spin rate

The Study on Projectile Spin Rate Measurement for Small Arms

轻武器弹丸转速测试技术研究

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In the paper, a dynamic coupled model of the flight motion and the flexible bending motion for a finned missiles with low spin rate is created and the general equations of motion is developed.

建立了低速旋转的尾翼式弹箭飞行运动和柔性弯曲变形耦合的动力学模型和一般运动方程组；

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Methods The number of rosette scan petals required for the instantaneous FOV to cover the total FOV was calculated and the effects of the gyro rotational frequency, motor rotational frequency and missile spin rate variations on rosette scan patterns and frame frequencies were predicted.

方法通过研究陀螺、空心电机转动频率变化及弹体自旋条件下瞬时视场覆盖全视场所需的玫瑰花瓣数，得出上述三者对玫瑰扫描空间图案和不漏扫帧频的影响；

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The spectrum analysis method is used to process Doppler signal. By using the classic spectrum estimation theory and data smoothing technique, the spin rate of projectile can be extracted from Doppler signal.

通过对雷达多普勒信号的频域分析，采用经典谱估计理论和数据平滑技术能够从多普勒信号中提取弹丸旋转速度。

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Qualitative analysis of multi-state non-coherent fault-tree for Spin Satellite rate control system

自旋卫星转速控制系统的多状态非单调关联故障树定性分析

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Also, spin rate coupling with structural damping ratio and other structural parameters have a significant influence in aeroelastic dynamic instability for spinning rocket.

旋转速率与结构阻尼及其他结构参数对气动弹性动态稳定性影响也比较显著。

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Emphasis on technology in teaching and made the ball spin rate of forearm muscle strength training combined.

重视发旋转球技术教学与前臂肌肉的速度力量训练相结合。

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The methods of inlet channel of laval nozzle and smaller area of vent hole have been put forward to limit the spin rate of turbine generator.

提出选用拉伐尔管式进气道、和较小的排气孔面积的方法来限制涡轮发电机的转速。

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Measurement of the nuclear spin relaxation rate of the laser-polarized~ ( 129) xe gas

激光极化~（129）Xe核自旋弛豫率的测量

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Photograph measure projectile spin rate

摄影法测弹丸自旋速率

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Results and Conclusion Rosette scan infrared seeker could be applied to spinning missiles by adding an on board sensor for body spin rate measurement and feedback control of the gyro and motor rotational frequencies.

结果与结论在弹上增加自旋频率测量装置并对陀螺及空心电机转动频率有负反馈稳速控制的条件下，红外玫瑰扫描导引头可以应用于自旋弹；

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