调整器

The excellent agreements between simulated and measured results prove the accuracy of the established circuit model. Moreover, the varactor was added to the resonator to adjust its resonant frequency. As expected, the reactance introduced by the varactor indeed affects the net inductance and capacitance obviously. It is noted that, not only the shift with the center frequency, the inductive or capacitive of the reactance can also provide a parameter to switch its frequency toward the two directions away from the one without varactor. As a consequence, a wideband tunable band-pass filter is achieved. Although the bad quality factor with the diode strongly increases the insertion loss, this concept was proved to be available for effectively tuning the center frequency of such a class of band-pass filter.

另外，在共振器上的varactor是用来调整共振器的共振频率，如预期的，由varactor所造成的电抗确实的影响到共振器的总电感和电容值，值得一提的是，不仅滤波器的中心频率可以被改变，这电抗是电感性或是电容性也将决定滤波器的中心频率将大於或小於未加varactor时滤波器的中心频率，利用这个结果，我们也实现了一个宽的可调频率带通滤波器，虽然不理想之二极体的Q值增加了滤波器的介入损失，但这原理是被证明可有效的用於调变带通滤波器的中心频率。

Selection of drum gear coupling tooth gear coupling, gear coupling crown gear axis to allow the two larger angular displacement, load-bearing capacity is relatively strong, and easy to install and adjust.

齿轮联轴器选用鼓形齿齿轮联轴器，鼓形齿齿轮联轴器允许两轴线有较大角位移，相对承载能力较强，并且易于安装调整。

An input phase voltage is divided into a main range and a transition range in which new P, M, N conditions and PM, NP, MN transition conditions are defined, some null vector is selected and the condition combination sequence of bidirectional power switches are adjusted in each modulation period to realize the safe, reliable and rapid commutation and the stable operation of the matrix converter.

本发明属于矩阵变换器控制技术，为一种用于矩阵变换器的控制方法，通过把输入相电压划分为主区间和过渡区间、在过渡区间定义新的P、M、N状态和PM、NP、MN暂态以及在每个调制周期内选择特定的零矢量并调整双向功率开关状态组合顺序，实现矩阵变换器安全、可靠、快速换流和稳定运行。

A single-loop 5-order 1-bit quantization structure is chosen along with OSR of 64, first sampling capacitor of 6pF, clock frequency of 128MHz to achieve 16-bit resolution and 1MHz base-bandwidth.

在系统设计方面，选用前馈结构，它有助于实现调制器的稳定和降低第一级积分器的线性设计要求；同时通过系数调整把第一级积分器的摆幅降下来，有利于低电压运放的设计。

On the basis of investigating the sound field of a plane piston transducer and the relations between sound field and radiation force, by settling four plane piston transducers driven at the same frequency at each corner of a regular triangular pyramid with their sound-beam axes crossing at the center of the pyramid, this technique uses ultrasonic wave synthetic theory to acquire a three-dimensional ultrasonic standing wave field. The micro-component can be captured, transported, released in the range of space by adjusting the phase of the transducers.

在研究单个圆形平面活塞换能器声场分布以及声场和辐射力关系的基础上，将以相同频率驱动的4个平面活塞换能器呈正四面体放置，利用声波合成原理获得三维超声驻波场，通过调整各个换能器发射信号相位之间的关系实现对微构件在空间范围内的俘获、移动、释放等操纵。

Company is mainly engaged in development, manufacturing, sales instruments and meters, electric wire and cable, cable tray, fiber optic cable, proprietary Chinese medicines and medical equipment and other products, after years of product structure adjustment, and has formed instrumentation including thermal resistance, thermocouple, bimetal thermometer , temperature transmitter, digital meters, pressure gauges, pressure transmitter, level gauge, level transmitter, and temperature, pressure, flow, level series fieldbus instrumentation products; wires and cables including control cables , computer cables, cross-linked power cable, ACSR, fire-retardant cables, fire-resistant cables, marine cables, compensation cables, silicon rubber cables, high temperature cables, the security cable, low smoke and low halogen low smoke zero halogen cables, overhead power lines and other wires, such as the installation of cloth series wire and cable products; communications center beam tube fiber optic cable, including fiber optic cable, twisted layer type optical cable, ribbon cable, ADSS fiber optic cable and wiring products; Chinese medicine including granules, granules, capsules and medical Instruments such as the pattern of diversification.

公司主要从事开发、制造、销售仪器仪表、电线电缆、电缆桥架、光纤光缆、中成药和医疗器械等产品，经过多年的产品结构调整，已形成仪表包括热电阻、热电偶、双金属温度计、温度变送器、数显仪表、压力表、压力变送器、液位计、液位变送器和温度、压力、流量、液位现场总线等系列仪器仪表产品；电线电缆包括控制电缆、计算机电缆、交联电力电缆、钢芯铝绞线、阻燃电缆、耐火电缆、船用电缆、补偿电缆、硅橡胶电缆、高温电缆、本安电缆、低烟低卤及低烟无卤电缆、架空电缆和其它各种安装布电线等系列电线电缆产品；通信光缆包括中心束管光缆、层绞式光缆、带状光缆、ADSS光缆及其配线系列产品；医药包括冲剂、颗粒、胶囊和医疗器械等多元化经营格局。

Software Description: About Easy Label Designer, This WYSWYG label designer software offers an editor's ruler, an align line, a grid can assist you to set element's position, and you can use object inspector to adjust all label element's property.

Easy Label Designer 这款所见即所得标签设计器软件提供一个编辑器规则，一个排列线，一个可以帮助你设置组件位置的向导，并且可以使用对象检查器调整所有标签组件的属性。

The first part of this paper is an introduction to the basic principles and functions about the Scaler chip. The following part describes the design of structures for this Scaler chip.

本文首先介绍定标器的功能和工作原理，然后给出定标器芯片的结构设计，最后对定标器芯片的前端逻辑验证过程加以说明，包括提出验证方案、设计测试PCB以及根据验证结果的反馈调整设计。

Whole machine profile modeling of whole type floating profile modeling mechanism,side deep fertilizer opener of obtuse angle chisel shape,precision seed metering device of combined internal cell bore,and covering soil part of front back separating character are applied in the machine,...

该机采用整体式浮动仿形机构整机仿形，钝角凿形侧深施肥开沟器，组合内窝孔式精密排种器，前后分置式八字型覆土器，其原理新颖、传动可靠、使用调整方便，既可垄播、平播，又可按传统行距和大垄双行播种，播种质量好。

So we designed a adaptive synchronizing controller based on hereinbefore hardware environment: first a small magnitude reference signal r is outputted to system through the signal card (to ensure that the vibrating system works in a linear state), and this signal is sent to the moving coil of vibrator through the power amplifier, so vibration is produced through electromagnetic induction. Secondly the vibration signal can feedback to the data acquiring card in the servo system through the acceleration sensor on the Vibroseis reactor M〓 and the base-plate M〓, then the computer can get the current vibrating state y〓 of the coil of vibrator according to the feedback information from the data acquiring card, and give a real time comparing between the current state y〓 and the reference output y〓 of the set-in reference model with current reference input being r , then regulates the correlative controlling parameters according to the error e〓=y〓-y〓 till y〓→y〓, finally normal signal sweeping begins with a certain phase fixed. Meanwhile a synchronization signal for seismic signal record is sent to seismograph from synchronization signal outputting component in the Vibroseis system to perform the controlling process of synchronization of sweeping phases.

为此，我们基于以上的硬件环境设计了一个自适应同步控制器：首先通过信号发生卡对系统输出小幅度的参考信号r(从而保证振动系统工作处于线性状态)，信号通过前置放大器、功率放大器等送到激震器动圈，并通过电磁感应产生振动，振动信号通过可控震源激震器反应块M〓和基板M〓上的加速度传感器反馈给伺服系统中的数据采集卡，工控计算机根据采集卡的反馈信息，获取当前激震器动圈的振动状态y〓，并实时地将该状态与内置的参考模型在当前参考输入r下的参考输出y〓进行辨识，再将两者输出误差e〓＝y〓-y〓对系统的有关控制参数进行调整，直至y〓→y〓，最后在经过某一固定的相位后，开始信号的正常扫描过程，与此同时，由可控震源系统的同步信号输出部件向地震仪送出一地震信号记录同步信号，进而完成扫描相位同步控制过程。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。