输出信号

The system is partly a multivariable control system which means that one output action variable (e.g. chemical charge) is controlled from more than one source (e.g. two feed forward signals, one feedback signal and an operator bias input).

该系统是部分的多变量控制系统，就是说一个输出动作变量是由多于一个的源变量(比如两个前馈信号，一个反馈信号和操作员的偏置输入)来控制的。

After adjusted the voltage of analog signal, corresponding channel selection was implemented with relay matrix. The analog signal is transmitted as the input of tested instrument.

输出的模拟信号经电压调整后通过继电器矩阵完成相应的通道选择，作为被测试设备的输入信号。

The instruments used ATmega16L onboard A / D converter channels to achieve the cold wind pressure, the hot blast pressure, the furnace top pressure and cold wind current capacity four way analog acquisition;used PWM waveform produced by ATmega16L internal timing / Counter to achieve the entire differential pressure ,the cold wind flow and the permeability index three-way analog output for recording instruments; realized the cold wind pressure, the hot blast pressure, the furnace top pressure, the cold wind current capacity and the entire differential pressure five group parameter tour demonstration and the fixed-point demonstration by key-elect key's coordination during demonstration blast furnace permeable index; produced acousto-optics alarm when the permeable index across the upper and lower limits;used RS-485 realizing the communication with the superior computer.

仪表利用ATmega16L自带的A/D转换通道实现对冷风压力、热风压力、炉顶压力及冷风流量四路模拟信号的采集；通过ATmega16L内部的定时/计数器产生的PWM波形来实现对全压差、冷风流量及透气性指数三路模拟量输出供记录仪表使用；通过键选键的配合在显示高炉透气性指数的同时实现冷风压力、热风压力、炉顶压力、冷风流量及全压差五路参数的巡回显示与定点显示；当高炉透气性指数越上、下限时，仪表产生声光报警信号；仪表采用RS-485与上位机实现通信。

The foundation of this system provides a good reference to promote the standardization and intelligence of the overhaul and maintenance of vacuum switches. This paper develops a special HF pulse power supply for internal pressure estimation, which achieves the output of HF-HV sinusoidal pulse wave whose frequency and amplitude can be modified respectively, and meets the design requirements according to the results of Simulink simulation and practical experiments. With the help of AT89S52, this paper designs an I~2C serial bus based signal detection system for peak value signal acquisition of HF pulse currents, which communicates with the upper computer by asynchronous serial communication for uploading the data. In the upper computer, a human computer interface is developed by Matlab software, whose functions are to do some computation and graphic display, such as calibrating the relation curve of vacuum degree and peak value of HF pulse currents, vacuum degree computation, and vacuum lifetime evaluation analysis basing on grey forecasting model as well as making relative suggestions.

本文研制了用于真空度检测的高频脉冲电源，通过Simulink仿真和试验检验其满足设计要求，实现了电压幅值和频率独立可调的正弦波高频高压脉冲输出；利用以AT89S52为核心基于I~2C串行总线的信号检测系统实现高频脉冲电流峰值信号的采集，通过异步串行通信实现单片机与计算机之间的数据通信，将检测数据传至上位机；在上位机利用Matlab开发人机交互界面，实现相关数据处理和图形显示，包括真空度——高频脉冲电流峰值关系曲线标定、真空度数值计算、基于灰色预测模型的真空寿命评估分析和提出相应决策建议。

The bridge loses balance and sensitive parts have a output signal,which will transform to related current signal after differential magnifying and conversion between current and voltage. Linear 4~20mADC standard signal is formed by compensation of magnifying and non-linear rectified ring circuit ,and second temperature compensation.

输出的电信号，经过差分放大，电压电流转换，变换成相应的电流信号，通过放大和非线性矫正环路的补偿，以及精密的二次温度补偿，产生与输入压力输成线性关系的4~20mADC 二次制标准信号。

In the method,the position of the bell-like optoelectronic pulse peak signal from a coordinator gyroscope was accurately measured,and the position was used as time reference to measure the phase.

该方法可准确检测从位标器陀螺仪输出的钟形光电脉冲信号峰值点的位置，并以其为时间基准点进行相位测量，同时判断被测2个信号之间的时间间隔以及超前与滞后关系。

It measures accurately the peak value of the bell-like optoelectronic pulse signal come from coordinator gyro rotor ,which is used for the time standard in phase measurement.

提出了一种新的相位测量方法，该方法准确检测了从位标器陀螺仪输出的钟形光电脉冲信号峰值点的位置，并以其为时间基准点进行相位测量，同时判断被测两信号之间的时间间隔以及超前、滞后关系，同时针对在现场中的干扰因素，提出了相应的解决措施。

It measures accurately the peak value of the bell-like optoelectronic pulse signal from coordinator gyro rotor , which is used for the time standard in phase measurement.

提出了一种相位测量方法，该方法可以准确检测从位标器陀螺仪输出的钟形光电脉冲信号峰值点的位置并以其为时间基准点进行相位测量，并可判断被测两信号之间的时间间隔以及超前滞后关系。

No. 01-Ⅲ corresponding to the regulating handle position determines the output rate of the P.G. governor through the 3-way valve (pos. no. 29, lower frame).

因为操纵阀01-Ⅲ相应调节手柄位置的输出压力信号决定调速器输出比率通过三通阀29，下位。

Because the output pressure signal of the manoeuvring valve(pos. no. 01-Ⅲ) corresponding to the regulating handle position determines the output rate of the P.G.

因为操纵阀01-Ⅲ相应调节手柄位置的输出压力信号决定调速器输出比率通过三通阀29，下位。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。