- 更多网络例句与测量的相关的网络例句 [注:此内容来源于网络,仅供参考]
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The study has focused on: 1 The research background and the current state of the power measurement were analyzed systematically, and then wavelet-based power measurement algorithm was certified feasible for astable signals; 2 We developed a new method of RMS and power measurement based on Dmeyer wavelet. After that three other wavelet measurement approaches were compared with Dmeyer wavelet-based measurement approach. Then the impact on measurement errors of amplitude frequency property and energy leakage of wavelet filter banks were deeply researched, and some measures were proposed to reduce it; 3 We developed a new strategy of power measurement algorithm based on lifting wavelet, which had calculation advantage compared with the first wavelet, so that it was more suitable for the realization of hardware; 4 The running system of wavelet-based power measurement algorithm based on DSP was proposed, and then it was realized on ICETEK-VC5416-A EVM board; 5 Existing problems and the further research direction of wavelet-based power sub-band measurement algorithm was discussed.
本文对基于小波变换的功率测量算法展开深入的分析研究,主要内容有:1)系统地分析了功率分解测量的研究背景、国内外的研究现状,并从能量守恒的角度验证了小波功率分频带测量算法在非平稳信号条件下的可行性;2)首次提出了Dmeyer小波变换有效值与功率的测量方法,进而通过对该方法与3种已经提出的小波测量方法的对比分析,深入研究了小波滤波器组的幅频特性和能量泄漏特性对测量误差的影响,并针对电网谐波的特点提出了减小影响的相关措施;3)首次提出了二代小波功率测量算法,对比一代小波功率分频带测量算法,它大大减少了算法实现的运算量及内存的需求量,从而更适合于硬件的实时实现;4)提出了小波功率分频带测量算法的DSP实现方案,并在ICETEK-VC5416-A EVM板上进行了实现;5)探讨了小波功率分频带测量算法目前仍存在的问题,并提出了进一步的研究方向。
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This paper deriving the theory workinflection point in the static stage characteristics curve of small measurement range lineardimension measurement .by the way of high pressure and back pressure pneumaticmeasure and designed the parameter of the mainly and measure spray head, which are thekey component in the spray head-baffle pneumatic sensor .The different groups for themain-spray head and the measure spray head ,will effect the dynamic and static stagecharacteristic parameter .The author have done contrast experiment and optimizationdesign to test and verify the theory derivation whereby made the rang of show valve ofpneumatic measure system measure range up to 40 μ m, the sensitivity up to 100mv/μ m,resolution up to 0.05 μm, the uncertainly of measure is less than 0.02 μm, satisfaction ofrequirement of groups the carboy hatch thickness size precise measure of soft shims.
对高压背压式气动测量用于小量程线性尺寸测量的静态特性曲线的理论工作拐点进行了推导,对气动测量系统中的喷嘴-挡板型气动传感器中的关键部件——主喷嘴和测量喷嘴的参数进行了理论设计,对主喷嘴和测量喷嘴的不同组合,将影响测量系统静、动态特性指标的喷嘴参数进行了对比实验和优化设计,并通过实验验证了理论推导,从而使气动测量系统量程的示值范围达到40μm,灵敏度达到100mv/μm,分辨率达到0.05μm,测量不确定度小于0.2μm,满足了压缩机缸盖软体垫片厚度尺寸精密测量分组的要求。
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To improve the machining efficiency and precision of convex screw s,a new method was put forward for inner whirlwind NC enveloping milling of screw curved surface.
使用轴承测量仪器完成对滚子球基面凸度测量、凸形的判定,确定了测量方法,提高测量的准确性及测量效率。
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Main contents and conclusions are: 1 The ionization current was measured continuously by a charge-integration method with a computer after the introduction of radon into the chamber.
主要内容及结论:1充氡后利用计算机连续进行电离电流累积测量,得到了精细的电流随时间的变化曲线,可清楚看出氡及其子体的生成衰变造成的电离电流的生长—稳定—衰减过程,与理论计算值进行了比较,由电离电流衰减速度的变化得出氡吸附作用的影响,并测量到电离室冲洗后氡的反扩散现象;2由已知活度的标准源定出相对测量的刻度系数K值,K=24.62 Bq/pA,对同一个监测源以半年为周期进行多次测量后得出稳定性符合要求;3通过测量电离电流和气压的关系曲线以及不同气压下的饱和曲线,确定了常规的工作条件;4测量了盐酸清洗电离室内表面降低本底的效果;5不确定度分析表明相对测氡的扩展不确定度(k=2)小于5%,由本底涨落得出探测下限为0.5 Bq;6理论上对壁损失修正进行了计算,实验上保持电离室工作在饱和区的情况下,测量了不同气压下电离电流的变化,从中得出了壁损失随气压变化的规律,可以看出,电离电流的实测值和计算值随气压变化规律基本一致;当气压大于125 kPa时,端效应等其它因素造成的影响不大于2%,因而在此工作条件下,测量电离电流后通过计算修正壁损失可以实现近似的绝对测氡,提出了进一步提高绝对测量准确度的方法。
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Chapter four (application of chaos in measurement field): In this chapter firstly the sensitivity of initial values and parameters that chaos can be used in the measurement field has been analyzed quantitatively, on this basis, the necessary conditions of chaotic system that can be used in measurement are concluded and presented; then the mechanism of measurement implemented by subsection linear map chaotic system, the coordinating relationship between chaotic output signal and the values being measured, and the precision of system measurement are further analyzed quantitatively.
第四章(混沌在测量领域中的应用)首先对混沌可用于测量领域的初值敏性和参数敏感性进行了定性分析,在此基础上,归纳并提出了可用于测量的混沌系统应具有的必要条件;定量地分析了分段线性映射混沌系统实现信号测量的基本原理、输出混沌序列与被测量间的数值对应关系及系统的测量精度等问题;并以DSP为核心设计了混沌型电压测量系统;其次提出了混沌参数敏感性用于测量的基本思路,并对此进行了计算机仿真及原理性实验电路设计。
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Chapter four (application of chaos in measurement field): In this chapter firstly the sensitivity of initial values and parameters that chaos can be used in the measurement field has been analyzed quantitatively, on this basis, the necessary conditions of chaotic system that can be used in measurement are concluded and presented; then the mechanism of measurement implemented by subsection linear map chaotic system, the coordinating relationship between chaotic output signal and the values being measured , and the precision of system measurement are further analyzed quantitatively . And a chaotic voltage measurement system using DSP is designed. Secondly a basic thought that thesensitivity of chaotic parameters can be used in measurement is presented and simulated. Its theoretical testing circuits are designed.
第四章(混沌在测量领域中的应用)首先对混沌可用于测量领域的初值敏性和参数敏感性进行了定性分析,在此基础上,归纳并提出了可用于测量的混沌系统应具有的必要条件;定量地分析了分段线性映射混沌系统实现信号测量的基本原理、输出混沌序列与被测量间的数值对应关系及系统的测量精度等问题;并以DSP为核心设计了混沌型电压测量系统;其次提出了混沌参数敏感性用于测量的基本思路,并对此进行了计算机仿真及原理性实验电路设计。
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Based on the dual-beam interference principle and white light interference feature, this dissertation designs the SWLI surface 3D topography measuring system and analyzes the principle and characters different from that of traditional monochromatic light interference. According to different descriptions of the white light interference feature, the optimal interference point extracting algorithms are classified, analyzed and compared in detail. In the light of the design rule of improving measuring precision and speed simultaneously, two new types of algorithms, named Feature Matching algorithm and Intensity Contrast Moving Window algorithm, are designed to acquire good results according to practical conditions.
基于双光束干涉原理及白光干涉特性,本文设计了扫描白光干涉法表面三维形貌测量系统,分析了该方法区别于传统单色光干涉测量的测量原理及特点,根据对白光干涉特征不同的描述方式对最佳干涉点提取算法进行了分类、分析与比较,并在提高测量精度与测量速度设计原则的指导下,根据测量系统的实际条件设计了两种新的算法:特征匹配法和对比度移窗法,在实际测量中达到了比较好的测量效果。
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The helicopter blade running elevation measurement is the kernel part of helicopter blade dynamic balance experimental platform system, also is the main part of this dissertation.
论文从国内外对旋翼共锥度的测量方法出发,对几种测量方法进行比较分析,最后确定采用激光测量的方法。对激光测量的测量原理和测量误差进行了分析,对系统关键参数进行了计算。
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Three methods about measuring transmissivity of IR smoke screen were introduced in this paper.
介绍了红外烟幕透过率测量的三种方法。重点分析了影响多点测量法、逐点测量法测量精度的因素,并对其测量精度进行了比较,提出了三种测量法在使用时应注意的问题
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This text puts forward a new method of the direct polygon measuring side traverse survey underground, and deals with how to use it to survey underground.
提出了井下导线测量的新方法,即&直伸多边形量边导线测量法&,并具体介绍了如何运用&直伸多边形量边导线测量法&进行井下导线测量。
- 更多网络解释与测量的相关的网络解释 [注:此内容来源于网络,仅供参考]
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gaugeable:可计量的/可测量的
gauffer /加绉褶/ | gaugeable /可计量的/可测量的/ | gauger /测量者/检量官/收税官/
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gaugeable:可度量的; 可测量的 (形)
gauge 标准度量, 计量器 (名) | gaugeable 可度量的; 可测量的 (形) | gauger 测量者; 检量官 (名)
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pyrometer:高温计(系水银柱温度计无法测量的一种高温测量计)
pyroheliometer 太阳热量计 | pyrometer 高温计(系水银柱温度计无法测量的一种高温测量计) | pyrometry 高温测量法
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Unmeasurable:无边际的 不可测量的 不能测量
unmatureddebts 未到期债务 | unmeasurable 无边际的 不可测量的 不能测量 | unmeasured 未测量的
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unmeasured:未测量的
unmeasurable 无边际的 不可测量的 不能测量 | unmeasured 未测量的 | unmeasuredloss 未测定损失
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craniometrical:头盖测量的 (形)
craniometer 头盖测量器 (名) | craniometrical 头盖测量的 (形) | craniometry 头盖测量法; 头颅测量法 (名)
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gravimetric:重力测量的
gravimetric tank 称重罐 | gravimetric 重力测量的 | gravimetry 重力测量
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hydrographic:水文的水道测量的
hydrographic 水路的 | hydrographic 水文的水道测量的 | Hydrographical Ship 测量船
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mensurable:可测量的
mensurability 可测量 | mensurable 可测量的 | mensural 定律的
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mensurable:可测量的,定量的,定律的
immensity 优美的 | mensurable 可测量的,定量的,定律的 | mensuration 测定,测量,测定法