moving coil instrument

简明释义

动圈式测量仪表

英英释义

例句

1.The technician used a moving coil instrument to measure the current flowing through the circuit.

技术员使用了一个动圈仪表来测量电路中的电流。

2.To ensure safety, always check the voltage with a reliable moving coil instrument before working on electrical systems.

在处理电气系统之前，请始终使用可靠的动圈仪表检查电压以确保安全。

3.The moving coil instrument is widely used in laboratories for its precision.

由于其精确性，动圈仪表在实验室中被广泛使用。

4.The moving coil instrument displayed a steady reading, indicating stable power supply.

该动圈仪表显示出稳定的读数，表明电源稳定。

5.In audio applications, a moving coil instrument can provide accurate sound level readings.

在音频应用中，动圈仪表可以提供准确的声音水平读数。

作文

In the field of electrical engineering, measuring instruments play a crucial role in ensuring that devices operate efficiently and safely. One such device that has stood the test of time is the moving coil instrument, which is widely used for measuring current and voltage in various applications. Understanding how this instrument works and its significance can greatly enhance our knowledge of electrical measurements.The basic principle behind the moving coil instrument is electromagnetic induction. When an electric current passes through a coil placed in a magnetic field, it experiences a force that causes it to move. This movement is proportional to the strength of the current flowing through the coil. The moving coil instrument typically consists of a coil of wire suspended in a magnetic field, usually created by permanent magnets. As current flows through the coil, it rotates, and this rotation is translated into a reading on a calibrated scale.One of the key advantages of the moving coil instrument is its accuracy. These instruments are known for their high precision and sensitivity, making them ideal for laboratory settings and industrial applications where accurate measurements are essential. Unlike other types of measuring instruments, the moving coil instrument provides a linear response, meaning that the deflection of the pointer on the scale is directly proportional to the current or voltage being measured. This feature simplifies the process of reading measurements, as users can easily interpret the values without complicated calculations.Moreover, the moving coil instrument is relatively easy to use. It typically features a simple dial and pointer mechanism, allowing users to quickly take readings. This user-friendly design has contributed to its popularity in educational settings, where students learn about electrical measurements and circuit theory. Additionally, the durability of the moving coil instrument makes it suitable for a variety of environments, from laboratories to fieldwork.However, despite its many advantages, the moving coil instrument does have some limitations. For instance, it is primarily designed for measuring direct current (DC) and low-frequency alternating current (AC). When it comes to high-frequency AC measurements, the performance of the moving coil instrument may not be as reliable. As technology has advanced, more sophisticated instruments have been developed to handle a wider range of frequencies and electrical parameters. Nevertheless, the moving coil instrument remains a fundamental tool in the arsenal of electrical engineers and technicians.In conclusion, the moving coil instrument is an essential device in the realm of electrical measurements. Its principles of operation based on electromagnetic induction, combined with its accuracy and ease of use, make it a valuable tool for both professionals and students alike. While it may have some limitations, its historical significance and continued relevance in various applications cannot be overlooked. As we continue to advance in technology, understanding traditional instruments like the moving coil instrument provides a solid foundation for appreciating modern innovations in measurement techniques.

在电气工程领域，测量仪器在确保设备高效和安全运行方面发挥着至关重要的作用。其中一种经受住时间考验的设备是动圈仪表，它广泛用于各种应用中的电流和电压测量。理解这种仪器的工作原理及其重要性，可以大大增强我们对电气测量的认识。动圈仪表的基本原理是电磁感应。当电流通过放置在磁场中的线圈时，它会受到一种力的作用，导致其移动。这种运动与流经线圈的电流强度成正比。动圈仪表通常由悬挂在磁场中的线圈组成，磁场通常由永久磁铁产生。当电流流过线圈时，它会旋转，这种旋转被转换为标定刻度上的读数。动圈仪表的一个主要优点是其准确性。这些仪器以其高精度和灵敏度而闻名，非常适合在实验室和工业应用中进行准确测量。在其他类型的测量仪器中，动圈仪表提供线性响应，即指针在刻度上的偏转与所测量的电流或电压直接成正比。这一特性简化了读数过程，因为用户可以轻松解释值，而无需复杂的计算。此外，动圈仪表相对易于使用。它通常具有简单的表盘和指针机制，使用户能够快速进行读数。这种用户友好的设计促成了它在教育环境中的普及，学生们在这里学习电气测量和电路理论。此外，动圈仪表的耐用性使其适用于从实验室到现场工作的各种环境。然而，尽管有许多优点，动圈仪表确实存在一些局限性。例如，它主要设计用于测量直流（DC）和低频交流（AC）。在高频交流测量方面，动圈仪表的性能可能不那么可靠。随着技术的进步，已经开发出更复杂的仪器，以处理更广泛的频率和电气参数。然而，动圈仪表仍然是电气工程师和技术人员工具箱中的基本工具。总之，动圈仪表是电气测量领域的一种重要设备。其基于电磁感应的操作原理，加上其准确性和易用性，使其成为专业人士和学生的宝贵工具。尽管它可能有一些局限性，但其历史意义和在各种应用中的持续相关性不可忽视。随着我们在技术上不断进步，理解像动圈仪表这样的传统仪器为欣赏现代测量技术的创新提供了坚实的基础。