本文重点论述数字检波器的畸变测量的理论根据和测量方法。
The emphasis laid on this article is to expound the theoretical grounds and way of measurement about the distortion measurement of digital seismometer.
“因为我们测量方向并不是用指南针或者尺子而是用红移，所以呈现的方向会有畸变，”马里·诺尼说。
"The apparent orientation is biased because we measure orientation not with a compass or with a ruler but with redshift," Marinoni says.
每个测量线必须被放置在沿着一个图像里的直线，这条线应该是直线，但由于透镜畸变实际上是弯曲的。
Each measurement line must be placed along an image line that should be straight, but because of lens distortion is actually curved.
畸变系数可以通过在图像中绘图测量线来估计。
Distortion coefficients can be estimated by drawing measurement lines in the image.
更进一步讲，从随机激励中提取出来的模态参数同样会有畸变，并且在很多情况下，在测量结果中实际上看起来好像是有两个峰。
To go one step further, the extracted modal parameters from the random excitation will also be distorted, and in many cases, there actually appears to be two peaks as seen in the measurement.
测量结果表明：在地板上确实存在一个畸变的附面层位移面，它与自然增长的地板附面层截然不同。
The measurement results show that there is really a distortional boundary layer displacement surface on the ground board, and it fully differs from natural growing boundary layer on the ground board.
在条纹投射测量系统的标定过程中对摄像机畸变图像进行修正，能有效地提高系统的标定精度。
Correcting the distorted image of camera in calibration process of fringe projection measurement system that can effectively improve the calibration accuracy of system.
实验证明：光学系统时间畸变和时间弥散，将影响超快现象的测量。
Experiments shows: the temporal distortion and dispersion of an optical system affect the measurement of ultrafast phenomena.
摄像机光学畸变的修正以及图像处理的亚像素定位方法，减小了目标图像的定位误差，提高了系统的测量和调整的精度。
The correction of camera optics distortion and sub-pixel method for image processing can reduce the error of target image orientation for the precision improvement of system measuring.
本文提出了一种新的自适应畸变功率测量方法。
An adaptive window function for distorted power measurement is introduced in this paper.
从光学测量角度出发，结合计算机视觉中的摄像机标定方法，解决了大视场短焦距镜头CCD摄像系统的畸变校正问题。
According to the principle of optical measurement, a simple and effective method to measure the distortion of CCD camera with a largefield, short focal length lens is presented.
为了用普通低成本的广角镜头摄像机实现较大视场的精确定量的图像测量，必须对畸变图像进行校正。
To implement accurate metric measurement within a large field of view with common off the shelf cameras, the image distortion caused by wide angle lenses should be corrected.
利用HIOKI3164和TOPVIEW31分析软件，可对交-直-交变频器中电压、电流、功率、频率进行准确测量，不论它是不规则波形还是畸变波形。
In AC-DC-AC VVVF, We can accurately measure voltage, current, power and frequency with The HIOKI3164 and TOPVIEW31 analysis software, even if the wave is irregularities and distortion.
数码相机摄入图像时产生的线性几何畸变会给叶片面积的测量带来误差。
The leaf image taken by digital camera often has linear geometric distortion, it can bring error to the measurement of leaf area.
通过对图像瞄准系统中的畸变分析，提出以激光长度测量值作为长度基准的成像系统在线自标定方法。
In this paper the distortion of image collimating system is analyzed, and then an on-line self-calibration method with double-frequency laser length measuring result as length datum is presented.
本文提出用数字图像相关技术高精度测量光学成像系统的畸变。
The following put forward the method that measuring distortion of optical image system by means of digital image interrelated technique accuracy.
描述了一种在三相波形高度畸变的系统中可正确测量基波功率的方法。
A correct method for measuring the fundament component of power in a high distorted three phases system is described, Its cost is rather low.
但在实际应用中，激光光束的漂移、传输折射以及光学畸变对测量系统的测量精度具有不可忽视的影响。
However, in practice, the excursion, transmission refraction and optics aberrance of the laser beam will affect the measuring precision.
分析了镜头的几何投影变换关系，标定了镜头的畸变系数，达到高精度测量目的。
The geometric projective transformation of lens was analyzed, and the distortion coefficients of lens were calibrated for realizing high-precision measurement.
在本系统中，选用LED光源和畸变小的镜头作为视觉检测系统的照明光源和成像镜头，为精密测量提供了高质量的图像。
The LED light source and lenses with little distortion are selected as light sources and lens of imaging for inspection system, which provide high quality images during precise inspection.
在动态参数测量中，测量系统的工作频带不够宽，将引起整个波形的畸变。
When measuring a dynamic parameter, if the bandwidth of measurement system is not broad enough the wave will be distorted.
提出了针对大视场投影光刻物镜畸变的计算方法，并在完成的畸变特性测量装置上进行了8英寸的硅片测量。
The calculative method of the large field projection lithography lens is presented, and on the distortion measuring setup which is accomplished, distortion measurement of 8 inch wafer is completed.
试验技术上采用高压封闭容器，引起小液滴回流会造成液雾测量上畸变。
Experimentally using high pressure container for drop size measurement will cause recirculation of small droplets introducing spray measurement error.
在利用HL-5霍尔效应测试仪测量磁场的实验中，发现有些仪器的测量曲线在磁极边缘附近存在畸变。
Magnetic field curve distortion is found at the position of magnetic pole edge in Hall effect experiment, using HL-5 Hall effect testing instrument.
准确地测量含有广角耦合物镜的图像显示系统的几何畸变是实现图像显示系统几何畸变数字校正的前提和关键。
Accurate measurement of geometrical distortion of image display system with wide-angle objective lens is the precondition and key of digital distortion correction.
为了实现在大范围内的测量，摄像机采用了广角镜头摄像，同时也引入了比较大的图像畸变。
To conduct a large scale measurement, wide-angle lens is used in the camera and at the same time image distortion is introduced.
由于局部放电脉冲波形是不规则的，显然，它们的频谱是不同的，这将导致在测量点上脉冲波形的畸变。
Since a partial discharge pulse waveform is irregular and the spectrum of each pulse is different, a pulse wave form will be distorted at the measuring terminal of the circuit.
利用面阵CCD测量不规则平面物体面积时，图像畸变对测量精度影响很大。
In the area measurement of an object with irregular plane using area array CCD, the precision is greatly influenced by image distortion.
利用面阵CCD测量不规则平面物体面积时，图像畸变对测量精度影响很大。
In the area measurement of an object with irregular plane using area array CCD, the precision is greatly influenced by image distortion.
应用推荐