permanent magnet moving coil meter

简明释义

永磁动圈式仪表

英英释义

例句

1.When testing batteries, I prefer using a permanent magnet moving coil meter for its reliability.

在测试电池时，我更喜欢使用永久磁铁动圈表，因为它可靠。

2.The readings from the permanent magnet moving coil meter were consistent across multiple trials.

多次试验中，永久磁铁动圈表的读数是一致的。

3.In the lab, we rely on a permanent magnet moving coil meter for precise voltage readings.

在实验室中，我们依赖永久磁铁动圈表进行精确的电压读数。

4.The permanent magnet moving coil meter is essential for calibrating our electrical instruments.

永久磁铁动圈表对于校准我们的电气仪器至关重要。

5.The technician used a permanent magnet moving coil meter to accurately measure the current flowing through the circuit.

技术员使用永久磁铁动圈表准确测量电路中的电流。

作文

The world of electrical measurement is vast and intricate, with various instruments designed to provide accurate readings of voltage, current, and resistance. One such instrument that has stood the test of time is the permanent magnet moving coil meter. This device is widely used in laboratories, industries, and even in households for measuring direct current (DC) and sometimes alternating current (AC). Understanding how this meter works and its significance can greatly enhance our knowledge of electrical engineering principles.At its core, the permanent magnet moving coil meter operates on the principle of electromagnetism. It consists of a coil of wire suspended in a magnetic field created by a permanent magnet. When electric current flows through the coil, it generates a magnetic field around it, which interacts with the field of the permanent magnet. This interaction causes the coil to rotate, and the degree of rotation is proportional to the amount of current flowing through the coil. The rotation is then translated into a reading on a calibrated scale, allowing users to determine the current's strength.One of the key advantages of the permanent magnet moving coil meter is its accuracy. These meters are known for their ability to provide precise measurements, which is essential in many applications where even a slight deviation can lead to significant consequences. For instance, in scientific research, accurate data is crucial for validating hypotheses and theories. Similarly, in industrial settings, precise measurements ensure that machinery operates efficiently and safely.Moreover, the permanent magnet moving coil meter is relatively simple in design, making it easy to use and maintain. Unlike digital meters that require batteries or external power sources, this analog device relies solely on the mechanical movement of the coil, which means it can function in a variety of environments without the need for additional power. This feature makes it particularly valuable in remote locations or situations where electricity is not readily available.However, despite its many advantages, the permanent magnet moving coil meter also has limitations. For example, it is primarily designed for measuring DC currents, and while some models can measure AC currents, they often require additional components to do so accurately. Additionally, these meters can be influenced by external magnetic fields, which may affect their readings. Therefore, it is essential for users to be aware of their surroundings when taking measurements to ensure accuracy.In conclusion, the permanent magnet moving coil meter is an essential tool in the field of electrical measurement. Its accuracy, simplicity, and reliability make it a preferred choice for many professionals and enthusiasts alike. By understanding its operation and applications, we can appreciate the importance of this device in various fields, from scientific research to industrial manufacturing. As technology continues to evolve, the fundamental principles behind the permanent magnet moving coil meter remain relevant, reminding us of the enduring nature of basic electrical concepts and their application in our modern world.

电气测量的世界广阔而复杂，设计了各种仪器以提供电压、电流和电阻的准确读数。其中一种经受住时间考验的仪器是永久磁铁动圈表。这种设备广泛用于实验室、工业，甚至家庭中，用于测量直流电（DC），有时也用于交流电（AC）。理解这种仪器的工作原理及其重要性，可以极大地增强我们对电气工程原理的认识。永久磁铁动圈表的核心原理是电磁学。它由一圈悬挂在永久磁铁产生的磁场中的导线组成。当电流通过线圈时，在线圈周围会产生一个磁场，这个磁场与永久磁铁的磁场相互作用。这个相互作用导致线圈旋转，旋转的程度与通过线圈的电流量成正比。然后，这种旋转被转换为校准刻度上的读数，使用户能够确定电流的强度。永久磁铁动圈表的一个主要优点是其准确性。这些仪器以提供精确的测量而闻名，这在许多应用中至关重要，因为即使是微小的偏差也可能导致重大后果。例如，在科学研究中，准确的数据对于验证假设和理论至关重要。同样，在工业环境中，精确的测量确保机器高效、安全地运行。此外，永久磁铁动圈表的设计相对简单，易于使用和维护。与需要电池或外部电源的数字仪表不同，这种模拟设备仅依赖于线圈的机械运动，这意味着它可以在各种环境中运作，而无需额外的电力。这一特性使其在偏远地区或电力不易获得的情况下特别有价值。然而，尽管有许多优点，永久磁铁动圈表也有其局限性。例如，它主要设计用于测量直流电流，虽然某些型号可以测量交流电流，但通常需要额外组件才能准确测量。此外，这些仪器可能会受到外部磁场的影响，从而影响其读数。因此，用户在进行测量时，了解周围环境以确保准确性是至关重要的。总之，永久磁铁动圈表是电气测量领域的重要工具。其准确性、简单性和可靠性使其成为许多专业人士和爱好者的首选。通过理解其操作和应用，我们可以欣赏到这一设备在科学研究到工业制造等各个领域的重要性。随着技术的不断发展，永久磁铁动圈表背后的基本原理仍然相关，提醒我们基本电气概念的持久性及其在现代世界中的应用。