moving coil instrument

简明释义

动圈式仪表

英英释义

例句

1.During the experiment, the moving coil instrument displayed a steady reading.

在实验过程中，动圈仪器显示出稳定的读数。

2.We calibrated the moving coil instrument before starting the measurements.

我们在开始测量之前对动圈仪器进行了校准。

3.In the lab, we often rely on a moving coil instrument for accurate voltage readings.

在实验室中，我们经常依赖动圈仪器进行精确的电压测量。

4.The technician used a moving coil instrument to measure the current in the circuit.

技术员使用动圈仪器测量电路中的电流。

5.The moving coil instrument is known for its high sensitivity and accuracy.

该动圈仪器以其高灵敏度和准确性而闻名。

作文

The world of electrical measurements is vast and varied, with numerous instruments designed to capture and display data accurately. Among these, the moving coil instrument stands out as one of the most reliable and widely used devices for measuring electric current and voltage. This instrument operates on the principle of electromagnetic induction, where a coil of wire is placed in a magnetic field. As electric current passes through the coil, it generates a force that causes the coil to move. This movement is then translated into a reading on a calibrated scale, allowing users to gauge the amount of current or voltage being measured.The design of the moving coil instrument is both simple and effective. It typically consists of a coil wound around a metal frame, which is suspended within a permanent magnet's field. The coil is connected to a pointer that moves over a graduated scale. The accuracy of this instrument is largely dependent on the strength of the magnetic field and the quality of the coil construction. One significant advantage of the moving coil instrument is its linearity; it provides a direct proportionality between the current and the deflection of the needle, making it easy for users to interpret the readings.In practical applications, moving coil instruments are commonly found in analog multimeters, ammeters, and voltmeters. These devices are essential tools in laboratories, educational institutions, and various industries where precise measurements are crucial. For instance, electricians rely on moving coil instruments to ensure that electrical installations meet safety standards and function correctly. Additionally, these instruments are often used in research settings, where accurate data collection is vital for experiments and studies.However, like all instruments, moving coil instruments have their limitations. They are generally more sensitive to mechanical shocks and vibrations, which can affect their accuracy. Furthermore, they are not suitable for measuring high-frequency currents, as the response time may not be fast enough to capture rapid changes in current flow. Despite these drawbacks, the reliability and ease of use of moving coil instruments make them a preferred choice for many applications.In conclusion, the moving coil instrument is a fundamental tool in the field of electrical measurements. Its design, based on simple yet effective principles of electromagnetism, allows for accurate and straightforward readings of electric current and voltage. While there are some limitations regarding sensitivity and frequency response, the advantages of using a moving coil instrument far outweigh the disadvantages in most practical scenarios. As technology continues to advance, these instruments will likely evolve, but their core principles will remain relevant for years to come. Understanding the functionality and applications of the moving coil instrument is crucial for anyone involved in electrical engineering or related fields, as it lays the foundation for more complex measurement techniques and devices.

电气测量的世界广阔而多样，设计了许多仪器以准确捕捉和显示数据。在这些仪器中，动圈仪表作为一种最可靠和广泛使用的设备之一，突显出其在测量电流和电压方面的重要性。该仪器基于电磁感应原理工作，其中一根电线圈置于磁场中。当电流通过线圈时，会产生一个力，使线圈移动。然后，这种运动被转换为标定刻度上的读数，使用户能够评估所测量的电流或电压的数量。动圈仪表的设计既简单又有效。它通常由绕在金属框架上的线圈组成，该线圈悬挂在永久磁体的磁场中。线圈连接到一个指针上，指针在刻度上移动。该仪器的准确性在很大程度上依赖于磁场的强度和线圈结构的质量。动圈仪表的一大优点是其线性；它提供了电流与指针偏转之间的直接比例关系，使用户易于解读读数。在实际应用中，动圈仪表通常出现在模拟万用表、电流表和电压表中。这些设备是实验室、教育机构和各种行业中必不可少的工具，在这些领域，精确的测量至关重要。例如，电工依赖于动圈仪表来确保电气安装符合安全标准并正常运行。此外，这些仪器常用于研究环境中，在那里，准确的数据收集对实验和研究至关重要。然而，像所有仪器一样，动圈仪表也有其局限性。它们通常对机械冲击和振动更加敏感，这可能会影响其准确性。此外，它们不适合测量高频电流，因为响应时间可能不足以捕捉电流流动的快速变化。尽管存在这些缺点，动圈仪表的可靠性和易用性使其成为许多应用中的首选。总之，动圈仪表是电气测量领域的基本工具。其基于简单而有效的电磁原理的设计，允许对电流和电压进行准确和直接的读数。尽管在灵敏度和频率响应方面存在一些限制，但在大多数实际场景中，使用动圈仪表的优势远远超过了劣势。随着技术的不断进步，这些仪器可能会不断演变，但其核心原理将在未来几年保持相关性。理解动圈仪表的功能和应用对于任何参与电气工程或相关领域的人都至关重要，因为它为更复杂的测量技术和设备奠定了基础。