| 摘要 |
PURPOSE:To enable the device to change the frequency instantaneously and remotely with a simple mechanism, by driving a synchronous motor based on electrical signals from a detecting element which is to convert the rotation to electrical signals. CONSTITUTION:A synchronous mechanism is so constituted that a synchronous screw 11 is connected to a connecting rod 9 of a cavity resonator with a screw, the synchronous screw 9 is lightly fixed with a press metal member 12 so as to be permitted to rotate, and the press metal member 12 is fixed to a part of the resonator with a screw 14 through a supporter 13. A spur gear 17 is mounted on the synchronous screw 11, and connected through other spur gear 16 to an element 15 for detecting the rotation of the synchronous screw 11. An end of the synchronous screw 11 is connected to a driving shaft of the synchronous driving motor 18, and the driving motor 18 is drived based on electrical signals from the detecting element 15 through a micro-computer. Thus the frequency can be changed without any trained skill easily in a short time. |
