METHOD FOR MEASURING ELECTROMAGNETIC FIELD, ELECTROMAGNETIC FIELD MEASUREMENT DEVICE, AND PHASE IMAGING DEVICE

摘要

An electromagnetic field measurement device (10) is provided with a first probe (21) and a second probe (22) disposed in a space in order to measure an electrical field, a reference signal generator (31) for generating a reference signal, a first multiplier (32) for multiplying the reference signal by a signal obtained by the first probe (21), a second multiplier (34) for multiplying the signal obtained by the second probe (22) by the signal outputted from the first multiplier (32), and a synchronous detector (35) for extracting a signal component that is synchronous with the reference signal from the signal outputted from the second multiplier (34).