| 摘要 |
An apparatus for evaluating dielectrically-anisotropic materials comprising a plurality of microwave transmitters with differing planes of polarization, a nd a plurality of microwave receivers with differing planes of polarization, wherein each transmitter includes a means of modulating the transmitted microwave beam, the transmitters and receivers arranged, relative to a workpiece to be measured, so as to cooperate in communication therebetween, and wherein connected to each receiver is a means to identify the received amplitude and phase of a component of the transmitted microwave beam, and wherein connected to each receiver is a means of analyzing the received signals to identify the principal axes, attenuations and phase shifts of the received microwave beam.
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