磁差
- magnetic variation;magnetic declination;variation
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设计了使用永磁差频电动机的自动平衡头,实现了控制单元和平衡头之间控制信号和驱动能量的无接触传递。
An automatic balancing head employing permanent magnetic difference frequency motor ( PMDFM ) is designed in the paper , to realize a non contact transmission of control signal and driving energy between a control element and the balancing head .
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在SOI硅片上制造磁敏差分电路
Manufacturing new type of magnetic sensitivity difference circuit on SOI
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阐述基于SOI硅片制造新型P+-I-N+双注入磁敏差分电路的设计原理和制造工艺。
New type of P ~ + - I-N ~ + double injection magnetic sensitivity difference circuit is based on SOI , whose design principle and process are expatiated , and whose recombination region is set by anisotropic etching technology in MEMS .
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基于恒定姿态误差的磁罗差偏差补偿算法研究
Research on DCA of magnetic deviation based on constant attitude errors
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采用永磁频差电动机的自动平衡头
Automatic Balancing Head Using PM Frequency Difference Motor
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设计了使用永磁频差电动机的自动平衡头。
An automatic balancing head is introduced , in which a PM frequency difference motor is used .
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通过DCA的原理分析和证明得出:该算法对具有恒定横滚角度和俯仰角度的磁航向罗差修正均有效,经过DCA补偿的磁航向角度误差在±0.3°以内,满足飞机的航向标定要求。
The introduction and the analysis of DCA theory indicate that DCA is very useful for compensation with both constant pitch and roll angles , and the DCA modified error of magnetic heading is restricted within ± 0.3 ° which can satisfy the heading calibration requirement of the plane .
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椭圆拟合方法在磁罗盘罗差校准中的应用
Application of ellipse fitting method to calibration of magnetic compass deviation
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为了快速准确的找到电力电缆故障所发生的位置,研究了声磁传播时间差法测寻电力电缆故障点。
In order to locate power cable fault fast and accurately , the acoustic propagation time measurement was developed to detect cable fault .
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基于GPS辅助以实现捷联式数字磁罗经自动消差的研究
Auto Error-compensation for Digital Magnetic Compass with GPS
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磁罗盘的罗差分析与验证
Magnetic Deviation Analysis and Verification for Magnetic Compass
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含非线性磁介质中积分差分离散的截断误差热电子晶体管的截止频率
The analysis of the cutoff errors in non - linear magnetic medium integal-differential discreteness
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海洋重磁资料的平差处理是海洋重磁资料处理过程中必不可少的环节之一。
Adjustment processing is one of indispensable procedures ofr marine gravity and geomagnetic data processing .
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椭圆拟合在某新型磁定向系统罗差补偿中的应用研究
Application Research on Ellipse Fitting in Deviation Compensation for a New Design of Magnetic Direction Finding System
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磁光盘非平衡差分信道信噪比模型的研究
An Analysis for the Signal to Noise Ratio in the Unbalanced Differential Data Channel for Magneto Optical Disks
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实验测试硅磁敏三极管差分电路的集电极电流相对磁灵敏度达到了131%/T。
It reaches 131 % T when the relative sensitivity coefficient of the collector current of silicon magnetic-sensitive transistor differential circuit is measured in experiment .