步进的

Stepper motor is the working principle of electrical pulse signal into angular displacement of a Electromechanical Digital to Analog.

步进电机的工作原理是将电脉冲信号转换成角位移的一种机电式数模转换器。

Then,it concretely analyses and introduces the electrical construct,electrical feature,and program of the control systems of chemical fiber baler.

首先介绍了三菱FX2N的特性特点、程序设计方法和编程方法，程序设计方法和编程方法包括经验设计法、顺序控制设计法和STL步进梯形指令，然后详细具体地分析和介绍了化纤打包机控制系统的组成、电气特征和程序。

At first it introduces the characteristics,method of designing the program,and method of editing the program of Mitsubishi FX2N.The method of designing and editing the program include the Experience Designing Method ,Sequencely Controlling Designing Method,and STL.Then,it concretely analyses and introduces the electrical construct,electrical feature,and program of the control systems of chemical fiber baler.

首先介绍了三菱FX2N的特性特点、程序设计方法和编程方法，程序设计方法和编程方法包括经验设计法、顺序控制设计法和STL步进梯形指令，然后详细具体地分析和介绍了化纤打包机控制系统的组成、电气特征和程序。

In order to obtain high performance of acquisition, beam scanning methods need to be studied.

最后，构建了由步进电机驱动的PAT实验平台，并对实验平台的性能进行了测试。

The coefficient of friction is directly related to human＇s safety.

步进摩擦系数的大小直接关系到人体在行走过程中的安全性。

The main objective of this design is the completion of the stepper motor control.

本设计的主要目标是完成步进电机的控制。

The design principle of the trial pump includesusing the dry batteryof+6V,(2)adoption of 89C51-a type of MCU as the control center,and(3)while the natural special injector piston is drived by the step motor, the insulin goes into the patients abdomen endermic tissue, according to insulin exudation curve of the natural body.

实验泵的设计思路是：使用+6V干电池作为供电电源，采用89C51单片机作为控制核心，通过步进电机驱动专用注射器活塞，将胰岛素按照正常人体的胰岛素分泌曲线注射到患者腹部皮下。

But the stepper motor'sefficiency is low;much of the input energy must be dissipated as heat.

但是步进电机的效率低；多数的输入能量都必须以热量耗散掉。

6"Ball cover, Features beauty,refinement; The precise step enters the electrical engineering to drive, go placidity,go to nicety;shift aptitude, Horizontal speed 0.5°/s---240°/s ,Vertical speed 0.5°/s---200°/s;Vertical running have function to "Auto-flip, 360°continous horizontal flip;Dome speedauto-shift--- The speed of housing become the zoom lens depth to increase its speed pro rata lower gradually, a little bit on guard function; Auto-focus,auto-iris,Tum to surge and lightning strike protector;Menu setup and control function,estate memory before break off electricity and auto-resume

6英寸球罩，外型美观、精巧；精密步进电机驱动，运转平稳，定位准确；智能变速，0.5°/S－240°/S水平变速，0.5°/S-200°/S垂直变速；垂直转动有"自动翻转"功能， 360度持续水平转动；云台速度自动调整—云台的速度随变焦镜头深度的增加其速度按比例逐渐降低，守望点功能；自动聚焦，自动光圈，内置浪涌及雷击保护装置；菜单设置及控制功能，断电前状态记忆及来电自动恢复功能；64个预置点

6"Ball cover, Features beauty,refinement; The precise step enters the electrical engineering to drive, go placidity,go to nicety;shift aptitude, Horizontal speed 0.5°/s---240°/s ,Vertical speed 0.5°/s---200°/s;Vertical running have function to "Auto-flip, 360°continous horizontal flip;Dome speed auto-shift--- The speed of housing become the zoom lens depth to increase its speed pro rata lower gradually, a little bit on guard function; Auto-focus,auto-iris,Tum to surge and lightning strike protector;Menu setup and control function,estate memory before break off electricity and auto-resume fuction in come to electricity; 64initialize spots,5 auto-patrol path;Contain multi-confer;485standard communcation interface;Function to give an alarm to linkage.

6英寸球罩，外型美观，精巧；精密步进电机驱动，运转平稳，定位准确；智能变速，0.5°/S-240°/S水平变速，0.5°/S-200°/S垂直变速；垂直转动有"自动翻转"功能， 360度持续水平转动；云台速度自动调整—云台的速度随变焦镜头深度的增加其速度按比例逐渐降低，守望点功能；自动聚焦，自动光圈，内置浪涌及雷击保护装置；菜单设置及控制功能，断电前状态记忆及来电自动恢复功能；64个预置点， 5条自动巡视路径；兼容多种协议；标准485通讯接口；报警联动功能。具有球机环境温度和摄像机角度数显功能。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。