ETS-Lindgren 7604 Shielded Coil Antenna - Manual (Page 17)

5.0 Theory of Operation
For the Model 7604 Magnetic Field Pickup Coil the voltage induced in the coil ei
is proportional to the area of the coil, the number of turns, the frequency, and the
average flux density within the area of the coil. Equation (1) gives this
relationship.
E QUATION (1)
For the Model 7604, the open-circuit coil-terminal induced voltage in microvolts
for a magnetic field strength B in picotesla is given in (2).
E QUATION (2)
The general equation for the conversion factor is given by (3) and (4), and
includes the effects of coil impedance and load impedance.
Theory of Operation | 17