查询词典 modulator

For accelerating the development in China, Invensys Controls has set up an APAC headquarters in Shanghai. At the same time, there are three wholly-owned subsidiaries under Invensys Controls: Ranco Changzhou, Invensys Controls Qingdao and Invensys Controls Weihai. They are the professional manufacturers for Air Condition Revising Valve, Temperature Controller for Refrigeration, Defrost Timer and Electronics Controller; Power Modulator for Kitchen; Electronical and Mechanical Controller for Cloth Washer and Dish Washer, Water Valve, Electronics Controller and Pressure Switch, etc.

为推动中国市场的发展，英维思控制系统将亚太区的总部设在上海，同时，控制系统中国区下属的三家独资企业：常州兰柯四通阀有限公司，英维思控制器有限公司和威海英维思控制器有限公司，分别专业化生产空调用四通阀；冰箱、冰柜用温控器、化霜定时器和电子控制器；厨具用能量调节器；洗衣机、洗碗机用机电程控器、水阀、电子控制器和压力开关等产品。

In the last new years , as the demands of wireless communication system grows rapidly , the bands of microwave frequency had been saturated with various communication applications . To achieve wider spectrum for high-speed and high-capacity transmission , bands of millimeter-wave frequency are the solution of this problem . The advantage of MMW wireless communication systems is wider bandwidth comparing with microwave communication systems . To utilize the spectrum efficiently , many methods of complexly digital modulation is proposed . The more complex modulation , the higher linearity is required , and more various phase of signals are required to accomplish process of modulation . Therefore high-linearity and quadrature-phase modulator and demodulator are the emphasis of this thesis . For high level of integration , high performance and low cost , this chip is fabricated by the complementary oxide semi-conductor 0.13um process . A compact size of direct down-conversion and direct up conversion circuits will be presented in this thesis .

近年来随著无线通讯产业的蓬勃发展，微波频带已经趋近於饱和，为了追求更宽的频谱来达到更快传输速率及高资料容量的传输，宽频的毫米波频段提供了解决此问题的途径，毫米波无线通讯系统提供了相对於微波通讯系统宽频的优点，且为了更有效的使用频谱，各种不同且复杂的数位调变方式及方法被发表出来，越复杂的调变方式其所需的线性度越高，且需要更多不同的相位讯号来完成调变的过程，因此高线性度及四相位的调变及解调器将是此篇论文的研究重点，为了达到高整合性，高效能，及低成本的电路设计，我门利用互补式金氧半导体制程来完成此电路设计，因此一小面积的直接降频(Direct down-conversion)及直接升频(direct up-conversion)电路将在文中介绍。

The study showed that the role of inhibitor of pyridine's ramification was more effective than of pyridine itself, and found that the lycopene could attain 400mg/L when adding 1g/L tobacco dust. The modulator could make different effect on fermentation.

研究了不同阻断剂的阻断效果，结果表明：吡啶衍生物的阻断效果明显高于吡啶，烟草废弃物可阻断番茄红素向β-胡萝卜素的转化，当添加1g/L烟草废弃物时，番茄红素的产量达到400mg/L。

The oven heater consists of PID modulator/solid state relay and temperature sensor.

中国工程物理研究院电子工程研究所，四川绵阳，621900

The oven heater consists of PID modulator/solid state relay and temperature sensor.

作者单位：（中国工程物理研究院电子工程研究所，四川绵阳，621900

The key technologies of novel photoelectron elements to support RoF are optical generations and receivers technologies for millimeter wave subcarrier, including external modulator method, radio frequency up-conversion method, self-heterodyne method, generator of optical pulse self-modulation, and so on.

近年来，支撑RoF技术的新型光电子器件的关键技术有毫米波副载波光学产生技术和接收技术，其中包括外调制器方法、射频上转换法、光学外差法、毫米波调制光脉冲发生器等等。

Every sub-circuit is designed reasonably according to the principle and character of PWM switching converter, such as: bandgap, error amplifier, oscillator, narrow pulse generator, saw tooth generator, PWM comparator, PWM modulator, output stage, OCP circuit and low voltage comparator.

根据PWM开关电源的原理和特点，合理地设计了各个子电路，其中包括：带隙基准源、误差放大器、振荡器、窄波发生器、锯齿波发生器、PWM比较器、PWM脉冲调整器、输出级电路、过流保护电路和低压比较器等。

As for 0.1 degree per hour IFOGs, the requirement of RIM value is below 8lppm in another typical condition. The precise measurement method of the RIM value with a phase lock amplifier was proposed and applied on a homemade phase modulator. Its RIM value meets the requirements of middle-resolution IFOG

提出利用锁相放大器精确测量相位调制器RIM的方法，并对国产器件进行测量，结果表明，器件RIM指标可在中低精度IFOG中应用。

Based on analyzing the optical activity of BSO and the principle and structure of the BSO-based optical-addressed spatial light modulator, the influences of the optical activity of BSO on the performance of SLM are concluded.

对BSO晶体的旋光效应特性及BSO基光寻址空间光调制器的结构及工作原理的研究表明晶体旋光效应会影响空间光调制器的图像转换质量。

In this Thesis, we designed and implemented an oversampling multi-bit delta-sigma modulator.

在这篇论文中，我们设计并以交换电容电路实现了一个多位元的三角积分调变器。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。