Apparatus and method for in-field magnetic measurements

Details Apparatus and method for in-field magnetic measurements Apparatus and method for in-field magnetic measurements

2011-08-09

2011-08-09

Aurora, Reena (Department: 2858)

Electricity: measuring and testing

Magnetic

Calibration

C324S252000, C324S260000

Reexamination Certificate

active

07994773

ABSTRACT:
A magnetic field verifier apparatus includes a magnetic field detection element configured to produce a voltage signal in response to an applied magnetic field wherein the voltage signal corresponds to the strength of the applied magnetic field. A current source coupled to the magnetic field detection element provides a stimulating current for the magnetic field detection element that builds in a ramp-like progression. A microcontroller is in communication with the voltage signal wherein the microcontroller is configured to detect and control the ramping time of the magnetic field detection element and to sense after the ramping time the voltage signal from the magnetic field detection element. The magnetic field verifier apparatus is configurable to sense particular field strengths at various frequencies and store the readings to provide the user with a reliable verification that a particular magnetic field strength has been produced in a particular environment.

REFERENCES:
patent: 7068030 (2006-06-01), Hintz et al.
patent: 7075793 (2006-07-01), Le et al.
patent: 2000187065 (2000-07-01), None
patent: 2002004742 (2002-01-01), None
patent: 2002-286824 (2002-10-01), None
patent: 20070093422 (2007-09-01), None
patent: PCT/US2008/083109 (2009-06-01), None

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