Patent ID: 6486664
Filing Date: 2002-11-26
Classification: G01R,H05B

Abstract:
A magnetic field exposure sensor for use in a high frequency induction treatment operation of a member, during which operation the sensor passes beneath an induction coil in which a current flow produces a high frequency magnetic field, the sensor comprising:an enclosure; a magnetic field sensing coil for sensing the high frequency magnetic field, the sensing coil disposed in a part of the enclosure; a circuit board contained within the enclosure, an edge of the circuit board abutting the part of the enclosure in which the sensing coil is disposed, the circuit board comprising: processing circuitry further comprising: means for producing a signal proportional to the peak value of the magnetic field as sensed by the sensing coil; means for producing an overall power profile from the signal proportional to the peak value of the magnetic field, the overall power profile being the peak value of the magnetic field as the sensor passes beneath the induction coil; means for converting the signal proportional to the peak value of the magnetic field into a first digital data; means for converting the overall power profile into a second digital data; means for storing the first and second digital data in a digital storage device; and transmitting circuitry comprising means for transmitting the digital data to a remote receiver.