控线

虚拟仪器在集控线实验台中的应用

The centralized control line testing system based on virtual instrument

主控线的放样测量；

Faying out main control line ;

介绍了相控线阵声波测井辐射器的工作原理，根据辐射器各个阵元的性能参数设计了两种供实验使用的激励信号源，即5通道Burst信号源和4通道脉冲信号源。

The operating mechanism of the phased array acoustic logging transmitter was discussed . Based on the performance parameter of the element of the phased array transmitter , two kinds of exciting signal sources were designed which were 5-channel Burst signal source and 4-channel impulse signal source .

相控线阵声波测井波形特征研究

Study of waveform characteristics of the Phased Array in Acoustic Well-Logging

相控线阵声波测井辐射器指向性影响因素研究

On Influencing Factors of the Directivity of Phased Array Transmitter in Acoustic Log

相控线阵声波辐射器在声波测井中应用的可行性分析

Feasibility of application of phased array in acoustic well-logging

相控线阵声源在套管井中的应用

Application of linear phased array transmitter in cased boreholes

超声相控线阵探头线列参数对波束指向性的影响

The Influence of Dimensional Parameters of Linear Phased Array Transducer on Beam Directivity

充液井孔中的相控线阵声波辐射器在地层中产生的声场

Acoustic field in formation generated by linear phased array transmitters in fluid-filled boreholes

电火花光电控线切割机床

Electrosparking photo-electric tracking wire-cutting machine

本文通过实验模拟的方法研究了声波测并相控线阵声波辐射器的指向性测量方法。

The paper studied the measurement method for directivity of phased-array acoustic transmitter in acoustic log by experimental modeling method .

通过利用改进的矩阵稳定技术，解决了在求解束控线阵的束控系数时最小二乘解的稳定性和实用性问题。

Via the computer simulation , we have solved the problem of stable and practical shading coefficients of shaded line array .

随着相控线阵工作阵元个数的增加，在近似满足同相位叠加时，纵、横波振幅得到明显的加强。

By increasing the number of the elements , the amplitudes of compressional wave and shear wave are enhanced in the generation condition .

因此本研究从晶片和楔块两方面对超声相控线阵换能器的几何优化设计进行了初步研究和探讨。

Therefore , a primary research and discuss on optimized design for geometry parameters of piezocrystals and wedges in ULPA were taken in this study .

通过数值计算对比分析了均匀幅度加权和不同幅加权条件下相控线阵声波辐射器的指向性以及辐射声束角宽的差异。

Directivity and main lobe width were compared for the linear phased array acoustic transmitters with amplitude weighting and non-amplitude weighting using numerical examples . angle .

相控线阵的使用可明显地改善声波测井的测量质量。本文工作为相控线阵声波辐射器在石油勘探中的应用提供了理论依据。

Therefore , linear phased array can he used to improve quality of well-logging data and enhance both signal-to-noise ratio and exploring capacity of acoustic well-logging radically .

随着声源频率降低、阵元间距减小、阵元个数减少以及适当的幅度加权可以使相控线阵辐射声束主瓣角不断变宽。

By lowering the acoustic wave frequency , reducing inter-element spacing , decreasing the number of the elements or using weighted phased array , main radiation lobe of phased array can be widened gradually .

分别把自行制作的小型相控线阵声波辐射器和水听器置于充液微型铝质和混凝土模型井中进行了声波测井模型实验。

Then , assigning the phased arrays as acoustic transmitters and hydrophone as receiver , the small scale acoustic well-logging simulations are carried out both on an aluminium model well and on a concrete model well .

在声波测井工程中使用相控线阵声波辐射器可以使声波向着接收探头一侧辐射，从而提高声波测井的信噪比和探测距离。

In the acoustic well logging , using linear phased array acoustic transmitters can make the acoustic energy radiate to the side of receivers , which can increase the S / N ratio and the depth of investigation .

他们每一个都有特殊的方式来控线，又正因为他们特殊的方式，如果克星在那，他们就会被压的很惨。

Each one of them got specific way to control a lane , and because of those specific ways they can either destroy mid if the hero they brutally counter is sent there , or they can get destroyed as well .

应用有限元法研究了充液井孔中的相控线阵声波辐射器在井外地层中产生的声场，探讨了增强声源向地层的某一特定方向辐射的声波能量的方法。

Acoustic field in formation generated by linear phased array transmitters in fluid-filled boreholes , as well as the method to intensify the acoustic energy radiated from the source in the borehole to the formation , is investigated using the finite element method ( FEM ) .

利用有限元数值模拟研究了由点源组成的相控线阵声波测井辐射器对充液井孔中各种波动模式波的影响，重点分析了阵元个数对各种波动模式波响应幅度的影响。

Effects of the acoustic logging transmitter of linear phased array composed of point source on waves of various modes in fluid-filled borehole were studied by finite element method ( FEM ) . And the influence of element number of array on wave amplitude was mainly analyzed .

介绍了一种区别于锁相环（PLL）和基于压控延迟线（VCDL）的延时锁定环（DLL）、全部由纯数字电路实现的DLL电路。

This paper presents a delay locked loop ( DLL ) circuit that can be implemented with fully digital circuits . It is different from phase locked loops ( PLL ) and delay locked loop based on voltage controlled delay line ( VCDL ) .

基于传热学的基本理论，以高线斯太尔摩控冷线的水冷却段为研究对象，建立了实体模型并确定了边界条件；

According to the basic theory of heat transfer , taking the high speed wire Stelmor water cooling process as the research object , a physical model is built and the border conditions are explained ;

和传统的锁相环相比，延迟锁相环内采用了压控延迟线，其时钟抖动更低，在系统稳定性、增益、带宽方面具有无可比拟的优势，因而具有更广泛的应用前景。

Compared to Phase lock loop , it has low jitter accumulation with the Voltage controlled delay line , so it has inimitable superiority in system stability , gain and bandwidth . For this reason , it is widely used .

压控延迟线由多个延迟单元组成，每个延迟单元对输入信号产生一个相同的延时，延迟时间由电荷泵输出的控制电压决定，控制电压的不同将会产生不同的延迟。

The VCDL is consisted of many delay cells and each one gets a same delay time which controlled by the output of PD . The difference of control voltage will get difference delay time . The total delay time in the delay line is one cycle .

在系统中，进行了嵌入式WEB智能家居中控和电力线节点设备控制器的软硬件设计、制作和调试。

In the system , I designed and adjusted both the hardware and software in the Embedded-WEB IH Center Unit and the equipment controller of the PLC interface .

《物权法》实施背景下基于权利界定的控规五线控制探讨

Discussion on " Five Lines in Regulatory Plan " Control from Right Viewpoint Based on Property Right Law Implementation

分析结果表明，捕控对象的线度和离轴距离是影响归轴力的主要因素。

As indicated by results of analysis , the dimension of trapped object and its distance away from axis are the principal factors influencing axial inclination force .

根据改善方案，在隧道进口前进行施工，将控速边缘线按照设计要求铺设好。在施工完成后对隧道进口路段的速度、轨迹、驾驶员视觉特征等进行调查分析。

According to the improvement requirements , the speed control edge is put up at the tunnel entrance . After the construction , investigation on travel speed , driving track and drivers ' visual characteristics is conducted .