Electromagnetic damper
An electromagnetic damper and damper technology, which is applied in the directions of instruments, navigation, surveying and navigation, etc., can solve the problems of extended north-seeking time of gyroscopes, limitation of gyroscope start-stop times, jitter, etc., so as to shorten the north-seeking time and reduce the swing Too large to speed up the north-seeking effect
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Embodiment 1
[0029] An electromagnetic damper includes a damper stator 4 , a damper rotor 1 and a magnetic shield 3 . The damper rotor is installed on the hanging wire transition axis 2 at the bottom of the gyro sensitive device, and its geometric center coincides with the hanging wire transition axis. The damper stator 4 is arranged coaxially with the damper rotor 1 and is located below the damper rotor 1 , and the damper stator 4 is fixedly connected with the housing of the gyro sensitive device. The layout of the stator and rotor structure of the damper is radially centered up and down, and there is a gap between the stator and rotor of the damper, and the gap is set as h. In order to prevent external magnetic field interference, a magnetic shield is provided outside the damper stator 4 and the damper rotor 1 .
[0030] Such as figure 2 As shown, the damper stator is a disc with eight stator cores 6 with coils, and the eight stator cores 6 are evenly distributed on the stator magneti...
Embodiment 2
[0037] Its working principle, structure and figure 1 The structure is consistent. It's just different in layout.
[0038] Such as Figure 4As shown, an electromagnetic damper includes a damper stator 14 , a damper rotor 12 and a magnetic shield 3 . The damper rotor 12 is installed on the hanging wire transition shaft 2 at the bottom of the gyro sensitive device, and its geometric center coincides with the hanging wire transition shaft 2 . The damper stator 14 is arranged coaxially with the damper rotor 12 and is located outside the damper rotor 12 , and the damper stator 14 is fixedly connected with the casing of the gyro sensitive device. The layout of the stator and rotor structure of the damper is radially centered up and down, and there is a gap h between the stator and rotor of the damper. In order to prevent interference from an external magnetic field, a magnetic shield is provided outside the damper stator 14 and the damper rotor 12 .
[0039] The damper rotor 12 ...
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