The carrier magnetic disturbance which make magnetic deviation of the navigation equipment and influence geomagnetic measurement precision has been a difficult problem at all times. 载体磁场对地磁测量的干扰,一直是造成导航设备罗差、影响地磁测量精度的技术难题。
Superconducting magnetic energy storage based on PID controller inhibiting power swing of wind farm under the fault disturbance 基于PID控制器的超导储能装置抑制风速和故障扰动下风电场功率波动
Secondly, this algorithm adopted the federated filter mode to reduce the impacts between acceleration and magnetic disturbance in order to improve the precision and reliability; 其次,组合算法采用联邦滤波模式降低运动加速度与磁干扰之间的相互影响,提高算法的精度和可靠性;
The scintillations may also occur in magnetic disturbance/ storm days, which mostly appear in winter and summer months. 电离层闪烁也可能发生于磁扰/暴期间,这种情形多发生于夏季和冬季期间。
As a kind of new wind tunnel balance, MSBS ( Magnetic Suspension Balance System) becomes more remarkable in aeronautical and astronautical field, which can provide experiment data without the disturbance of brackets. 磁悬挂天平作为一种能够提供无支架干扰试验数据的新型风洞天平,在航空航天领域逐渐引起关注。
Because of its sensing principle and structure, the air core coil is sensitively affected by the field magnetic disturbance and temperature. 空心线圈传感头由于其感应机理和结构的原因,容易受到外界磁场和温度变化的影响。
In consideration of an actual turbine expander, the effects of some factors, such as radial control currents, radial operating load, dynamic temperature, magnetic fields disturbance, and thermo-expansion of the rotor and bearings, on the radial position precision of the rotor are studied. 以实际涡轮膨胀机为对象,研究了径向控制电流、工作载荷、轴承及转子的温度变化、磁场干扰等因素与转子径向位置精度的关系。
Proved by the experiment, This system runs steadily and satisfies practical application's demands under the laboratory high frequency strong magnetic field disturbance, the high frequency vibration and the high temperature environment. 经试验证明,该系统在实验室的高频强磁场干扰、高频振动和高温环境下仍运行稳定可靠且满足实际应用的需求。
The intensity of magnetic storm main phase has certain effect on the intensity, development and periods of ionospheric negative phase disturbance. 磁暴主相强度的大小会对电离层负相扰动的强度、发展和持续时间产生一定的影响;
Normal and quick run ( H. D.) records of the earth's magnetic field were made at Ruili, Yunnan Province during Feb. 16, 1980, total solar eclipse. Daily variation, small disturbance and magnetic pulsation were analysed. 1980年2月16日日全食期间,在云南瑞丽进行了地磁场的正常与快速两种记录,分析了地磁日变化、小扰动和地磁脉动的变化。
On the Magnetic Levitation Control Algorithm to Resist the Track Disturbance 磁悬浮系统抗轨道扰动算法
Testing of the Electronic Magnetic Disturbance and Electronic Magnetic Sensitivity in Automobile Electronic System 汽车电系电磁干扰与电磁敏感度测试
Final-ly, methods which prevent computer monitor from the magnetic field disturbance are proposed. 提出了计算机监示器免受磁场干扰的各项措施。
Numerical calculation shows that when Bz < 0, Sq current system Will shift eastward and toward high latitude, and a magnetic disturbance of a few gammas will be observed on the earth surface. 数值计算表明,当△B2<0时,Sq电流体系的焦点向东和向高纬移动,地面磁场会观测到数伽马的变化。
Based on math model of active magnetic bearing and the theory of H_ ∞ control, the robust controller was designed. Initial response and disturbance suppression effect were studied. The relationship between control current and displacement of the rotor was analyzed. 在建立电磁轴承数学模型的基础上,设计了基于H∞控制理论的鲁棒控制器,研究起动时系统的响应、受扰情况及控制电流和转子位移之间的关系,讨论起动性能的影响因素。
Ground magnetic field disturbance caused by bubbles in the earth's plasma sheet 地球等离子体片中磁泡对地面磁场的扰动
Magnetic disturbance during 1978-1988 and the solar-terrestrial coupling 1978&1988年间磁扰的分析与日地耦合
The superiority of the method is due to no electrical and magnetic disturbance of buildings when applied to engineering geological mapping in industrical and resident area. 由于反射宇宙中子法不受工业电、磁的干扰和不对民用建筑产生破坏,因而该方法在工业和民用建筑密集区进行工程地质填图,可显示其优越性。
The mode of current input is four points in the big surface so as to efficiently decrease the magnetic field disturbance and accordingly to make the cell run more stably. 进电方式采用大面四点进电,以有效减少磁场干扰,保证电解槽生产平稳进行。
In this thesis, the method of inverse system is adopted to realize decoupling control for propulsion of the planar magnetic suspension stage of six freedom and line driving, and at the same time, the disturbance observer is used to compensate disturbances. 仿真实验结果表明,采用针对推力部分应用逆系统方法,对6自由度直线驱动磁悬浮平台推力的控制进行状态反馈解耦控制,并用干扰观测器来补偿扰动;
Some typical example of the largest magnetic storms, the largest radio burst resulting magnetic storms, the most severe short wave communication disturbance in ionosphere and magnetic storms resulted by the large solar flare with bright mass ejection and two-ribbon flares are also given. 进一步分析了21周最大磁暴、最大射电爆发引起的磁暴,最严重的电离层短波通讯干扰及有明亮物质抛射的大耀斑、双带大耀斑引起的磁暴等典型例子。
Suppression of Magnetic Field Disturbance of Computer Monitor in the Power Plant and Industry Control 电厂及工业控制计算机监视器磁场干扰的抑制
Analysis of Magnetic Disturbance for Vector Control System 矢量控制系统磁场扰动分析
Based on analysis of the geographical distribution of absolute magnetic field intensity and measurement data of the magnetic field in the south Atlantic Ocean region, this paper provides foundation for further analysis on the fluctuation of magnetic field during the disturbance period. 分析了地磁强度绝对值的地理分布规律以及平静期南大西洋磁异常区的数据变化情况,为进一步分析地磁扰动时期的变化情况打下基础。
A Study on the Correction of Diurnal Variation Magnetic Storm and Disturbance in the Magnetic Survey of the South China Sea 南海磁测中磁暴、磁扰的改正探讨
The second is to investigate the trigger mechanisms of magnetic storm, magnetospheric substorm, and magnetospheric particle storm, as well as the responses of magnetospheric space storm to the solar activities and interplanetary disturbance. 研究磁层亚暴、磁暴和磁层粒子暴的触发机制及磁层空间暴对太阳活动和行星际扰动的响应过程;
However the magnetometer is vulnerable to external magnetic field disturbance, thus it might produce adverse effect to the fusion results, besides, silicon material and structural properties of MEMS gyroscope are sensitive to temperature which causes larger drift of MEMS gyroscope. 然而在实际应用时,MEMS陀螺的硅材质和结构特性对温度比较敏感,易产生较大的漂移,此外,磁强计容易受到外界磁场干扰,从而对载体姿态信息的融合结果产生不利影响。
According to the actual magnetic levitation system, a new disturbance observer structure is constructed using the multi-feedback observation. 结合实际磁悬浮系统情况,应用多反馈量融合的观测方式构成新型干扰观测器控制结构。