查询词典 converter

The relationships of signal-to-noise ratio of sampled signal, analog filter before analog-to-digital converter and sampling rate have been discussed, the results of the discussion have instructiveness for the design of digital receivers.

该文讨论采样后信噪比与模数转换器前的模拟滤波器以及采样率之间的关系，所得结论对数字接收系统设计有指导意义。

The calculation indicates that converter heat insulation layer thickness of asbestos board is about 30 mm.

对重钢50t转炉进行了炉壳温度场分析，计算表明：转炉隔热层石棉板的厚度为30mm时，炉壳温度就能控制在360℃以内，低于炉壳材质的蠕变温度。

In this case, it need protocol converter to interconnect different buses.

这种情况下，就需要利用协议转换器使不同总线之间互联。

Schematically illustrates a flat screen display arrangement 10 comprising a source of interlaced video material 20, an interlace to progressive scan converter 30 and a display panel 40 such as a liquid crystal or plasma display.

图1示意性地示出了平板屏幕显示器布置10，其包括隔行视频素材源20、隔行到逐行扫描变换器30以及显示面板40，所述显示面板比如是液晶或等离子显示器。

The present paper introduced one kind of brand-new transformer measured the warm far biography method -separate method, it has abandoned the tradition the transformer temperature signal by in the remote survey way the biography, the demonstration mentality, but is fully excavates the existing dispatch monitoring automated system the function, the scene transformer temperature signal through the self-made temperature converter, transforms with the transformer temperature correspondence discrete magnitude, far passes to through the RTU remote letter signal the dispatch monitoring end, carries on the demonstration again in the dispatch end using the monitoring software corresponding formula inversion for the warm measure.

本论文介绍了一种全新的变压器测温远传方法-离散法，它摒弃了传统的将变压器温度信号以遥测量的方式上传、显示的思路，而是充分发掘现有调度监控自动化系统的潜在能力，将现场变压器温度信号通过自制的温度变换器，转换成与变压器温度对应的离散量，通过RTU遥信信号远传到调度监控端，在调度端利用监控软件相应的公式再反演为温度量。

You can also use this joiner to convert a video file to another format with the built-in video converter.

您也可以使用这个joiner转换的视频文件，以另一种格式，与内置的视频转换器。

Absolute Video Splitter Joiner is also a video converter to convert video files among those video formats.

绝对视频分配器joiner也是一个视频转换器转换成视频文件，其中包括视频格式。

A low-power dissipation keyboard in portable measuring instrument, based on A/D converter method, is proposed in this paper.

摘 要 本文提出了便携式测量仪器中基于A/D转换器的低功耗键盘的设计方案。

The thesis contains five chapters. The first chapter summarizes the development and research of switched reluctance drive, discusses the main research direction, and explains the main work in this paper. In chapter 2, hardware system which includes the design of power converter and various control circuit is discussed. TMS320LF2407 DSP is used to design the hardware circuits of SRM control system, and design details including the current detection, position sensing, fault protection, speed detecting, keyboard and display etc. are provided. Because of the full use of the abundant peripheral resources of DSP, it comes to the aim simplifying the circuit structure and heightening the reliability. In chapter 3, the application of neural network on SRM control system is introduced, a new the application of neural network and the method of sampling is proposed and a simulation system based on Matlab/Simulink is established. Chapter 4 discusses the routine designing issue. Because the modularized programming method is adopted, and multi-interrupt processing technique is used, operation efficiency of the control software is highly raised. At last, the foregoing SRM control system is tested. Speed adjustment is realized, and other targets on the research and design of SRM control system are reached, which establishes a good foundation for further research.

本文共分五章，第一章概述了开关磁阻电机调速系统(Switched Reluctance Drive，简称SRD)及其发展和研究现状，论述了其主要研究方向，并说明了本文的主要工作；接下来的一章主要讨论了SRM的硬件系统，主要包括功率变换器的设计和各种控制电路的设计，本文以TMS320LF2407为核心设计了开关磁阻电机控制系统硬件电路，给出了包括电流检测、位置检测、故障保护、测速电路及键盘和显示电路等部分电路的详细设计，充分利用了DSP的丰富外设资源，达到了简化电路结构、提高运行可靠性的目的；第三章介绍了人工神经网络在开关磁阻电机控制系统中的应用，提出了一种新的应用方式(利用GPFN神经网络调节PI参数)以及如何采取样本，搭建了基于Matlab/Simulink的仿真系统；在第四章中，讨论了开关磁阻电机控制软件的设计，采用模块化编程方法，采用基于多中断的控制程序，提高了控制软件的效率；最后，对所设计的开关磁阻电机控制系统进行了实验，实现了电机调速，达到了开关磁阻电机控制系统研究和设计的预期目标，为更近一步研究打下了基础。

The contract calls for ABB to design and deliver two converter stations, one in Fiume Santo, Sardinia, and the other in Latina, on the Italian mainland – both in existing 400 kilovolt substations.

该合同要求 ABB 设计和交付两座转换站，一座位于撒丁岛的 Fiume Santo ，另一座位于意大利大陆的拉蒂纳市，两座皆在现有的400千伏变电站上。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。