跟读练习: Stepper Motors vs Servo Motors: A Quick Comparison - 通过YouTube学习英语口语
C1
⏸ 已暂停
Difference between stepper motors and server motors.
23 句
如果句子过短或过长，请点击 Edit 进行调整。
1
Difference between stepper motors and server motors.
2
First, they are different in start speed.
3
For stepper motors, it generally takes 200 to 400 milliseconds to start up, while server motors start several hundred times faster than that, taking only a few milliseconds.
4
Second, they are different in accuracy.
5
The accuracy of stepper motors depends on the number of phases and subdivision control of the stepper motor driver.
6
Nowadays, the maximum microstep subdivision of a stepper motor driver can achieve up to 25,600 steps per revolution.
7
However, the accuracy of a typical server motor is determined by the resolution of the encoder.
8
With a 17-digit encoder, 131,072 pulses are required for the motor to complete a full rotation.
9
As such, stepper motors rank supreme in terms of accuracy compared with their server counterparts.
10
These two motors also differ in their control systems.
11
Stable motors don't typically employ feedback systems, operating in an open-loop fashion.
12
In contrast, server motors operate with closed-loop control, which allows direct sampling of the built-in encoder's feedback signal,
13
making them more reliable than servo motors.
14
Overload capacity is another distinguishing factor between these two motor technologies.
15
Stable motors generally are not equipped to withstand overload so that they could lose steps at the presence of overload.
16
Servo motors, on the other hand, can overcome certain overload, hence better for varied load applications.
17
Cost is also an important aspect to consider when selecting the right motor motor.
18
Stable motors are generally more affordable and straightforward to operate, making them a popular choice for many applications.
19
In comparison, civil motors tend to be more expensive and require additional components for closed loop control.
20
In summary, civil systems outperform stable motors in many aspects, though featuring more complex control.
21
But if your project requires a motor solution that features simple operation, a smaller price tag, open loop control,
22
minimal positional errors, as well as other less demanding conditions, stable motors will be an excellent choice.
23
Visit ATL.com now and explore our wide range of stable motors and servo motors.
下载应用
Everything you need to speak fluently
AI PronunciationScore every sentence
IPA PracticeMaster every sound
VocabularyBuild your word bank
Vocab GameLearn while playing
关于本课
您正在使用跟读技巧通过视频"Stepper Motors vs Servo Motors: A Quick Comparison"练习英语口语和发音。
每天练习15到30分钟，将显著提高您的英语流利度和发音准确度。
什么是跟读法？
跟读法 (Shadowing) 是一种有科学依据的语言学习技巧，最初开发用于专业口译员的培训，并由多语言者Alexander Arguelles博士普及。这个方法简单而强大：您在听英语母语原声的同时立即大声重复——就像是一个延迟1-2秒紧跟说话者的影子。与被动听力或语法练习不同，跟读法强迫您的大脑和口腔肌肉同时处理并模仿真实的讲话模式。研究表明它能显着提高发音准确性，语调，节奏，连读，听力理解和口语流利度——使其成为雅思口语备考和真实英语交流最有效的方法之一。