重力计

The moment load is calculated by multiplying the total payload mass by the acceleration (due to gravity and due to the robot/gantry) by the distance of the payload's center of gravity to the rotating pinion.

弯矩负载的计算式：工作负载质量×加速度（由重力和机器人/门架系统引起）×负载重心到旋转齿轮的距离。

Based on a constant value of gravitational acceleration at a given location of the earth and accurate measurement of tilting angle of the table, a calibrating method and procedure for primary parameters of accelerometers, i.e.

基于地球上给定地点的重力加速度为一恒量和转角的准确测量，给出了加速度计主要参数（灵敏度、线性度和横向灵敏度）的标定方法和步骤。

On moving base, a new initial alignment algorithm for strapdown inertial navigation system is proposed. In the algorithm, two special inertial frames, the initial-time inertial frame (i0 frame) and the initial-time SINS body inertial frame (ib0 frame), are defined and are selected as calculation reference frames, then, the calculation of initial alignment direction cosine matrix is expanded into three parts:(1) the DCM between i0 frame and the navigation frame will be easily obtained via local geographical coordinates and initial alignment time;(2) attitude updating using gyro samples gets the DCM between SINS frame and ib0 frame;(3) by explaining SINS specific force equation in SINS body frame, the relation between velocity log, accelerometer measurement and gravity acceleration is established to achieve the constant DCM from ib0 frame to i0 frame.

在运载体运动情况下，提出了一种适用于捷联惯导系初始对准的新算法，该算法以惯性空间为参考基准，即建立了初始时刻惯性坐标系（i0系）和初始时刻捷联惯组惯性坐标系（ib0系）两个惯性坐标系，将初始对准姿态矩阵的实现分解为三部分：（1）通过地理位置和初始对准时间求解i0系至导航坐标系的变换矩阵；（2）使用姿态更新算法实时计算捷联惯组相对于ib0系的变换矩阵；（3）通过惯导比力方程变形，获得测速仪辅助测量、加速度计输出和重力加速度之间的关系，从中可以求解出从ib0系至i0系的常值变换矩阵。

Based on the gravity gradient measurement principle of rotating accelerometer gravity gradiometer ,an online method of accelerometers scale factor adjusting is proposed in this paper.

在旋转加速度计重力梯度仪的重力梯度测量原理的基础上，本文提出了加速度计标度因子的在线调整方法。

In this paper, the principle of the accelerometer-based gravity gradiometer is presented and its measurements formulas are derived using the basic equation of acceleration in a rotating body.

然后以美国Bell/Aero公司生产的重力梯度仪为例，导出旋转加速度计式重力梯度仪测量结果。

Accelerometer can not measure gravitational acceleration.

通过力学基础的角度来解释加速度计，并通过试验的方法，验证了加速度计不能测量重力加速度这一结论的正确性。

By installing the microwave antenna and gravity accelerometer to the rotating flying object, the Digital Signal Processing systems inside it can receive the linear polarization electromagnetic wave emitted by the land microwave transmitter and the output signal of the accelerometer.

论述了在高速的旋转飞行体上安装微波天线和重力加速度计，由地面微波系统发射线极化微波，飞行体上的信号处理系统利用接收到的微波的线极化特性和重力加速度计输出的信号波形，对其飞行状态进行精确识别的技术。

This paper studied the relationship between impulsive moment of radial tidal current and Alai phenomena, and concluded that: M acting on the earth's axis inspires Chandler wobble; the change of M depends on the interaction of the water, tidal force and the effects of the earth's rotation; under certain conditions, M changes dramatically during eclipse, which makes the amplitude of Chandler wobble change in the form of pulse.

本文研究了径向潮流冲量矩M与阿莱现象的关系，得出的结论是：M作用于地轴激发了Chandler摆动；M的变化取决于海水、引潮力和地球自转效应的相互作用；日食或月食期间，在一定的条件下，M变化的非常剧烈，引起Chandler摆动振幅脉冲式的变化，进而引起地球纬度的变化，最终导致地球表面重力加速度的变化；这种变化可以通过傅科摆摆动平面角速度的变化或重力计的示数变化反映出来。

3-axis acceleration sensor is a single chip device which is developed by freescale based on MEMS.It can sense fall,tilt,motion,positioning,shock or vibration on the three axises in a very high sensitivity.It is small and has low power consumption.It has the feature of Selectable Sensitivity which allows you to select different g value among 4 sensitivities.So it can be applicated in various of areas.

飞思卡尔开发的基于微机电系统的三轴向低重力加速计是一款单芯片设备，能在XYZ三个轴向上以极高的灵敏度读取低重力水平的坠落、倾斜、移动、放置、震动和摇摆变化，体型小巧功耗低，且有可选量程，可广泛的应用于各个领域。

3-axis acceleration sensor MMA7260Q is a single chip device which is developed by freescale based on MEMS.It can sense fall,tilt,motion,positioning,shock or vibration on the three axises in a very high sensitivity.It is small and has low power consumption.It has the feature of Selectable Sensitivity which allows you to select different g value among 4 sensitivities.So it can be applicated in various of areas.

飞思卡尔开发的基于微机电系统的三轴向低重力加速计 MMA7260Q 是一款单芯片设备，能在XYZ三个轴向上以极高的灵敏度读取低重力水平的坠落、倾斜、移动、放置、震动和摇摆变化，体型小巧功耗低，且有可选量程，可广泛的应用于各个领域。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷