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grating signals
相关语句
  光栅信号
     The experimental result shows that the grating signals received are stable and can realize grating counts.
     试验结果表明,该系统接收到的光栅信号稳定,满足光栅计数的要求,成像式光栅自准直测角方法原理可行。
短句来源
     In this study, a novel comprehensive method of extracting high-quality grating photoelectric signals in the absolute rotary encoders is developed. It uses combined stop index gratings for spatial filtering of grating signals to enhance their sine property. It uses phase vector correction of grating signals to improve their orthogonality.
     通过分析研究,提出了一种新的提取高质量光栅光电信号的综合措施及方法,即采用组合光阑指示光栅进行光栅信号空间滤波以改善光栅信号的正弦性,采用光栅信号相位矢量修正以改善信号的正交性,并结合前人精化光栅光电信号的研究成果,如多线平均、信号相减处理、多读数头相加平均等光栅光电信号精化处理的综合措施及方法。
短句来源
     In Computor AidedTest(CAT) for stick-slip,one key problem is that fixed-intermission data collection of stick-slip grating signals take memory space in microcomputor and have to deal with a vast amountof processing work.
     本文针对爬行的计算机辅助实验(CAT)中遇到的一个关键问题,即爬行光栅信号定间隔数据采集占用微机内存和处理工作量大的问题,进行理论和试验研究,提出一种变间隔数据采集原理,并给出一种在以Z80CPU单板机为核心而构成的微机辅助试验装置上具体应用的方法。
短句来源
     Realization of high division number of coarse grating signals by fully digital processing method
     粗光栅信号全数字化处理法实现高倍数细分
短句来源
     The industrial grating signals can be digital frequency multiplication with a phase-locked loop (PLL) controlled by a microcomputer.
     用微型计算机控制锁相环(PLL)可对计量光栅信号进行数字倍频。
短句来源
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  “grating signals”译为未确定词的双语例句
     A Method for Determining the Interpolation Error of Grating Signals Without Length Reference
     不依赖于长度基准的光栅细分精度的评定方法
短句来源
     A METHOD OF PROCESSING GRATING SIGNALS BASED ON SINGLE-CHIP MICROCOMPUTER
     一种光栅计量的单片机处理方法
短句来源
     The relation between interpolation error and Lissajou's figure is analyzed for grating signals.
     分析了光栅细分精度与利萨如图形的关系,给出了通过利萨如图形评定光栅细分精度的方法。
短句来源
     Usually the process of dealing with grating signals is complex. A new method based on single-chip microcomputer PIC16C622 is suggested in this paper.
     光栅传感器信号处理电路通常比较复杂,该研究在分析光栅计量的辨向、细分原理后提出一种采用PIC16C622单片机为核心的信号处理方案。
短句来源
     Simulation experiments show that the accuracy of subdividing the grating signals is very high so long as using a few training samples.
     仿真实验结果表明,仅用少量样本即可达到很高的细分精度。
短句来源
  相似匹配句对
     The Interface of High Precision Grating Signals with Micro Computers
     高精度光栅信号微机接口
短句来源
     Ultrasonic Grating
     超声光栅
短句来源
     Influence of Fiber Grating Nonlinear Delay on Chirped CATV Signals
     光纤光栅非线性时延对啁啾的电视信号的影响
短句来源
     Information and Signals
     信息与信号
短句来源
     recombination of signals.
     信号重组。
短句来源
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  grating signals
This condition can be controlled either by the time course of the absorption or grating signals.
      
We present a description of temperature effects on the evolution of transient grating signals and report on the relationships among several seemingly different theoretical approaches to the description of transient gratings in molecular crystals.
      
Transient grating signals obtained from the hydrated electron in D2O.
      
Simulated transient grating signals for perpendicular polarization of excitation pulses.
      
It is important to notice that those results only concern grating signals.
      


This peper pcints out the defect of the existing methods for determinating the grating gaps. The basis and the measuring method of determination of the grating gaps are discussed. Basing on the measurement of the grating signal quality and the subdivision accuracy, the working gap ranges of 25, 50, 100 lines/mm gratings are recommended as a reference for practical work.

本文指出目前在确定光栅付间隙值时所用方法中的不足;讨论分析了确定光栅付间隙的依据及其测定方法;并在测定光栅信号质量及细分精度的基础上,推荐了25、50、100线/mm三种光栅的工作间隙区段,供实际工作的参考。

This paper puts forward the quick"table-seeking" principle and a set of methods for the electronic division of the Moré-fringe signal. The measurement accuracy is mainly dependent on the quality of the grating signal. The system can perform the real-time data sampling with fourty divisions of the Moré-fringe signal. The exeprimental results show that the "table-seeking" method can measure the grating displacement quickly and accurately.

本文根据微机的特点,提出了用快速“查表法”对莫尔条纹信号进行电子细分的原理和一套完整的方法,测量的精度主要取决于光栅信号的质量。以此为基础,详细介绍了以TP-801单板机为核心完成40细分的实时数据采集与处理系统的组成,工作原理及微机算法程序。实验结果表明:用“查表法”可以对光栅位移量进行快速而精确地测号。

The paper introduces the principle of subdividing grating signal based on microcomputer by means of the orthogonality between sine and cosine signal,and gives the formulae for calculating the phase of sample points. In the paper,a new kind of peak/valley holder circuit is put forward and designed to eliminate the errors of gathered peak and valley value caused by the orthogonality errors in the ordinary way.The method of rectifying the influence of the orthogonality on measurement by software is...

The paper introduces the principle of subdividing grating signal based on microcomputer by means of the orthogonality between sine and cosine signal,and gives the formulae for calculating the phase of sample points. In the paper,a new kind of peak/valley holder circuit is put forward and designed to eliminate the errors of gathered peak and valley value caused by the orthogonality errors in the ordinary way.The method of rectifying the influence of the orthogonality on measurement by software is provided, too. The results have proved that the distinguishability of 0.002T(T refers to the period of the grating.)and the accuracy of 0.005T can be achieved by using the method discussed and a 8-bit ADC.

本文介绍了利用正、余弦信号的正交性进行光栅信号微机细分的原理,给出了采样点的相角计算公式,提出并设计了一种用于光栅信号峰、谷值采样的峰、谷值保持电路,避免了通常在利用正、余弦信号的正交性进行峰、谷值采样时因正交性差而带来的误差。此外,还介绍了在软件上校正正、余弦信号正交性对测量精度影响的方法。分析表明:采用八位模数转换器时该方法的分辨率和精度分别可达光栅周期的0.2%和0.5%.

 
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