查询词典 servo

To improve the characteristics of the system,an antenna servo controller based on DSP is developed.In the servo system,a new algorithm based on the exponential trending rule discrete sliding mode variable structure algorithm is used and theoretical analysis and experimental simulating are done.

为改善天线系统的性能，实现了基于DSP的天线伺服控制器，在设计的天线伺服系统中应用基于指数趋近率的离散滑模变结构控制算法，并且进行了设计分析和实验仿真。

Sliding mode variable structure space vector modulate direct torque control is selected for electro-servo system, and different parts of servo system is modeled.

由于海浪的随机扰动等因素的影响，对电磁转矩的控制成为了伺服控制的关键，最终确定伺服系统的控制方式采用滑模变结构空间矢量直接转矩控制，并建立了系统各部分的数学模型。

At first, configuration method of stabilization of LOS and survey of development of AOEP in the world are summarized in this paper, and then principal of how movement of airplane can be isolated by a two-axis-platform is analyzed theoretically. Requirements of stabilization of LOS to servo system are put forward. It provides the basis of theory for designing servo system.

本文首先概述了国内外光电平台的结构和视轴稳定方法以及光电平台的发展概况，介绍了常用的稳定与跟踪控制方法；进而从理论上分析了两轴光电稳定平台隔离载体角运动的原理，总结并提出了视轴稳定对伺服系统的性能要求，从而为伺服系统的设计提供了理论依据。

The holistic design of the system and resolved the designs of software and hardware based on VXI bus are put forward according to the demand of test system. The hardware and software is designed, including the formation and design of hardware system, visual instrument software architecture, program design for instrument driver, high speed real-time data collection. In the dynamic test program, the idea of"software is instrument"was applied to meet the diverse test demands. Last, it is proposed that the VXI test system be developed to more totalization and networked. The basic theory of system identification was introduced briefly at first. The principle of spectrum analysis system identification based on Wiener-Hopf equation was expatiated. and the questions in applying Peusdo Random signal as spectrum analysis methods stimulate signal was studied, The generation principle of the peusdo random signal is researched, the characteristic of peusdo random are analyzed from time domain and frequency domain, the inverse repeat peusdo random signal is brought forward to make up the shortage of ordinary peusdo random signal. And a new chaos genetic algorithmis presented to solve the unprecise problem of the traditional method. In the servo valve dynamic characteristic test system, the spectrum analysis methods was applied successfully, the servo valve dynamic characteristic could be acquired rapidly and exactly, the test results were analyzed and the ameliorate methods were brought forward at last.

结合航天某集团液压测试中心测试系统的需求，提出了基于VXI总线的液压测试系统的整体设计方案，完成了测试系统的硬件设计与软件设计，包括硬件系统构成与设计、虚拟仪器软件结构、仪器驱动程序设计、高速同步实时数据采集等内容；以伺服阀动态特性测试为例设计了测试模块，该模块体现了VXI总线仪器软件开发所倡导的"虚拟仪器"的思想，以软件的灵活应用满足了不同的测试需求；结合自动测试系统的发展，研究了VXI测试系统与网络技术结合，实现各种软硬件资源共享，进一步提高设备及数据的利用率和系统的扩展性，使自动测试向综合化、网络化方向发展；研究了伪随机信号作为谱分析法辨识的激励信号时存在的问题，讨论了伪随机信号的产生机理，从频域和时域分析了伪随机信号的性质及其应用，提出了用逆重复伪随机信号弥补了普通伪随机信号的不足，并以混沌遗传算法对逆重复伪随机信号产生过程中的参数进行优化，可以更合理而不是凭经验产生需要的逆重复伪随机信号。

This dissertation applies virtual instruments technique in the field of servo valve CAT for the first time and makes a servo valve static and dynamic state characteristic test bedstand based on virtual instruments. Relevant theories and methods are also studied.

本文首次将虚拟仪器技术应用在电液伺服阀CAT领域，研制出一套基于虚拟仪器的电液伺服阀静、动态特性测试综合实验台，并对电液伺服阀静、动态特性测试的有关理论及方法进行了研究和探索。

A new parameterized controller is designed for a hard disk drivehead positioning servo system which currently uses the voice coil motor as its servo mechanism.

针对以音圈电机作为伺服机构的硬盘磁头定位伺服系统的性能要求，设计了一个参数化的控制器并进行仿真和实验研究。

The controllers has considered all sorts of imperceptible factors affecting the servo performances in a LPMSM servo system, which include the parametric uncertainties brought by the changes of the mobile mass, the dynamitic performance of the system and the size of input.

针对非线性控制器设计参数较多这个问题，本文将参数设计问题转化为一种优化设计问题，借助于寻优方法中最为有效的遗传算法，可以比较方便的找出符合设计要求的一组调节参数，来解决模型摄动和参数不确定性给系统带来的扰动，以保证系统的稳定性及鲁棒性。

It can handle a wide range of multi-substrate packaging and labeling materials, aided by a servo-driven infeed, servo drives on all print units, as well as a mid-feed pacer and die-cutter units.

它可以处理广泛的多基质包装和标签材料，由资助伺服驱动进给，在所有印刷单位的伺服驱动器，以及一个中期饲料起搏器和模切单元。

I currently also Deputy the following products: servo motor type: Japan Yaskawa, Panasonic, Mitsubishi, Taiwan TECO servo motor.

我公司目前还代理以下产品：伺服马达类：日本安川，松下，三菱，台湾东元伺服马达。

The servo controller regards TI Company DSP chip TMS320LF2407A as the main chip,has adopted standard ISA bus structure,has high -integration and high-agility,has accomplished in real-time complex boolean calculation and control algo- rithms during motion control,and can be used to realize high-speed and high-accuracy servo control for mul- tiple axis.

O前言以DSP为核心的多轴伺服控制器越来越广泛地应用在运动控制系统中，上位机只需对被控对象实施总体的控制和管理，而位置反馈信号的采集，闭环控制计算及控制量的输出均由伺服控制器完成，具有运算速度快，支持复杂的运动算法的特点，能实现高速度、高精度的位置伺服或轨迹

He paid $5,000 for this cupcake.

他我这个纸杯蛋糕花了5000美元。

I mean, if you want to, that is

我的意思是，如果你们想吃的话。