Method and system of spectroscopic measurement of magnetic fields
AssigneeRaytheon Company
InventorKristin A. Blais
Life of this patent
Estimating the term…
Abstract
There is disclosed a method and apparatus for spectroscopically sensing a man-made, terrestrial or atmospheric magnetic field emanating from an object that includes receiving a radiance emission from an object and dispersing the radiance emission into parts of the electromagnetic spectrum. The method also includes detecting a part of the electromagnetic spectrum identified with a selected gas and measuring the magnetic field from a part of the electromagnetic spectrum based on spectral spreading of a spectral line.
Claims28
A method for spectroscopically sensing a man-made, terrestrial or atmospheric magnetic field emanating from an object, comprising:
- selecting a gas that will allow detection of radiance emission associated with a magnetic field emanating from an object;
- receiving the radiance emission from the object;
- dispersing the radiance emission into parts of the electromagnetic spectrum;
- detecting a part of the electromagnetic spectrum identified with the selected gas;
- and
- measuring the magnetic field from a part of the electromagnetic spectrum based on spectral spreading of a spectral line.
A system for spectroscopically sensing a man-made, terrestrial or atmospheric magnetic field emanating from an object, comprising:
- a front aperture configured to receive a radiance emission from an object;
- a dispersive element coupled to the front aperture, the dispersive element configured to disperse the radiance emission into parts of the electromagnetic spectrum;
- a detector coupled to the dispersive element, the detector configured to detect a part of the electromagnetic spectrum identified with a selected gas;
- and
- a digital signal processor coupled to the detector, the digital signal processor configured to measure the magnetic field from a part of the electromagnetic spectrum based on spectral spreading of a spectral line.
A method for spectroscopically sensing a man-made, terrestrial or atmospheric magnetic field emanating from an object, comprising:
- selecting a gas that will allow detection of radiance emission associated with a magnetic field emanating from an object;
- receiving a radiance emission from an object;
- polarizing the received radiance emission;
- detecting a part of the electromagnetic spectrum identified with a selected gas from the polarized radiance emission;
- measuring the polarized radiance emission as a function of frequency;
- and
- calculating the magnetic field from the polarization measurements.
A system for spectroscopically sensing a man-made, terrestrial or atmospheric magnetic field emanating from an object, comprising:
- a front aperture configured to receive a radiance emission from an object;
- a polarization mechanism coupled to the front aperture, the polarization mechanism configured to polarize the received radiance emission;
- a detector coupled to the polarization mechanism, the detector configured to detect a part of the electromagnetic spectrum identified with a selected gas from the polarized radiance emission;
- and
- a digital signal processor coupled to the detector, the processor configured to measure the polarized radiance emission as a function of frequency and calculate the magnetic field from the polarization measurements.
Dependencies are inferred from the claim text.