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   an accelerometer 在 航空航天科学与工程 分类中 的翻译结果: 查询用时:0.41秒
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an accelerometer
相关语句
  加速度计
    Lever arm effect error,resulted from non-conformity of mounted position of the inertial measuring unit and center of mass of a vehicle causes an additional interference acceleration existed in an accelerometer output. It is one of the main error sources Of the inertial navigation system.
    杆臂效应误差是由于惯性测量组件安装位置与飞行器质心不重合而引起加速度计输出中的附加干扰加速度,它是惯导系统的主要误差源之一。
短句来源
    To 3 dimonsional test,used an accelerometer fixed in model measuring in time the model actual attack angle,and preprocessed to test results,so that diminished those errors as a consequence of the aeroelastic angle.
    对于三元实验 ,用一个加速度计固定在模型内 ,实时测量模型的实际攻角 ,并对实验结果进行预处理 ,从而减少因气动弹性角产生的误差。
短句来源
    Taking an accelerometer, as the objective, the paper gives a more detailed description and analysis on the random sampling method, and presents detailed simulation procedures and results.
    以加速度计为对象,对随机采样法进行描述和分析,并与传统的固定采样频率方法进行了对比.
短句来源
    The accelerometer's fixing attitude errors and precision-centrifuge's main-axis' attitude errors are important factors influencing testing and scaling accuracy of accelerometer, when testing and scaling an accelerometer on precision centrifuge.
    在精密离心机上进行加速度计测试和标定时 ,加速度计的安装姿态误差和精密离心机主轴姿态误差是影响加速度计测试和标定准确度的重要因素。
短句来源
    The data collection of an accelerometer is demonstrated in detail. FPGA is adopted to realize the initialization and data collection of the high precision programmable AD7716 chip. The data that FPGA collects is delivered to DSP to carry on navigation computation.
    介绍了加速度计的数据采集方法,采用大规模可编程门阵列(FPGA)实现高精度可编程芯片AD7716的初始化和数据读取,FPGA将所读加速度的数据(包括其他数据)传给DSP,使其在DSP中参与导航解算工作,这里给出了在DSP中所实现的软件流程图.整个设计通过实际运行,证明其有一定的实用价值.
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  an accelerometer
A quartz stress gage is placed between the aluminum bar and tungsten disk, and an accelerometer is mounted to the free end of the tungsten disk.
      
As an application, the mechanical impedance of an accelerometer is evaluated.
      
An accelerometer provided closed-loop control on both vibration amplitude and resonant frequency through special circuitry.
      
An accelerometer buoy wave gauge developed in the Marine Hydrophysical Institute of the Ukrainian Academy of Sciences is described.
      
A quantum model of the states of the primary transducer of an accelerometer is proposed.
      
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Lever arm effect error,resulted from non-conformity of mounted position of the inertial measuring unit and center of mass of a vehicle causes an additional interference acceleration existed in an accelerometer output. It is one of the main error sources Of the inertial navigation system. The paper analyses systematically and deeply from theoretical point of view the im7uence of lever arm effect error on the accuracy of the navigation system and describes the simulation results on several particular conditions....

Lever arm effect error,resulted from non-conformity of mounted position of the inertial measuring unit and center of mass of a vehicle causes an additional interference acceleration existed in an accelerometer output. It is one of the main error sources Of the inertial navigation system. The paper analyses systematically and deeply from theoretical point of view the im7uence of lever arm effect error on the accuracy of the navigation system and describes the simulation results on several particular conditions.

杆臂效应误差是由于惯性测量组件安装位置与飞行器质心不重合而引起加速度计输出中的附加干扰加速度,它是惯导系统的主要误差源之一。本文从理论上系统、深入地分析了杆臂效应误差对导航系统精度的影响,并针对几种情况对系统进行了仿真。

This paper describes the characteristics of model attitude angle measurement and control system for normal and dynamic test,and the effective methods for advancing the precision and accuracy of angle measurement in NF 3 low speed airfoil wind tunnel.Used a DC servo system based micro computer,we have achieved the precision of the model attitude angle in±3′,by means of motor position and velocity closed loop.For higher performance of the measurement and control to 2 dimensional test,used a round inductive...

This paper describes the characteristics of model attitude angle measurement and control system for normal and dynamic test,and the effective methods for advancing the precision and accuracy of angle measurement in NF 3 low speed airfoil wind tunnel.Used a DC servo system based micro computer,we have achieved the precision of the model attitude angle in±3′,by means of motor position and velocity closed loop.For higher performance of the measurement and control to 2 dimensional test,used a round inductive synchronous transducer fixed on airfoil axis measuring model actual angle and acting as feed back signal.This all position closed loop system can arrive at angle precision in ±0.0083°.To 3 dimonsional test,used an accelerometer fixed in model measuring in time the model actual attack angle,and preprocessed to test results,so that diminished those errors as a consequence of the aeroelastic angle.

介绍NF 3低速翼型风洞常规和动态实验模型姿态角测量和控制系统的特点以及为提高角度测量精度和准度所采取的措施。应用一种直流伺服系统 ,采用电机位置和速度闭环方法 ,已经获得模型姿态角的精度在± 0 .0 5°以内。为进一步提高测控性能 ,对于二元实验在翼型轴上安装圆感应同步器 ,测量模型的实际角度 ,并作为反馈信号。这种位置全闭环系统 ,可使角度精度达到± 0 .0 0 83°。对于三元实验 ,用一个加速度计固定在模型内 ,实时测量模型的实际攻角 ,并对实验结果进行预处理 ,从而减少因气动弹性角产生的误差。

In order to compensate the nonlinear errors induced by the rectification for high frequency vibrations in the inertial measure unit (IMU), the paper presents a new random sampling method. Taking an accelerometer, as the objective, the paper gives a more detailed description and analysis on the random sampling method, and presents detailed simulation procedures and results. An improved method is proposed aiming at the shortcomings of the original random sampling method. Results of simulation show that the...

In order to compensate the nonlinear errors induced by the rectification for high frequency vibrations in the inertial measure unit (IMU), the paper presents a new random sampling method. Taking an accelerometer, as the objective, the paper gives a more detailed description and analysis on the random sampling method, and presents detailed simulation procedures and results. An improved method is proposed aiming at the shortcomings of the original random sampling method. Results of simulation show that the new method causes only a white noise of smaller intensity while the computing load is not much increased.

为了补偿由于惯性敏感元件高频振动整流所引起的非线性输出误差,研究一种新的补偿方法——随机采样法.以加速度计为对象,对随机采样法进行描述和分析,并与传统的固定采样频率方法进行了对比.在此基础上,对原随机采样法进行了改进.最后给出了详细的仿真程序和结果.仿真结果表明,新的随机采样法比原方法的精度有明显改善,所引入白噪声的强度更小,但计算负担的增长不是很明显.

 
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