armature characteristic

简明释义

电枢特性

英英释义

例句

1.The armature characteristic curve helps predict the efficiency of the machine.

该电枢特性曲线有助于预测机器的效率。

2.The engineer analyzed the armature characteristic to optimize the motor's performance.

工程师分析了电枢特性以优化电动机的性能。

3.Understanding the armature characteristic is essential for designing efficient generators.

理解电枢特性对设计高效发电机至关重要。

4.The armature characteristic of this motor indicates how it will respond under load.

该电动机的电枢特性指示它在负载下的响应情况。

5.During testing, we observed the armature characteristic change with varying supply voltage.

在测试过程中，我们观察到电枢特性随供电电压的变化而变化。

作文

In the field of electrical engineering, understanding the concept of armature characteristic is crucial for designing and analyzing electrical machines. The armature characteristic refers to the relationship between the armature current and the generated voltage in a machine, particularly in DC generators and motors. This characteristic plays a vital role in determining the performance and efficiency of these machines. To delve deeper into this concept, it is essential to first understand what an armature is. The armature is the component of an electrical machine that carries the current and generates magnetic fields. In a DC motor, for instance, the armature rotates within a magnetic field, which induces a voltage due to electromagnetic induction. The armature characteristic provides insights into how the armature responds to changes in load conditions and how it affects the overall operation of the machine.When analyzing the armature characteristic, engineers often plot a graph that illustrates the relationship between the armature current (I_a) and the terminal voltage (V_t). This graph typically shows that as the armature current increases, the terminal voltage also increases, up to a certain point. Beyond this point, the voltage may begin to drop due to various factors such as armature reaction and losses within the machine. Understanding this behavior is critical for engineers as it helps them predict the performance under different operational conditions.Moreover, the armature characteristic is influenced by several factors including the design of the armature winding, the strength of the magnetic field, and the speed of the armature rotation. For example, a well-designed armature with optimal winding can enhance the efficiency of the machine, resulting in better performance. Conversely, if the armature is poorly designed, it can lead to increased losses and reduced output voltage, which ultimately affects the machine's efficiency and reliability.In practical applications, engineers must consider the armature characteristic when selecting machines for specific tasks. For instance, in applications requiring high starting torque, a motor with a favorable armature characteristic will be preferred. This ensures that the motor can handle the initial load without significant drops in voltage or performance. Additionally, understanding the armature characteristic aids in troubleshooting issues that may arise during operation. If a machine is not performing as expected, analyzing its armature characteristic can help identify whether the problem lies within the armature itself or in other components of the system.In conclusion, mastering the concept of armature characteristic is essential for anyone involved in electrical engineering. It not only aids in the design and selection of machines but also plays a pivotal role in ensuring their efficient operation. As technology continues to evolve, the importance of understanding armature characteristic will only increase, making it a fundamental aspect of electrical machine analysis and design.

在电气工程领域，理解“电枢特性”这一概念对于设计和分析电气机器至关重要。“电枢特性”指的是电机中电枢电流与生成电压之间的关系，尤其是在直流发电机和电动机中。这一特性在确定这些机器的性能和效率方面起着重要作用。要深入了解这一概念，首先必须了解什么是电枢。电枢是电气机器的组成部分，承载电流并产生磁场。例如，在直流电动机中，电枢在磁场中旋转，由于电磁感应产生电压。“电枢特性”提供了有关电枢如何响应负载条件变化以及如何影响机器整体操作的见解。在分析“电枢特性”时，工程师通常绘制一张图表，说明电枢电流（I_a）与端子电压（V_t）之间的关系。该图表通常显示，随着电枢电流的增加，端子电压也会增加，直到某个点。超出此点后，由于电枢反应和机器内部损耗等各种因素，电压可能开始下降。理解这种行为对工程师至关重要，因为它帮助他们预测在不同操作条件下的性能。此外，“电枢特性”受到多个因素的影响，包括电枢绕组的设计、磁场的强度以及电枢旋转的速度。例如，设计良好的电枢与最佳绕组可以提高机器的效率，从而实现更好的性能。相反，如果电枢设计不当，可能导致损耗增加和输出电压降低，最终影响机器的效率和可靠性。在实际应用中，工程师在选择特定任务所需的机器时，必须考虑“电枢特性”。例如，在需要高启动扭矩的应用中，将优先选择具有良好“电枢特性”的电动机。这确保电动机能够在没有显著电压或性能下降的情况下处理初始负载。此外，理解“电枢特性”有助于排除在操作过程中可能出现的问题。如果一台机器的表现未达预期，分析其“电枢特性”可以帮助识别问题是否出在电枢本身还是系统的其他组件上。总之，掌握“电枢特性”的概念对于任何从事电气工程的人来说都是必不可少的。它不仅有助于机器的设计和选择，还在确保其高效运行方面发挥着关键作用。随着技术的不断发展，理解“电枢特性”的重要性只会增加，使其成为电气机器分析和设计的基本方面。