| 摘要 |
PURPOSE:To facilitate adjusting work by comprising a device so as to be able to perform the measurement of characteristic, the rotation of an adjusting screw, and the magnetization/demagnetization of a magnetic material in a state where a circulator is placed on a table. CONSTITUTION:A magnetizer/demagnetizer 34 applies a magnetic field to the circulator 2 on the table 32 by specifying the strength and direction of the magnetic field from the outside, and performs the magnetization/demagnetization of the magnetic material 22 in the circulator 2. A screw adjuster 36 displaces by rotating the adjusting screws 24, 26, and 28 of the circulator 2 by specifying rotating speed and a rotational direction. A measuring instrument 38 for impedance characteristic and isolation characteristic is equipped with a mechanism to load/unload connectors 40a, 40b, and 40 on the input/output terminals 2a, 2b, and 2c of the circulator 2. By placing the circulator 2 on the table 32 once and setting the magnetizer/demagnetizer 34 and the adjuster 36, the measurement of characteristic and the operations of the magnetizer/demagnetizer and the screw adjuster can be automatically performed under the control of a controller 50 comprised by using a microcomputer, etc. |
