HIGH-FREQUENCY COMPLEX PERMITTIVITY MEASURING APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide a high-frequency complex permittivity measuring apparatus capable of measuring even high power.SOLUTION: A complex permittivity measuring apparatus that measures complex permittivity by measuring complex voltage of a sample intervening between two parallel-flat-plate-like high-frequency transmission paths comprises: a first high-frequency transmission path that is connected to a high-frequency power generator; and a second high-frequency transmission path that is arranged in a form of parallel flat plate to the first high-frequency transmission path. The first high-frequency transmission path comprises: a load-resistor of which a terminal is grounded in conformity to the high-frequency transmission path; a first electrode that is connected to a complex voltage measuring instrument from the terminal through at least one attenuating resistor; and a second electrode that is connected to the complex voltage measuring instrument from a base end of the high-frequency transmission path through at least one attenuating resistor. The second high-frequency transmission path includes third and fourth electrodes that are arranged at two places having appropriate intervals in a longitudinal direction of the transmission path and are respectively connected to the complex voltage measuring instrument through at least one attenuating resistor.SELECTED DRAWING: Figure 1