Power Density Measurement

Power Density Measurement

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Widely applied methods of electromagnetic power density measurement were presented and analyzed in this chapter. The considerations have a purely theoretical character, and they are concerned with the field relationships only. The source of the measurement accuracy limitation, by way of E- or H-field measurement (method error), was demonstrated, and the magnitude of the error for different combinations of sources and measuring probes was estimated. Then, a certain accuracy improvement, as a result of simultaneous E- and H-field measurement, and a calculation of an arithmetic or geometric mean was proposed.

Chapter Contents:

  • 6.1 Power Density Measurement Methods
  • 6.2 Power Density Measurement Using the Antenna Effect
  • 6.3 Conclusions and Comments

Inspec keywords: power measurement; electric field measurement; magnetic field measurement; electromagnetic field theory

Other keywords: geometric mean; measurement accuracy limitation; method error; electromagnetic power density measurement; field relationships; arithmetic mean; E-field measurement; H-field measurement

Subjects: Electric and magnetic fields; Magnetic variables measurement; Power and energy measurement; Measurement of basic electric and magnetic variables; Steady-state electromagnetic fields; electromagnetic induction; Voltage measurement

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