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模拟量
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  analog signals
    The Intelligent Optic Cable Transmission System Used in Transmission of Switch Signals and Analog Signals
    用于开关量、模拟量传输的智能光缆传输系统
短句来源
    The research object of this paper is the JT15D-4 engine, and 20 analog signals and frequency signals, 16 digital signals was selected as the monitor object. The auto-monitor of the signals can provide scientific testimony for the analyses of the state trend, failure diagnosis and servicing.
    本文以JT15D—4型发动机为研究对象,选取了20路模拟量、频率量和16路开关量作为监测量,通过对这些参数的自动监测,为发动机的状态趋势分析、故障诊断和视情维修提供科学的依据。
短句来源
    In view of numerous digital and analog signals need to be processed, and the difficulty of real-time processing of multi channel 400 Hz AC signal, VHDL ( VHSIC Hardware Description Language ) is applied to design the digital circuit, which is successfully realized in Field Programmable Gates Array IC-XC2S100. Therefore, the peripheral circuit is simplified, and the burden of CPU is relieved.
    针对I/O模块中需要处理的数字量和模拟量较多的事实,以及多路400Hz信号的实时处理较为繁重的现状,作者采用了现场可编程门阵列(FPGA)加以解决。 论文使用硬件描述语言VHDL进行了相关电路的设计,并在XC2S100芯片上得以实现,从而简化了硬件电路,减轻了CPU负担,增强了信号处理的实时性。
短句来源
    During the design of the system, the system is required not only to deal with numerous analog signals which include multi-channel 400 Hz AC signals with high real-time request, but also to realize the manage and control of more than 200 channels data signals.
    课题在设计过程中,要求系统不仅要处理包含对实时处理要求较高的400Hz交流信号在内的的多路模拟量信号,还要求系统实现对多达200多路的数字量的管理和控制。
短句来源
    The modular of analog signals acquisition realizes the acquisition and transmission of seventeen muti-range analog signals(voltage,current,delay time etc.)
    数据采集模块实现了 17 路多量程模拟量输入信号(如电压、电流、延迟时间等)的采集和变送;
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    second, it presents the design ideals and processing functions of host control CPU module of the information processor, input module of AIN simulating volume, DIO switching volume module, CIM communication module, FDISK record module, power supply module, and display control module, all of which are fitted for implementing TECMLF functions;
    其次介绍为实现FSJCS功能而配置的信息处理机的主控制CPU模块、AIN模拟量输入模块、DIO开关量模块、CIM通讯模块、FDIsK记录模块和电源模块的设计思想和处理的功能,控制显示器的显示控制模块的设计思想和处理的功能;
短句来源
    We choose AD7502 to realize the switching of multi-swfit and AD574 chip for A/D transformation. As far as humidity , we adopt 8251 chip to expand serial corresponding port to meet the demand of RS-485 communicate;
    对压力和顶芯力模拟量采集我们选用AD7502进行多路开关的切换,AD574芯片实现模拟量的A/D转换:而湿度和烟雾量为数字量,对于以RS-485通信的湿度变送器我们采用8251芯片进行串口扩展来实现通信采集;
短句来源
    The combination of data acquisition systerm and PC is used widely now, and it will play an important role in electric parameter measurement.
    数据采集系统是一种应用十分广泛的模拟量线性测量系统,以数据采集系统与计算机系统相结合,配备信号处理与分析等软件而开发出来的称为虚拟仪器的系统,将会使电气参数测试理论得到更好地应用。
短句来源
    Three kinds of circuit are developed for position transducers, force transducers and flow transducers.
    针对具体项目,开发了力传感器、位移传感器、流量传感器信号的放大变送电路,模拟量、开关量信号调理电路。
短句来源
    After the projects of hardware and software are confirmed, the idiographic methods of information collection and disposal are analyzed and the task procedures are compiled. At the same time, the design work of main body circuit structure、simulation signal input channels、 switch signal input/output circuits and frequency collection circuits is processed.
    系统软、硬件方案确定之后,又对具体的信息采集和处理方法进行了分析,根据分析情况编写了相应的软件任务程序,同时进行了主体电路结构设计、模拟量输入通道设计、开关量输入/输出电路设计和频率采集电路设计等工作。
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  analog signals
The converter of analog signals into a numerical pulse code transmits data to a personal computer through a standard COM-port.
      
An Automatic Multichannel Device for Measuring Analog Signals
      
The four-channel device that converts analog signals into unit-counting codes transfers the data to a personal computer via a standard COM port.
      
A Device for the Synchronous Inputting of Video and External Analog Signals into a Computer
      
In the second case, the amplitude of analog signals coming from the output of the linear amplifier is changed by the thermoresistor supplied with a heating winding.
      
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A detective and negative feedback closedloop control system as an example of the blade fatigue,test system is described. It is cam posed of a microcomputer, an eddy-current transducer and analog input and output devices. The nest form of high-level Janguage and assembly language are taken to realize autonmatic detection and, control of a blade fatigue test system. The system can also be used for the fatigue test of fuel tube systems.

本文闸述了以叶片振动疲劳试验系统为例,使用微机系统、位移传感器、模拟量输入和输出装置等组成的检测与负反馈闭环控制系统。该系统采用高级语言和汇编语言子程序嵌套方式,实现了对叶片疲劳试验系统的自动检测与控制,也兼容于燃滑油管系统的疲劳实验。

The paper introduces balance installation of pitch and rollfor dynamic derivative.The major is mechanism of motion and measure-ment.The installation has done tests at three times in wind tunnel.Itintroduces the improved form in 1990.The characteristic of installation is four centers coincidence whichare electric center of bridge,roll center of pitch,aerodynamic referencecenter of model and mass center.Pitch motion is driven by D.C.-stepmotor.The model fixed on the bearing can roll under action of aerody-namic...

The paper introduces balance installation of pitch and rollfor dynamic derivative.The major is mechanism of motion and measure-ment.The installation has done tests at three times in wind tunnel.Itintroduces the improved form in 1990.The characteristic of installation is four centers coincidence whichare electric center of bridge,roll center of pitch,aerodynamic referencecenter of model and mass center.Pitch motion is driven by D.C.-stepmotor.The model fixed on the bearing can roll under action of aerody-namic loads.The frequency of roll and pitch are acquired by tachome-ter of B.K.company and LDC-825 counter.The pitch moment M_z andthe pitch angleθof model are measured by strain gage bridge.The signalis acquired and producted by Neff-720 as well as acquired and recordedby XR-7000.It is the first set to use trisonic wind tunnel in our countrysuccessfully for roll and pitch tests of four centers coincidece of aircraftmodel.The signals of the pitch moment:M_z and the pitch angleθaresatisfactory.The set has got results of derivative(?)for preresearchmodel.

本文介绍俯仰-滚转动导数天平装置,着重介绍其运动机构和测量机构。此裝置已经做过三期实验,重点介绍第三期实验用的改进型。装置的特点是 M_z 电桥电气中心、俯仰运动转心、模型气动参考中心和模型质心四心重合。俯仰振动是由步进电机驱动的,通过轴承支撑的模型又能在气动力驱动下自由滚转。俯仰频率和滚转速度被 LDC-825计数器和 B·K 公司转速计记录。模型的俯仰力矩 M_z和俯仰角θ值分别用应变电桥测量。信号被 Neff-720系统和 XR-7000磁带机进行数据采集处理和模拟量记录显示。这是国内第一套成功地用于跨超声速风洞飞机模型实验,四心重合的俯仰-滚转实验装置。力矩 M_z 和俯仰角θ的输出信号是非常满意的,已经为某预研型号提供了(?)导数的测量结果。

introduces an intelligent PID regulator, which employS 8031 single-chip microcomputer as its processor and combines with other peripheral chips such.as RAM, EPROM,DAC M ADC etc.The interfsce of the regulator is so simple that it realizes analog in and out directly, it can fit many kinds of analog detecting and control instruments to COmpose different process control system.The PID algorithm in this regulator is the speedchanging integration PID scheme,it can solve the problems caused by the general PID algorithm,...

introduces an intelligent PID regulator, which employS 8031 single-chip microcomputer as its processor and combines with other peripheral chips such.as RAM, EPROM,DAC M ADC etc.The interfsce of the regulator is so simple that it realizes analog in and out directly, it can fit many kinds of analog detecting and control instruments to COmpose different process control system.The PID algorithm in this regulator is the speedchanging integration PID scheme,it can solve the problems caused by the general PID algorithm, such as quickness,integral saturation and oscillatory occurence,and the regulating result is quite good Also the operation is simple, the display is winal, the reliability and the degree of accurcy are hagh,and it is believed to be used widely in the future.This paper contains both hardware and software design.

介绍一种智能化PID调节器,它以MCS-51系列的8031单片机为处理器,配合其他外围芯片(如RAM,EPROM,DAC和ADC等)构成。该调节器外部接口简单,实现了模拟量的直接输入和输出,可以方便地和各类模拟的检测和控制仪表相配合,组成不同的过程控制系统。调节器的于PID算法采用的是变速积分的PID位置算式,有效地消除了一般PID算法中出现的诸如快速性、积分饱和、振荡剧烈等问题,调节效果较好。本调节器操作方便、显示直观、工作可靠、精度高。本文介绍了该系统的硬件和软件的设计。

 
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