均方根值

  • 网络RMs;root mean square;r.m.s.;GRMS;TRMS
均方根值均方根值
  1. 实验结果表明,均方根值变化均小于0.01λ(λ:632.8nm),具有满足要求的光学稳定性。

    The experimental results show that their RMS variations are less than 0 . 01 λ(λ: 632 . 8nn ) . Their stabilities can meet the requirements of the items .

  2. 传统的光学系统的面形评价指标主要有峰谷值、均方根值以及中心点亮度等。

    It is generally to use PV , RMS and Strehl ratio to assess surface errors , the inherent relationships among these conventional optics specifications are discussed in this paper .

  3. 作者介绍了X线照片均方根值(rootmeansquare,RMS)粒状度的测试原理及方法。

    In this paper the principle and method of testing of RMS ( Root Mean Square ) graininess of radiograph were described .

  4. 介绍了逆变器谐波电流均方根值最小的脉宽调制(PWM)。

    This paper introduces the pulse wide modulation ( PWM ) based on minimum root-mean-square value of harmonic current of inverter .

  5. 利用时域均方根值电压变动特性、小波变换及FFT变换对多种电能质量扰动信号进行分层次辨识。

    Using time-domain voltage-RMS , wavelet transform and FFT , various types of power quality disturbance signals are layered-recognized .

  6. 光滑表面散射光的角度分布包含了表面的粗糙度信息,即散射光的分布与粗糙度的均方根值Rq和自相关长度1值有关。

    The angular distribution of the scattering light from a surface contains infor-mation of the surface roughness , namely the rms value and the autocorrelation length .

  7. 大部分安全标准对测试基本绝缘采用2U+1000伏作为基本公式,U为运行电压的均方根值。

    Most safety standards use the 2U - 11000 V formula as the basis for testing basic insulation , where U is the operating rms voltage .

  8. 真有效值电量传感器是针对平均值测量法不能准确测出其有效值而设计的。有效值又称均方根值(rms)。

    TRMS electricity isolated sensor is designed for test that can not be tested exactly by average test method , RMS is also root mean square .

  9. 本文采用准分子激光加工方法,选择不同的工艺参数对Al2O3陶瓷材料试件进行加工,通过表面轮廓仪测量表面微观形貌,并计算其表面轮廓高度均方根值Rq。

    Excimer laser texturing was performed on the surfaces of Al_2O_3 ceramic under a group of processing parameters , in order to investigate the different processing parameters in relationships with the surface topography .

  10. 通过实验选取声发射信号的均方根值、进给率f和修整深度h作为特征参数,并考虑各参数对金刚笔钝化状态的影响程度,选择初值化的数据处理方式,以提高识别的精确性。

    Through experiments , the dressing depth , the feed rate and RMS were selected as the characteristic parameters , and considering effective degree of the characteristic parameters , the data processing method for initial value was selected so as to enhance the accuracy .

  11. 随着CF4流量的增加,F-DLC膜中sp3/sp2的比值降低,膜表面粗糙度的均方根值(RMS)减小;

    With the increase of the CF 4 flux , the sp3 / sp2 ratio and RMS values of F-DLC films are decreased .

  12. 本文从半导体激光器应用的角度出发,设计微准直菲涅耳透镜,获得了束腰直径为0.5mm、波前差的理论均方根值W(RMS)<0.002λ的准直光束。

    A micro-collimating Fresnel lens is designed for the application of semiconductor laser . Collimating beam with 0.5m and theoretical RMS W_ ( RMS ) < 0.002 λ of wavefront aberration is obtained .

  13. VDV的幅值主要取决于振动信号的性质。ISO2631/1不适用峰值因素高于6的振动,并且,VDV不像加速度均方根值那样具有明确的物理意义。

    Mathematically , the magnitude of VDV depends on the nature of vibrational signals and other factors .

  14. 为了查明岩石压入硬度与声发射参数如累计信号数、总能量、峰值RMS(信号均方根值)、积分RMS等之间的关系,在9种不同的岩石中进行了压入试验。

    In order to explore the correlation of rock indentation hardness with acoustic emission parameters such as accumulated number of events , total energy , peak RMS and integrated RMS . nine different types of rocks were tested .

  15. 通过对中频段的波前位相均方根值的分析表明,波前数据的空域处理采用Quadflip技术较为合适,对频域滤波器的选用需要综合考虑滤波的有效性及波前的失真。

    The result shows that for mid-frequency wavefront analysis , Quad-flip technique is a good algorithm in space domain to reduce edge effects , while for frequency filter function , the validly and wavefront distortion must be considered .

  16. 所测光盘基片平整度的峰谷值为7.88mm,均方根值为2.0mm。

    Peak-valley value and RMS value of the measured compact disk substrate flatness are 7.88-micron and 2.0-micron , respectively .

  17. 归纳整理了评价1/4汽车悬架系统性能的两种评价指标:传递函数法性能评价指标和均方根值法(RMS)性能评价指标,并将其应用到悬架系统试验中。

    The research content of this paper includes four parts : Firstly , conclude two kinds of performance evaluation index of 1 / 4 vehicle suspension system : the transfer function evaluation method and the square root value ( RMS ) evaluation method .

  18. 分析了激光加工工艺参数对表面形貌的影响,利用模糊分析方法,就激光器的放大器电压、激光脉冲频率、激光扫描速度等工艺参数对表面形貌轮廓均方根值Rq的影响进行了评价。

    The trend and degree of the effect on surface topography parameters by processing parameters , such as amplified volt , laser scanning frequency and laser scanning speed , are analyzed .

  19. 检测结果与ZYGO数字波面干涉仪进行了比对,峰谷值、均方根值均优于1/15λ,并具有很好的可重复性。

    Compared with the results of ZYGO interferometer , an error less than 1 / 15 λ for both peak-valley and root mean square value , is gained with good repeatability .

  20. 通过有限元分析计算能看出大型反射面板对天线结构精度有较大的影响。加筋反射面板的刚性可以降低天线结构重量和减小天线反射面的均方根值(RMS)。

    After analyzing and computing a large antenna structure by a finite element program , it turns out that a large antenna panel has large influence on deformation of antenna backup , and reinforced panel can reduce the gravity of antenna structure and diminish the RMS of antenna panel .

  21. 此外,程序还可进行光学点图计算,显示出在人工给定离焦面上点分布,给出空间光线对主光线的能量集中度曲线和OPD均方根值。

    Besides , it can also be used to calculate Spot-Digram of the system so as to display ray distribution in the defocussed image plane , give out the curve of the ray 's energy density and Square-root-means of its OPD value in that plane .

  22. 结果表明,伪距噪声均方根值为0.236m,当卫星高度角小于30°时,伪距噪声开始明显增大。

    The results show that the pseudorange noise is 0.236m , and it is found that the noise level becomes high markedly as the elevation angle of satellites is decreases below 30 ?

  23. 方法:40人77只正视眼及屈光不正眼,散瞳后用基于Tscherning原理的波阵面像差仪进行测量,记录高达6阶的波阵面像差Zernike系数和均方根值,并进行统计学分析。

    Methods : Forty of cases 77 emmetropic and ametropic eyes were measured with an aberrometer based on Tscherning 's principle with the pupils dilated . The Zernike coefficients and root mean square values of wavefront aberrations up to the 6th order were recorded and statistically analyzed .

  24. 现场噪声参数比较结果:锤锻声最大线性峰值(122.6~142.4dB)和峰值的变化以及A计权慢档均方根值(L(AS))的全距,均明显大于织布声;

    The comparative results of noise parameter in the field were : The maximum linear peak ( 122.6-142.4dB ) , variability of peak and total range of A-weighted root-mean-square level with slow time constant ( LAS ) in the drop-forging noise were evidently greater than those in the weaving noise ;

  25. 实测结果表明,主动镜两个轴上的转角行程和分辨率均方根值完全达到了设计指标。采用紧凑型有源镜激光器(CAMIL)的抽运方式,验证了Yb:Y2O3透明陶瓷的激光输出性能。

    The real measurement result for active mirror is given . Further more , with the compact active mirror laser ( CAMIL ) design , the laser parameters of Yb : Y_2O_3 ceramic are demonstrated at room temperature .

  26. 但各阶均方根值变化不同。

    There are different changes in the value of each order RMS .

  27. 计算天线反射面变形的均方根值;

    To calculate deformation square root of antenna reflector ;

  28. 基于残差均方根值法的结构损伤识别理论与应用

    The Structural Damage Identification Theory and Application Based on Root Mean Square Difference Method

  29. 兰州台阵勘址测点均方根值的计算与分析

    The calculation and analysis of root mean square for Lanzhou Seismic Array survey sites

  30. 三是传给人体的加速度均方根值最小。

    Third , the acceleration root value spreading to the human body is minimum .