commutator ammeter

简明释义

转换开关式安培表

英英释义

例句

1.The technician used a commutator ammeter to measure the current in the generator.

技术员使用了一个换向器电流表来测量发电机中的电流。

2.When troubleshooting the motor, the engineer checked the commutator ammeter for any irregularities.

在排查电机故障时，工程师检查了换向器电流表是否有任何异常。

3.To ensure accuracy, the commutator ammeter should be calibrated regularly.

为了确保准确性，换向器电流表应该定期校准。

4.During the experiment, we connected the commutator ammeter to monitor the circuit's performance.

在实验中，我们连接了换向器电流表来监测电路的性能。

5.The commutator ammeter displayed a steady reading, indicating stable current flow.

该换向器电流表显示出稳定的读数，表明电流流动稳定。

作文

The world of electrical engineering is filled with various instruments that help us measure and understand the behavior of electric currents. One such instrument is the commutator ammeter, which plays a crucial role in measuring direct current (DC) in circuits. To fully grasp the significance of a commutator ammeter, it is essential to understand its components, functionality, and applications.A commutator ammeter consists of several key parts, including a moving coil, a commutator, and a scale for reading measurements. The moving coil is placed in a magnetic field, and when current flows through it, the coil experiences a torque due to the interaction between the magnetic field and the electric current. This torque causes the coil to rotate, which is then translated into a measurable deflection on the scale. The commutator is a vital component as it converts the alternating current (AC) into direct current (DC), allowing the ammeter to provide accurate readings.Understanding the operation of a commutator ammeter requires some knowledge of electromagnetic principles. When the coil rotates within the magnetic field, it generates a voltage proportional to the current flowing through it. The commutator ensures that this voltage remains unidirectional, which is essential for achieving consistent and reliable readings. The design of the commutator ammeter allows it to be highly sensitive, making it suitable for measuring small currents in delicate electronic circuits.The applications of a commutator ammeter are vast and varied. In laboratories, engineers and scientists use it to conduct experiments that require precise measurements of current. It is also widely used in educational settings to teach students about electric circuits and the principles of electromagnetism. Additionally, commutator ammeters are employed in industries where monitoring DC current is critical, such as in battery testing and electric vehicle systems.One of the significant advantages of using a commutator ammeter is its accuracy. Unlike other types of ammeters, which may have limitations in measuring DC due to their reliance on AC principles, the commutator ammeter is specifically designed for DC measurements. This makes it an indispensable tool for professionals working with direct current applications.However, it is important to note that while commutator ammeters are effective, they also come with some limitations. For instance, they can be affected by external magnetic fields, which may lead to erroneous readings. Additionally, the mechanical components of the ammeter can wear out over time, requiring regular maintenance to ensure continued accuracy.In conclusion, the commutator ammeter is a vital instrument in the field of electrical engineering, providing accurate measurements of direct current. Its unique design, which includes a moving coil and a commutator, allows it to function effectively in various applications, from laboratory experiments to industrial settings. Understanding how a commutator ammeter works and its significance in measuring DC can enhance our appreciation of the complexities involved in electrical engineering and the importance of precise measurements in technology today.

电气工程的世界充满了各种仪器，这些仪器帮助我们测量和理解电流的行为。其中一种仪器是换向器安培计，它在测量电路中的直流电（DC）方面发挥着至关重要的作用。要充分理解换向器安培计的重要性，必须理解其组成部分、功能和应用。换向器安培计由几个关键部分组成，包括移动线圈、换向器和用于读取测量值的刻度。移动线圈置于磁场中，当电流通过时，线圈由于磁场与电流之间的相互作用而产生扭矩。这个扭矩使线圈旋转，然后被转换为刻度上的可测量偏转。换向器是一个重要的组件，因为它将交流电（AC）转换为直流电（DC），使电流表能够提供准确的读数。理解换向器安培计的操作需要一些电磁原理的知识。当线圈在磁场中旋转时，它会产生与流过的电流成正比的电压。换向器确保该电压保持单向，这对于实现一致和可靠的读数至关重要。换向器安培计的设计使其具有高度灵敏度，非常适合测量精密电子电路中的小电流。换向器安培计的应用范围广泛。在实验室中，工程师和科学家使用它进行需要精确电流测量的实验。它在教育环境中也被广泛使用，以教导学生有关电路和电磁学原理。此外，换向器安培计还被用于监测直流电至关重要的行业，例如电池测试和电动汽车系统。使用换向器安培计的一个显著优势是其准确性。与其他类型的安培计相比，后者可能由于依赖交流原理而在测量直流电时存在局限性，换向器安培计专门设计用于直流电测量。这使得它成为从事直流电应用的专业人员不可或缺的工具。然而，重要的是要注意，虽然换向器安培计有效，但它们也有一些局限性。例如，它们可能受到外部磁场的影响，这可能导致错误的读数。此外，安培计的机械组件可能随着时间的推移而磨损，需要定期维护以确保持续的准确性。总之，换向器安培计是电气工程领域的一种重要仪器，提供准确的直流电测量。其独特的设计，包括移动线圈和换向器，使其能够在实验室实验到工业环境等各种应用中有效运行。了解换向器安培计的工作原理及其在直流电测量中的重要性，可以增强我们对电气工程复杂性的欣赏，以及在当今技术中精确测量的重要性。