wft

The Study of Multi-component WFT and Application in Automobile Road Experiment

多分力车轮力传感器研究及其在汽车道路试验中的应用

FORMATION TESTING TECHNIQUE The Technology about the New Type WFT Implement

新一代电缆地层测试技术

Fractal Interpretation Method of Wireline Formation Testing ( WFT ) Data

电缆地层测试资料分形解释方法研究

Improvement in permeability computation and pressure effect of WFT

WFT的压力影响因素分析及渗透率计算方法的改进

Research on tire dynamic property using WFT

基于车轮多维力传感器的轮胎动特性研究

It is important to the numerical simulation of WFT for the instrument design and data analysis of logging research .

电缆地层测试器的数值模拟是仪器研制和测井解释方法研究的基础。

Cross - coupling matrix of WFT was computed , and characteristics of cross talk was analyzed .

对WFT的耦合率矩阵进行了计算，并进行了耦合分析。

Two-zone Composite Formation Percolation Model of Wireline Formation Testing ( WFT ) with Anisotropy

各向异性两区复合地层电缆地层测试渗流模型

A two-dimensional phase unwrapping approach based on two-dimensional windowed Fourier transform ( WFT ) is proposed .

提出了一种基于二维短时傅里叶变换的干涉相位图解缠方法。

The results are analyzed and discussed . With the results , we can conclude that WFT based test system can be useful in the ABS performance test .

通过对结果的分析，可以认为基于多维轮力测量技术构建的试验系统能够满足ABS性能测试的要求。

Multi-dimensional forces and torques can be measured by multi-axes wheel force transducer ( WFT ) in automobile road experiment .

在汽车道路试验中，通过多维车轮力传感器（WFT）可以测量每个轮所受的各维力和力矩。

Six-axis Wheel Force Transducer ( WFT ), the structure of which is very specific and complex , is the key part of automobile road experiment system .

六维轮力传感器是汽车道路试验系统的核心部件，其结构特殊、复杂。

The calibration results were processed in this paper . Automobile road experiment data acquiring and processing system based on WFT was developed , and experiments were carried out to analyze system applications .

对WFT标定结果进行处理，在WFT研制的基础上开发汽车道路数据采集和处理系统，并进行实车道路试验对系统的有关应用进行了分析。

The key technology of the WFT consists of the reliable and accurate transfer of signal and power , the signal decoupling , the requirement of intension and space , etc.

轮力传感器研制的关键技术包括可靠且准确的信号和能量传输、信号的解耦、强度和结构安装要求等。

As the testing time is relatively short , WFT pumping Volume seldom breaks down mud contamination , capillary force in the invaded zone impacts testing pressure data .

针对电缆地层测试（WFT）在短时间内抽吸地层流体无法解除侵入带的泥浆污染，泥浆侵入带形成的毛管力对测试压力数据有很大的影响。

Wavelet fractal technology ( WFT ) is proposed according to the unity that possesses multiscale decompositions and self similarity in both wavelet transform and fractal theory .

根据小波变换和分形理论在多尺度分析和自相似本质上的一致性，提出了小波分形技术。

The coupling between each component of the wheel force transducer ( WFT ), is studied systematically in terms of both the calibration method and the static decoupling methods .

在课题组车轮力传感器已有研究成果的基础上，从传感器标定方法和静态维间解耦角度深入研究了车轮力传感器维间耦合现象。

However , the time-frequency analysis methods such as windowed Fourier transform ( WFT ), Wigner-Ville distribution ( WVD ) and wavelet transform have their own limitations .

但是常用的时频分析方法如窗口傅里叶变换（WindowedFouriertransform）、WVD（Wigner-VilleDistribution）、小波变换等都有各自的局限性。

The static couple of multi-dimension wheel force transducer ( WFT ) is one major factor of limiting its measuring precision , and the couple of WFT is mainly linearity .

传感器的静态耦合是制约多维车轮力传感器（WFT）测量精度的一个主要因素，WFT的耦合主要为线性耦合。

At present the wireline formation tester ( WFT ) interpretation or math model often estimates permeability with pressure margin and pressure build-up without considering the effect of flow line storage on the pressure curves .

目前的电缆地层测试器的解释模型没有考虑管线存储效应对压力曲线的影响，因此，只能利用压降和压力恢复过程计算渗透率。

The western flower thrips ( WFT ), Frankliniella occidentalis ( Pergande ), is a key pest of vegetable , fruit and ornamental crops .

西花蓟马Frankliniellaoccidentalis是蔬菜、果树和观赏植物上的主要害虫。

Referred in detail on the research development , design principle , performance evaluation , error analysis etc , of the WFT . The concrete application of the WFT in motor vehicle road test is brought forth in the end .

详细介绍了轮力传感器的研究进展、设计原理、性能评价和误差分析等，最后对其在汽车道路试验中的具体应用做了介绍。

Using the Wisconsin Card Test ( WCST ), verbal fluency test ( WFT ) evaluable patients executive function of damage , the Chinese Aphasia Examination Scale ( CAES ) to evaluate patients with language impaired .

使用威斯康星卡片分类测验（WCST）、词语流畅性测验（WFT）评估患者执行功能受损情况、使用汉语失语症检查量表（CAES）评估患者语言功能受损情况。

Considering the difficulty of instantaneous reactive power theory in the detection of single harmonic , and the shortcomings of traditional Fourier transform in the non-stationary signal , detecting methods of single harmonic amplitude and phase information based on STFT and WFT were discussed .

考虑到瞬时无功理论在检测单次谐波上的困难、传统傅里叶变换检测非平稳信号的不足，研究了用短时傅里叶变换和小波变换检测单次谐波幅值和相位信息的方法。

At the same time , WFT technology helps discover the abnormal pressure formation , and has better advantage in log operation of the high pressure fresh water-flooded reservoirs and partial flooded reservoirs where the resistivity is higher and difficult to be identified by conventional log data .

地层测试技术还可以很好地发现压力异常层位，在常规测井资料难以识别的电阻率较高的高压淡水水淹层、储层部分层位水淹现象等方面有良好的应用效果。

At present , the fluid densities of the area can be determined , the fluid properties and gas-oil-water interfaces assessed based on the pressure gradient when WFT data is applied to the water-flooded reservoir interpretation , thereby identifying the water-flooded reservoir with bottom water rises .

用电缆式地层测试资料解释水淹层，根据压力梯度的研究确定储层流体的密度，判断储层流体的性质以及推断气、油、水的接触界面，从而识别底水上升水淹层。

In this paper we apply the view of multichannel analysis to describe the definition and properties of both the WFT and the IWT , then we discuss the drawbacks of the WFT . Finally the IWT is introduced and compared with the WFT .

用多频道分析的观点，综述了窗口傅里叶变换（WFT）与积分小波变换（IWT）的定义和性质，并分别研讨了它们的优缺点。