Measuring method for electromagnetic field intensity and apparatus therefor, measuring method for electromagnetic field intensity distribution and apparatus therefor, measuring method for current and voltage distributions and apparatus therefor

A measuring apparatus for the electric field intensity and the magnetic field intensity of an electromagnetic field, comprising:

• a conductor adapted to be within and responsive to the electromagnetic field, said conductor including a measuring conductor arranged in a measuring position;
• a reference signal conductor for detecting a reference signal:
• and a measuring arrangement for simultaneously measuring (a) a plurality of output currents adapted to be derived by the conductor in different directions relative to the electromagnetic field, and (b) the reference signal detected by the reference signal conductor, the simultaneous measurements being of the magnitude of each output current and the phase difference between each output current and the reference signal;
• a calculating arrangement for (a) calculating, on the basis of the measured magnitudes of the plurality of output currents and the phase differences, an electric field component current generated in the conductor by an electric field contained in each output current and a magnetic field component current generated in the conductor by a magnetic field, and (b) calculating, on the basis of the calculated magnitudes of the electric field component current and the magnetic field component current, the electric field intensity and the magnetic field intensity of the electromagnetic field.