| 摘要 |
PURPOSE:To offer a stabilizer with good accuracy and ease of maintenance with a simple constitution, by providing two sets of a pair of acceleration meters at different height and controlling the supporting stand so that the difference of the output of the acceleration meters is zero. CONSTITUTION:At the center 1 of ship fluctuation, a pair of acceleration meters 2, 21 for rolling detection and a pair of acceleration meters 3, 31 for pitching detection, are located at different height, respectively. The difference of acceleration is obtained from the detected signal of the rolling acceleration meters 2, 21 with an operation device 61, it is integrated twice at integrators 62, 63 to obtain the difference S of horizontal displacement. The displacement angle signal theta of antenna stand is obtained at an operation device 64 from the difference and a voltage V is fed to a correction motor 66 via a servo amplifier 65 to control the attitude of the stable stand 4. As to the pitching, it is made similarly. Thus, the acceleration of gravity is cancelled and the correction by true shaking angle of the ship can be made, and a device with ease of maintenance and good accuracy can be obtained. |
