Magnetism detecting system
First Claim
1. A magnetism detecting system, comprising:
- reference magnetic field means for sequentially generating reference magnetic fields along radial scanning lines defined by dividing a plane to be scanned at regular angular intervals of a desired angle with respect to an origin positioned at the common intersecting point of said scanning lines;
magnetic field detecting means associated with said reference magnetic field means for detecting the direction and magnitude of an unknown magnetic field to be detected along each of said scanning lines;
display means connected to said reference magnetic field means for developing a planar display of said plane with respect to said origin in synchronism with the scanning of each of said scanning lines; and
compare means connected to said magnetic field detecting means and said display means for applying a detected output to said display means when the unknown magnetic field to be detected and said reference magnetic field coincide with each other in direction and in magnitude to angularly display the direction and radially display the magnitude of the detected unknown magnetic field on said planar display.
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Abstract
A magnetism detecting system, in which reference magnetic fields sequentially scan many radial scanning lines obtained by dividing a plane to be detected at regular intervals of a desired angle with respect to an origin positioned at the common intersecting point of said scanning lines. At least one parametrically excited second harmonic oscillator detects the direction and magnitude of a magnetic field to be detected along each of the scanning lines. A display device is provided for scanning and displaying the plane with respect to the origin in synchronism with the scanning of each of the scanning lines. A detected output is applied to the display device when the magnetic field to be detected and the reference magnetic field coincides with each other in direction and in magnitude.
32 Citations
4 Claims
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1. A magnetism detecting system, comprising:
- reference magnetic field means for sequentially generating reference magnetic fields along radial scanning lines defined by dividing a plane to be scanned at regular angular intervals of a desired angle with respect to an origin positioned at the common intersecting point of said scanning lines;
magnetic field detecting means associated with said reference magnetic field means for detecting the direction and magnitude of an unknown magnetic field to be detected along each of said scanning lines; display means connected to said reference magnetic field means for developing a planar display of said plane with respect to said origin in synchronism with the scanning of each of said scanning lines; and compare means connected to said magnetic field detecting means and said display means for applying a detected output to said display means when the unknown magnetic field to be detected and said reference magnetic field coincide with each other in direction and in magnitude to angularly display the direction and radially display the magnitude of the detected unknown magnetic field on said planar display. - View Dependent Claims (2, 3, 4)
- reference magnetic field means for sequentially generating reference magnetic fields along radial scanning lines defined by dividing a plane to be scanned at regular angular intervals of a desired angle with respect to an origin positioned at the common intersecting point of said scanning lines;
Specification