOUSING BASE HAVING A CENTER APERTURE THEREIN FOR RETAINING THE CORES DEFINING ONE OF THE AXES AS WELL AS TWO CHANNELS AT RIGHT ANGLES TO SAID APERTURE AND TO EACH OTHER FOR ACCOMMODATING THE REMAINING CORES, A HOUSING COVER HAVING AN APERTURE AND CHANNELS CORRESPONDING TO AND ADAPTED TO MATE WITH THOSE OF SAID BASE, SAID BOSS AND CORES BEING HOUSED-BETWEEN SAID BASE AND COVER, AND RETAINING MEANS RETAINING SAID BASE AND COVER;

RESOLVER ASSEMBLIES COUPLED TO EACH OF SAID OUTPUT WINDINGS FURNISHING TRIGONOMETRIC FUNCTIONS CORRESPONDING TO THE ANGLES BETWEEN EACH OF SAID AXES AND THE MAXIMUM-MINIMUM MAGNETIC FIELD MAGNITUDE;

AND, RESOLVER MEANS CONNECTED TO THE OUTPUT OF SAID RESOLVER ASSEMBLIES RECEIVING THE TRIGONOMETRIC FUNCTION INFORMATION SUPPLIED THEREFROM SO AS TO PROVIDE THREE DIMENSIONAL INFORMATION REGARDING THE POSITION OF THE MAGNETIC DETECTOR IN A MAGNETIC FIELD.