控制信号

You can control the output from the Model T7900 using the keypad or from an analog control signal.

你可以控制从输出示范T7900使用键盘或从模拟控制信号。

Based on surveying the development of variable frequency power supply and analyzing its development tendency, and considering the practical features of the assignment, the conversion system is designed as follows: it selects the 3-phase Pulse Width Modulation Engine SA4828 as the PWM control signals generator; it chooses the single-chip-computer PIC16F877 as the microcontroller, which integrated the A/D modulation, which cuts down the complexity of the hardware system and strengthens the dependability of the system.

在论述和分析了变频电源及其控制技术发展的概况和趋势的基础上，结合本课题任务的实际要求，设计了一套中小功率的逆变电源。系统中PWM控制信号采用专用集成芯片SA4828生成，减轻了控制器的工作量也提高了系统的可靠性。控制器选用集成了A/D转换器的单片机，使得系统的硬件复杂性降低，提高了可靠性。

In a signal box, a map of the stretch of track the signal box is controlling is normally put up on the wall, and when a train enters a particular block, a light representing that block, alight representing that block on the map lights up to show the train' s location.

在信号塔内，一个控制信号线路图通常置于墙上，当一列车驶入特定的区段时，该区段的灯亮起以显示车的位置。

The relationship between the error signal and gain parameters of PID controller is nonlinear, and , a normal controlled system＇ s step response figure , under the condition of ideal change of the three PID gain parameters in the different time , PID con troller.

但是，目前使用的PID控制器大多仍是传统的线性PID 控制器，其控制信号是通过将参考输入与被调节量的偏差及其微分、积分进行简单的线性组合来生成的，而且PID控制器的增益参数在系统动态响应过程中是固定不变的，不能反映偏差信号的变化l2j。

Congratulations on choosing the dbx 166XL Compressor / Gate. The 166XL provides two channels of noise gating, OverEasy? or classic hard knee compression and PeakStop? limiting to give complete control of signal dynamics to studios, sound reinforcement companies, musicians, or anyone who needs quality processing quickly and easily.

感谢你选购dbx 166XL 压限/噪声器。dbx 166XL 提供两个噪声门通道，OVEREASY或专业硬拐点压缩和峰值终止限制，限制性地完全控制信号提供给录音室，专业音响扩声公司，音乐人，或者任何需要高质量地快速且容易地处理信号的人。

Under normal circumstances, the printer paper into the slot there is a photoelectric sensor Office of the photoelectric sensor can be sensitive to "capture" to paper, whether or not correctly placed in the feed tank, feed tank if there is printing paper exist, the Photoelectric sensors can be identified on the paper, and generate a recognition signal transmission to the printer, print to inform the printer to do the preparatory work, even if the paper into the slot there is no printing paper, the photoelectric sensor control signals will be transmitted to the printer, where do not tell the printer to print tasks.

通常情况下，打印机进纸槽处存在一个光电传感器，该光电传感器能敏锐地&捕捉&到纸张是否正确地放置到进纸槽中了，倘若进纸槽中有打印纸张存在的话，该光电传感器就可以识别到纸张，并产生一识别信号传输给打印机，通知打印机做到打印准备工作，即使进纸槽中没有放打印纸时，光电传感器也会有控制信号传输到打印机那里，告诉打印机暂时没有打印任务。

55 Flagmen 信号旗手 When signs, signals, and barricades do not provide necessary protection on or adjacent to a highway or street, flagmen or other appropriate traffic controls will be provided.

当标志，信号和路障在一公路或大街上或其附近已不能提供必要的保护时，则要提供旗手或其它合适的交通控制措施。

The purpose of the genlock circuitry is to recover a sample clock and the timing control signals (such as horizontal sync, vertical sync, and the color subcarrier) from the video signal.

同步锁相电路的作用，是从视频信号中恢复像素时钟和时序控制信号（比如行同步，场同步，色载波）。

First, the design of the hardware circuit: It is mainly the interface circuit of PLC, including operation control signals of inputting part, low-voltage protection,over-voltage measure circuit , sensor input signal ,etc.

第一、硬件电路的设计：主要是PLC的接口电路，包括输入部分的运行控制信号，欠压检测、过压检测电路，传感器输入信号等等，输出部分有悬浮部分的主电路，显示电路，扩展模块以及变频器VDF—M的连接。

It put forwarded the concept of comfortable natural wind at first and confirmed the types of comfortable natural wind signal. Meanwhile, it decided to use the preferential-selecting natural wind signal as the control signal.

研究中首先提出了舒适性自然风的概念，确定了舒适性自然风采样信号的类型，并提出用优选自然风样本作为随机自然风控制信号。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。