查询词典 acceleration time

The latter employs the suspected angular acceleration model, so that the uncertain vehicle dynamic model is avoided being utilized.

基于EKF的姿态求解算法，通过假定机体角加速度模型，避免了一般基于滤波方式的姿态算法中需要复杂刚体运动方程的缺点。

The three-parameter sine-curve-fitted algorithm was used for data processing. Some experiments were finished and the relevant experiment curves were given when the sine acceleration amplitude was equal to 200 m/s^2 and the angular frequency range was from 0.1 Hz to 10 Hz.

介绍了实验数据的处理方法三参数正弦波拟合算法，并在正弦加速度幅值为200 m/s^2、角频率范围为0.1~10Hz的条件下进行了实验验证，给出了相应的实验曲线图。

The traditional inertial measurement unit often uses the linear accelerometer to measure the acceleration of object, and uses the gyro to measure angular velocity of object.

在传统惯性测量系统中，常利用线加速度计测量物体的加速度，利用陀螺测量物体的角速度。

In this paper, the sine and cosine shaped sensors have been designed by using the integral characteristics of PVDF piezoelectric film. The sine PVDF sensor can be used alone to measure the displacement, speed, acceleration, stain, stress of the roof beam vibration; the cosine PVDF sensor can be used alone to measure the angular displacement and shear of the roof beam vibration; by using them jointly , the structural intensity can be measured for the roof beam without any finite differential error.

本文利用PVDF压电薄膜独特的积分特性，设计制作了正弦形状和余弦形状传感器，它们单独使用，正弦形状的PVDF传感器可以用来测量梁振动的位移、速度、加速度、应变、应力、弯矩；余弦形状的PVDF传感器可以测量振动梁的角位移和剪力；配对使用它们，可以用来测量梁的结构声强，用它们测量结构声强时不会产生有限差分误差。

Roscopic survey technology uses dynamical tuning velocity gyro to measure the angular speed component of earth rotation; the quartz accelerometer measures the acceleration component of earth, the dip angle, azimuth angle, instrument side angle and some other parameters of well bore are calculated.

陀螺测斜技术以动力调谐速率陀螺测量地球自转角速率分量和石英加速计测量地球加速度分量为基础，经计算得出井筒的倾斜角、方位角、工具面角等参数。

A new angular accelerometer of floated-fly-wheel type is introduced in this paper.This angular accelerometer can be used to measure precisely angular acceleration directly.it's principle, structural features, all-round precise blancing technique, testing method and results are discussed.

液浮飞轮式角加速度计的研制邹桂根，林明邦关键词角加速度计，液浮飞轮，随遇平衡，伺服系统中图法分类号TH824近10年来，美国、日本等技术发达的国家都致力于研制角加速度计以替代利用陀螺、线加速度计布阵的角加速度间接测量法，因为后者是将感应。。。

In this paper, CAD is used to carry out the analysis of the positive kinematics of 3R robot, the velocity and acceleration curve s are drawn and discussed and analyzed, and the robot machine working state is animatedly simulated.

采用计算机辅助设计对 3R机器人机构进行正向运动分析，绘制出速度、加速度曲线并对其进行分析和讨论，动画模拟机器人机构工作状

Apparent acceleration error models are established in gravity interial coordinate at launching point.

该文建立了在发射点重力惯性坐标系内的视加速度误差模型。

The opening parachute signal is required to sent on the fixed height when the vehicle reentry.The height controlled error through axis apparent acceleration can not meet the required precision.

摘 要 弹道式飞行器再入时，常常要求在规定高度上发出开伞信号，过载延时控制方法误差太大，不能满足精度要求。

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索尼亚·吉布斯（野村投资银行首席战略员）：最重要的一点是刚才提到原油价格是不可能一直加剧上升的人们都担心这场悲剧会导致美国和全球的经济萧条，但这个推断的基础是建立在原油价格会暴涨的假设上的如果原油价格不发生暴涨，如果全球的中央银行都向市场大量注资，并下调利率，这样就有希望使这场事件造成的负面影响只存在很短的时间，而且经济就会迅速反弹。

It also analyzes the feature and development of semi-finish grinding and finish grinding by roller press.

同时进行了辊压机半终粉磨和终粉磨系统的特点和发展分析。

When I got there, water was dripping slowly from the ceiling and forming a pool on the floor.

当我到那里的时候，水是慢慢地从天花板滴而且形成在地板上的一个池。