Electricity: measuring and testing – Magnetic – Magnetic field detection devices
Reexamination Certificate
2007-02-13
2007-02-13
Lefkowitz, Edward (Department: 2862)
Electricity: measuring and testing
Magnetic
Magnetic field detection devices
C324S244000
Reexamination Certificate
active
09979291
ABSTRACT:
A method and apparatus for detecting magnetic fields in which a string (1) carries an alternating current. The displacement of the string from its unperturbated position due to a magnetic gradient across the string is detected by pick-up coils (L1,L2). The signals from the pick-up coils are demodulated using a signal derived from the alternating current to produce an output.
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“Fundamentals of Physics” by Holliday et al., Fifth Edition, 1997, p. 713.
Alix Yale & Ristas, LLP
Gravitec Instruments Limited
Lefkowitz Edward
Schindler David M.
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