直流电机

Then analyses the principle of direct current moment electromotor and builds the mathematical model and gives the block graph of transfer function and studies the PWM control strategy.

然后对直流力矩电机工作原理进行了分析，建立了直流力矩电机的数学模型，给出了直流力矩电机传递函数框图，研究了直流力矩电机的PWM控制方式。

The machine is compacted in its structure. ADC motor is used for stretching, thus a synchronous speed regulation and a single speed regulation can be achieved to meet the different parameters.The spinnerets are produced by the most advanced way, so that the flatness and uniformity of the thread can ensured.

整机结构紧凑、牵伸采用直流电机同步调速和单独调速，以确定不同的参数、喷丝头采用最先进的加工手段，保证了圆丝的光洁度和均匀度，全套设备运行平稳，控制灵敏，操作方便，安全可靠。

The business of the company is professionally on ship set facilities, various pumps, AC/DC motors and electric appliances for various ships, accessories for 300 and imported diesel engines, lighting products of ships, and bulbs, anchors, cable, thermometers, pressure gauges, lifesaving products, riggings, etc.

专业经营船舶成套设备、各类船用水泵、交直流电机及电器，300及进口柴油机配件、船用各种灯具及灯泡、锚具、缆绳、温度计、压力、救生、卸扣索具等产品。

The electrical control valve, manual control only of the pilot valve with 3 ~ 5V direct current machine drive can be.

对于电动控制的截止阀，只需将先导控制的手动球阀用3～5V直流电机驱动即可。

According to it ,a soluting of digital control system of DC motor using TI's TMS320LF2407 is prese...

针对以上情况，本课题采用TI公司的TMS320LF2407作为控制器，提出了基于位置环和速度环的双闭环全数字直流电机伺服系统控制方案。

Freescale16 design is partly based on SCM MC9S12DG128 as a system for the control processor, based on infrared sensors detect the road, through the processing and analysis of information, access to the track with black lines and gun feedback on the autonomous mobile trolley loop Feedback control; through the motor-driven and S12 to PWM control, making autonomous mobile trolley to the track in accordance with the regulations and to advance.

设计部分采用了Freescale16为单片机MC9S12DG128作为系统控制处理器，基于红外传感器检测道路信息，通过对信息的处理和分析，获取赛道黑线并结合测速反馈实现对自主移动小车的闭环反馈控制；还通过直流电机驱动和S12脉宽调制控制转向，使得自主移动小车能按照规定的轨迹前进和转向。

Both the simulation and experiment were carried on and the results showed: the generally used three-phased conduction of brushless DC motor should be regarded as a special case for DSC, corresponding to the highest speed running of DSC. The simple structure of DSC for BLDC produced excellent torque dynamic response within 1ms.

仿真与实验证明：常见的无刷直流电机三三导通方式可以看作是直接自控制的特例，对应直接自控制在全速运行；转矩动态响应时间不超过1ms。

The car's speed detecting adopts the revolving encoder to be installed in the as the tail shaft of the smart car.thus they respectively constitute two closed-loop control systems which are the direction changing and the car's speed.

摘 要：该智能车控制系统的硬件以MC9S12DG128单片机为核心，包括路径检测模块、车速检测模块、舵机转向模块、直流电机驱动模块、电源模块和通讯调试模块等部分。

Based on the principle of bionics and analysis of the movement mechanism of hexapod, a new type of miniature hexapod bio-robot was developed by using four-bar linkage, screw gearing, belt gear, driven by D.C. micromotor and controlled by PC.The external dimensions of the model machine are 30mm×40mm×20mm and its weight is 6.3 g.

基于仿生学原理，在分析六足昆虫运动机理的基础上，采用平面四连杆机构、蜗轮蜗杆减速机构、皮带传动机构、微型直流电机驱动和PC机控制方案，研制成一种新型&微型六足仿生机器人&，其样机外形尺寸为：长 30mm ，宽 4 0mm ，高 2 0mm ，重 6 。3g。

Based on the principle of bionics and analysis of the movement mechanism of hexapod, a new type of miniature hexapod bio-robot was developed by using four-bar linkage, screw gearing, belt gear, driven by D. C. micromotor and controlled by PC. The external dimensions of the model machine are 30mm×40mm×20mm and its weight is 6.3g.

基於仿生学原理，在分析六足昆虫运动机理的基础上，采用平面四连杆机构、蜗轮蜗杆减速机构、皮带传动机构、微型直流电机驱动和PC机控制方案，研制成一种新型&微型六足仿生机器人&，其样机外形尺寸为：长30mm，宽40mm，高20mm，重6.3g。

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。