测量误差

On the basis of study on two projects:"10-DOF ultrasonic detection system for complex surfaces part" and "Ultrasonic water-logging automatic survey system for rods", this thesis studies the technologies of ultrasonic measurement, kinematic and dynamic modeling of 10-DOF ultrasonic system, real-time sensitivity auto-adjusting, integrated technology of ultrasonic measurement, surface construction and ultrasonic detection for complex surface parts and rods, thus improving the accuracy and efficiency of ultrasonic detection for parts of complex surfaces. Meanwhile, an auto-detection system for metal rods with rough surfaces and bad columniform accuracy is presented for the first time.

本文结合&10自由度复杂曲面超声检测系统&和&棒材水浸超声自动检测系统&两个项目的研究，主要开展了超声测量、检测机器人运动学和动力学建模、误差补偿、灵敏度自动补偿和曲面构件超声检测一体化技术和轴棒类构件超声检测一体化技术的研究工作，进一步提高了复杂型面构件超声检测的效率和精度，并首次针对表面粗糙、圆柱度较差的金属轴棒类构件开发出了高效率的自动化检测设备。

In the end, errors of the confocal measurement system are thoroughly analyzed. The possible improvement of the system is presented.

最后，本文对共焦测量实验系统的误差进行了详细的分析，并提出了改善系统的方案和建议。

The high vertical resolution is achieved at a larger sampling distance when interpolation algorithm is adopted to reconstruct the 3D profile and the conicoid fitting technique is used to calibrate for the system error in the data processing.

在数据处理上，采用了内插值三维重构算法，以及二次曲面拟合的系统误差校正算法，可以在较大的采样间距下获取较高的测量精度。

Analysis of several cylindricity measurement models based on error separation technique.

基于误差分离技术的几种圆柱度测量模型分析。

However, no method of assessing roundness and cylindricity, which not only meets the definitions of the national standards but also are the rapid and concision properties possessed, has been found.

本文着眼于数字分度头的虚拟仪器化设计，以及轴类零件的形状误差测量，结合对传统数字分度头的改造项目，提出了一种虚拟光栅数显系统的原理。

The diffractive efficiency is measured and the errors are analyzed.

测量了菲涅耳透镜的衍射效率并分析产生误差的原因。

Based on the technical and design requirements of the system, this paper provides methods of angle calculation and the electrooptic signal acquisition techniques. According to the principles, we convert the waveform to corresponding impulses and use CPLD to implement the counting and direction discrimination of the count impulse. Furthermore, a new digital subdividing technique for...

根据系统的预期指标，给出了经纬仪角度测量值的计算及光电信号的采集方法；然后根据相应的方法，从硬件上实现了系统所需的角度信号的波形变换、脉冲信号的形成和CPLD辨向计数电路；在此基础上提出了软件细分技术，并分析了此细分方法带来的误差，达到了很高的细分精度。

Those are measured and calculated by computer such as voltage, current, frequency, active power, reactive power and power factor. The errorless of three-phase voltage and current is less than 0.5 percent.

用微机实现对电网电压、电流、频率、有功功率、无功功率、功率因数的测量和计算；计算高压配电线路得出的三相电压、三相电流有效值误差小于0.5％。

Methods:Explain the difference between power and vertex power from basic definitions of optics, and analyze the measuring principle and error of focimeter.

从光学的基础定义出发，阐述光焦度和顶焦度的差别，并对焦度计的测量原理和误差进行正确分析。

This paper introduces three kinds of the goniometric methods, makes comparison of the three kinds of goniometric methods, and puts forward some suggestions for reducing the errors and increasing the measurement accuracy .

介绍了3种测角方法，对这3种测角方法进行了比较，提出了若干减小误差、提高测量精度的建议。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。