陀螺

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This paper discusses the implementation of a closedloop controlled Fiber Optic Gyroscope system using the digital sawtooth wave and square wave modulation approach.

本文讨论了采用数字锯齿波和方波调制方案的闭环光纤陀螺系统的实现。

The value of active energy is determined to be 0.82 eV and mean lifetime in practical operation at driving current of 100 mA and an ambient temperature of 298 K is over 106 h, and high reliability and long lifetime required for light source of FOG are confirmed.

计算出了器件的激活能平均值约为0.82 eV，SLD管芯在室温下的工作寿命超过106 h，可以满足光纤陀螺用光源的寿命要求。对影响SLD管芯可靠性的因素以及管芯的退化机理进行了分析，为研制高可靠性的超辐射发光二极管提供了理论基础。

It showed that the influences from gyro zero-position,rocket thrust eccentricity,launch mode and downwash flow field caused by helicopter are evident.

分析结果认为导弹陀螺零位、发动机推力偏心、导弹发射方式、直升机旋翼下洗流场等因素的影响是显著的，特别是在这些因素的综合影响下，初始弹道将出现很大的偏离。

The error of inertial navigation systems is cumulated in course of time because of the drift of the measurement unit-gyroscope. Using the celestial navigation system and the information processing technology, the paper disscusses the INS/CNS integrated navigation systems.

惯性导航系统由于其感测元件—陀螺仪的漂移造成导航系统误差随时间不断累积，本文利用天文导航系统，结合信息处理技术，探讨了惯性/天文组合导航系统的相关问题。

Electronic triple-axis gyro with accurate attitude control and artificial horizon.

电子三轴陀螺加上精确的姿态控制及水平修正。

The experiment resuh shows that in straPdawn condition, with thegnscoP suPPlying attitude, the measuring direction s maximum ermr is less than 0 .6 degree (the range of the bank angle and the pitch angle is within ± 45°).

实验结果表明：在捷联状态下，用垂直陀螺提供我体的姿态角，在俯仰角、倾斜角达±45°的情况下，测角精度优于0.6°。

The influence of Kerr effect to close-loop digital resonator fiber optic gyroscope based on square-wave frequency modulation was analyzed in theory.

对采用方波频率调制数字闭环谐振型光纤陀螺中克尔效应的影响进行了深入的理论分析。

Using the optical field overlapping method, the analytical expression for the rotation-rate error due to the optical Kerr effect is derived.

通过光波场叠加原理，推导得到调相谱检测方案下的谐振式光纤陀螺系统中，光克尔效应引起的系统零漂的解析表达式。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐