测风精度,accuracy of measuring wind
1)accuracy of measuring wind测风精度
英文短句/例句
1.Improvement of Accuracy and Noise Suppressing Performance of Anemometer Based on Twice Correlation Method用二次相关提高超声测风精度和噪声抑制性能
2.Value at risk based on genetic algorithm and BHHH algorithm:an empirical study of Chinese Stock Markets;GA在改善证券市场风险测量精度中的实证研究
3.The Accuracy Research of Doppler Wind Lidar Based on Edge Technique基于边缘技术多普勒测风雷达的精度研究
4.Design of Ultrasonic Anemometer Measurement System with High Sensitivity Based on C8051F020一种高精度超声波风速风向测量系统设计与研究
5.Influence of Resistor Thermal Effect in Wind Measurement Using Micro Solid State Drag Force Wind Sensor电阻热效应对力式微固态测风传感器测量精度的影响
6.Determination of Eugenol in Clove oil and Essential Balm by UV Spectrophotometry紫外分光光度法测定丁香油和风油精中丁香酚的含量
7.precision of ranging for laser range finder激光测距机测距精度
8.The Risk Measures Based on Minkowski Gauge;基于Minkowski测度的风险度量
9.As laboratory instruments, they may be made to give excellent results; and they are particularly well suited to the measurement of low air speeds.作为实验用的测试仪器，这类风速计可制作得很精确。而且，它们特别适合于测定低气流速度。
10.measured the line with pinpoint accuracy.以细微的精度测量线条
11.high accuracy air flow measuring system高精度气流测试系统
12.accuracy(trueness and precision) of measurement methods and results-part 3:intermediate measures of the precision of a standard measurement method测量方法和测量结果的精确性(精度和精密度)-第3部分;标准测量方法的精密度的间歇性测量
13.A Research on Pricing Risk Estimate and Management of Life Insurance Getting Flexible Rate with Asset Share Pricing Method;寿险公司精算定价风险测度与管理研究—用资产份额定价法制定弹性费率
14.Microcomputer Data Acquisition and Processing System for Measuring Precision Goniometer检测精密测角仪精度的微机数据采集处理系统
15.The accuracy of the calibration factor directly influences the measuring accuracy.因此,机械标定系数的精度直接影响测试精度。
16.The improvement of precision and accuracy of the determination of gold in copper concentrates提高铜精矿中金测定的精密度和准确度
17.Accuracy Analysis on Contact Anemometer Self-Recording Records Digitization Processing System电接风向风速仪自记记录数字化处理精度分析
18.An extremely accurate micrometer.超测微计一种精度极高的测微计
相关短句/例句
measuring accuracy测量精度
1.The factors affecting themeasuring accuracy of natural gamma while drilling.;影响随钻自然伽马测量精度的因素
2.Analysis and Improvement of Command Factor Measuring Accuracy for a Missile;一种导弹指令系数测量精度的分析与提高
3.The temperature effect on themeasuring accuracy of a magnetostrictive liquid lever sensor;温度对磁致伸缩液位传感器测量精度的影响
3)measurement accuracy测量精度
1.Improvement ofmeasurement accuracy in testing the residual stresses in auto-frettagea tube;用镗削法提高自增强管残余应力测量精度
2.Influence of background scattering onmeasurement accuracy of laser radar cross section;背景散射对LRCS测量精度的影响分析
3.The factors of impacting the X-ray thicknessmeasurement accuracy and methods to maintain影响X射线测厚仪测量精度的因素及维护方法
4)measure precision测量精度
1.Study onmeasure precision of γ-ray level meter;γ射线料位计测量精度的研究和设计
2.The size error of internal measure-hand in number-showing calipers and some factors to affect itsmeasure precision were analysed and some suggestions were put forward to perfect further standard and checking procedures.对数显卡尺内测量爪尺寸偏差及影响测量精度诸因素进行了分析，对完善标准和检定规程提出建议。
3.In accordance with the affection of transformation quantity of measured force on its precision,the improving measures were put forward,then themeasure precision was raised,the inspection request of fine products was satisfied.针对仪表测力及测力变化对其精度的影响,提出改进措施,从而提高了仪表的测量精度,延长了其使用寿命,满足了检测精密产品的要求。
5)precision measurement精度检测
1.This method can be widely applied into measuring miller cutting disc of the LSAW pipe production unit,SSAW pipe production unit,ERW pipe production unit,consequently solved the problem ofprecision measurement blade position of miller cutting disc,and this method is simple and easy to operate.该检测方法可普遍应用于螺旋与直缝埋弧焊管、ERW焊管等机组的铣边机刀盘检测,从而解决了铣边机铣刀盘刀片定位精度检测的难题,且精度高,易于操作。
6)measuring precision测量精度
1.Study on influence of refrigerant -oil mixture on compressor capacitymeasuring precision in calorimeter;量热器法系统含油量对压缩机冷量测量精度影响的研究
2.The Researching for Improving Measuring Precision of Fiber-Optic Backscattering Method;提高光纤背向散射法测量精度的方法研究
3.In the long using process,the precision of the dynamic measurement system will drop away inevitably,so themeasuring precision will decline gradually,which directly influences the precision and dependability of the measuring resultant.在长期的使用过程中动态测量系统的测量精度不可避免会逐渐降低,将直接影响测量结果的精度和可靠性,掌握动态测量系统的精度损失规律,可以采取有效的措施来提高测量精度。
延伸阅读
雷达测量精度雷达测量正确性或误差大小的量度。测量误差，一般用测量值与真实值之差的平方的统计期望值（均方误差）或平方根（均方根误差）来表示。雷达所测量的目标参数通常包括目标距离(回波时延)、距离变化率（多普勒频移）、方位角和俯仰角（回波到达角）等。现代雷达还能测量目标尺寸、形状和其他参数。测量精度的根本限制因素是噪声。根据参量估计理论可以求出雷达测量的极限精度，并把它作为设计和评价雷达的重要依据之一。雷达回波由信号s(t-T)加噪声n(t)组成，式中T是回波信号的时延。时延T的估计值的均方根误差的下限为 式中分别为信号能量和有效带宽;N0为噪声的功率谱密度(即单位带宽内的噪声功率)；s(f)为s(t)的傅里叶变换。多普勒频移的估计值的均方根误差的下限为式中为信号的有效时宽。对于任意波形总有。因此这说明,只要有足够大的信噪比E/N0并选择βα足够大的雷达信号，测量时延（距离）和频移（速度）均可获得所希望的精确程度。由于天线方向图G(θ)和天线口径面上场的幅度分布A(x)之间也近似有傅里叶变换的关系，可以同样求得角度估值的均方根误差的下限为式中γ称为有效口径宽度；λ为雷达波长。因此，雷达测量精度与雷达波形有密切关系。
