The error analysis shows that the measurement error is caused by the noise of the accelerometer, discrete double integration, noise of beacon and frequency characteristic error.
对线加速度计辅助惯性姿态角测量的误差分析表明，测量误差由加速度计噪声、二次积分离散化、信标噪声和加速度计频率特性误差组成。
The edge transition of pulses from incremental encoder can be detected with double frequency to improve measurement precision, and to avoid measurement errors and accumulative errors.
汉字和图形相结合。对增量编码器的脉冲信号沿变化进行倍频检测，提高分辨精度，避免计数误差和累积误差。
In the light of the performance features of KNUDSEN 320M detector, this paper analyzes on the application of double frequency detector in the water-depth measurement.
针对KNUDSEN 320M型测深仪的性能特点，介绍了双频测深仪在水深测量中的应用。
The Angle spectrum analysis of self-image of double frequency grating is given. The grating duplication and the measurement of lens focus are obtained by Tablot effect of holographic phase grating.
本文给出了双频光栅自成象的角谱分析，并利用位相型的全息双频光栅的太保效应来进行复制光栅和测定透镜焦距等。
So a method of 3d measurement technology based on virtual grating of double frequency was present in the paper.
为解决该问题提出了利用双频虚拟光栅投影的三维测量方法。
The system with double 8051 chips collaboration realizes frequency measurement, improves reaction velocity of measurement system greatly and can be widely used in real time control systems.
该系统采用双8051芯片相互协作实现频率测量，使测量系统的反应速度大大提高，特别适合于在许多实时控制的系统中推广应用。
The system with double 8051 chips collaboration realizes frequency measurement, improves reaction velocity of measurement system greatly and can be widely used in real time control systems.
该系统采用双8051芯片相互协作实现频率测量，使测量系统的反应速度大大提高，特别适合于在许多实时控制的系统中推广应用。
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