查询词典 error of measurement

The mechanical measurement is to use an indicator to measure the surface or the edge of the testing lens mounted in a specific holder in a contact way. The principle of the optical measurement is the geometric optics, utilizing the properties of refraction or reflection of light to detect the centering error of the testing elements in a contactless way.

机械式的测量是利用指示器配合治具对待测透镜之外缘或表面进行接触式测量；而光学式的测量原理则是利用几何光学的折射或反射性质，对待测元件进行非接触式的偏心误差量测。

B. when precision testing equipment, the adjustment process: in the assembly process and equipment are completely assembled to precision testing and adjustment, such as boring bed in the installation process after grinding levelness and straightness calibration, an adjustment and measurement and cannot fully reflect the true error, and requires at least three times and measurement, can eliminate stress, and each must adjust time intervals, it takes about three days.

B。设备精度检测时的调整过程：设备在组装过程中及完全组装后均需进行精度检测及调整，如对镗床床身导轨磨削后在安装过程中的水平度和直线度的校验，一次调整与测量并不能完全反映出其真实误差，而至少需要三次调整和测量，才能消除应力的影响，且每次调整都需有时间间隔，故需时约3天。

The central studied content is: the studying for the C and R in the distance measurement, the study for standard deviation of distance measurement of the total station instrument, the study and calculation of illustration for the formula of periodic error of the total station instrument, the checking of horizontal angle.

主要的研究内容有：全站仪测距加乘常数的分析，全站仪测距标准偏差的研究，全站仪周期误差公式的分析及其实例计算，全站仪水平角的检定(多齿分度台法和多目标平行光管法)，一测回水平方向标准偏差计算公式的分析，一测回竖直角标准偏差的合理性分析及其实例计算。

In the field of polarization imaging and laser power measurement, an obvious error can be produced due to the effect of light polarization state on a photodetector in any polarization-dependent quantitative measurement.

在偏振成像和激光功率测量技术领域，凡涉及偏振光的定量测量，都会由于光束的偏振态对探测器的影响而产生显著的误差。

An accurate measurement scheme is proposed for testing the error of cone prisms with Hartmann wavefront sensor. The measurement theory was discussed, the reconstruction of the wavefront reflected from a cone prism was studied, and the relation between the wavefront characteristics and the errors of a cone prism was given.

因此，提出一种用哈特曼波前传感器全面检测角锥棱镜角度误差和面形误差的技术方案，从理论上分析了哈特曼法的测量原理，深入研究了光经过角锥棱镜后的波面重建，给出了波面特征与角锥棱镜误差参量之间的关系。

The low phase shift error is critical for measurement of non sinusoidal wave shapes, as found in power quality or sampling digital wattmeter measurement applications.

低相移误差是至关重要的衡量非正弦波形状，在电能质量或取样数字瓦特计测量应用。

This paper introduces the principle and unit of measurement of turbidimeter,a kind of instrument used to measure the content of undissolved particulate matter suspending in water or other transparent liquid.In this article the measurement uncertainty of relative indication error in the method recommended in verification regulation of turbidimeter(JJG880-1994)for turbidimeteris estimated.The sources of standard uncertainty component are analyzed in detail.The combined standard uncertainty and effective degree of freedom are calculated.

本文介绍了用于测量悬浮于水中的不溶性颗粒物质含量的仪器浊度计的测量原理和计量单位，并依据计量检定规程（JJG 880-1994）中检定示值相对误差的方法，对示值相对误差的测量结果进行不确定度评定，具体分析了各个不确定度分量的产生，并合成标准不确定度及有效自由度。

Based on the comparative analysis of weighting function, the homology and unitarity can be proved by the proposed method for motion error measurement and the common three-point method for roundness measurement.

权函数的对比分析表明该方法与圆度三点法在本质上的同源性和统一性。

Focal error signal of pickup head is achieved according to the Astigmatical principle, and that the optical non-contact probe system with the measurement ranges of 2um and the measurement uncertainty of 1.1nm is obtained. This probe system is immune to the variation of reflective ratios and curvature on the surfaces of samples via improvement of the signal process method.

其中根据光学象散原理得到激光读取头的聚焦误差信号，从而获得测量范围为2μm，测量不确定度可达1.1nm的光学非接触探头系统，通过改进信号处理方式，此探头系统可不受材料表面反射率变化的影响，并允许样品表面存在一定的曲率变化。

All dresses that sell in our stores are measured in the flatwise, but due to some of the clothes have flexibility and the way of measurement and margin mark may dissimilar it may cause some slightly different, so that all the size measurement that labelled in our stores are just for reference basis, error margin that within 2cm is consider normal.

本店所有商品尺寸皆平放测量，但因衣服有弹性、测量方式不同标示略有误差，所以本店商品里标注的尺寸仅作为参考基准，误差在2cm以内均属正常范围哟

Salt is good, but if the salt becomes flat and tasteless, with what do you season it?

14：33 盐本是好的，盐若失了味，可用什么叫它再咸呢？

He reiterated that the PLA is an army of the people under the leadership of the Communist Party of China.

他重申，人民解放军是在中国共产党领导下的人民军队。