Waveguide measurement

特許 権利維持 [PROBLEMS] To accurately measure a standing wave as an index to identify the waveguide length ?g in a waveguide. [MEANS FOR SOLVING PROBLEMS] By detecting temperature distribution of a conductive member constituting at least a part of a pipe wall of a waveguide in the longitudinal direction of the waveguide for propagation of an electromagnetic wave, a standing wave generated in the waveguide is measured according to the temperature distribution.