mirror galvanometer

简明释义

镜式检流计

英英释义

例句

1.In the laboratory, the mirror galvanometer 镜面电流计 was essential for detecting minute changes in voltage.

在实验室中，镜面电流计对于检测电压的微小变化至关重要。

2.The scientist used a mirror galvanometer 镜面电流计 to measure the tiny electrical currents in the circuit.

科学家使用了一个镜面电流计来测量电路中的微小电流。

3.During the physics experiment, we calibrated the mirror galvanometer 镜面电流计 to ensure accurate readings.

在物理实验中，我们校准了镜面电流计以确保读数准确。

4.The mirror galvanometer 镜面电流计 provides a visual indication of current flow through its moving mirror.

通过其移动的镜子，镜面电流计提供了电流流动的视觉指示。

5.To demonstrate electromagnetic principles, the teacher used a mirror galvanometer 镜面电流计 in class.

为了演示电磁原理，老师在课堂上使用了一个镜面电流计。

作文

The concept of a mirror galvanometer is essential in the field of physics, particularly in the study of electromagnetism. A mirror galvanometer is an instrument used to measure small electric currents by utilizing the deflection of a beam of light reflected from a mirror. The basic principle behind this device is that when an electric current passes through a coil placed in a magnetic field, it experiences a torque that causes it to rotate. This rotation moves the attached mirror, which in turn reflects a beam of light onto a scale, allowing for precise measurement of the current. Understanding the working of a mirror galvanometer requires knowledge of several fundamental concepts in physics. First, let's discuss the role of the coil and the magnetic field. When the current flows through the coil, it generates a magnetic field around it. According to Ampère's law, this magnetic field interacts with the external magnetic field, resulting in a force that acts on the coil. The amount of deflection is proportional to the strength of the current flowing through the coil, making the mirror galvanometer an effective tool for measuring electrical currents.Another significant aspect of the mirror galvanometer is its sensitivity. The use of a mirror greatly enhances the sensitivity of the instrument. Since the deflection of light is magnified due to the distance between the mirror and the scale, even minute changes in current can be detected. This characteristic makes the mirror galvanometer invaluable in laboratory settings where precise measurements are critical.In addition to its sensitivity, the mirror galvanometer also offers a rapid response time. As soon as the current changes, the coil responds almost instantaneously, leading to immediate deflection of the beam of light. This feature is particularly useful in experiments where current fluctuations occur quickly, allowing scientists to observe real-time changes in electrical currents.The application of the mirror galvanometer extends beyond mere measurement; it has historical significance as well. In the 19th century, it played a crucial role in the development of telegraphy and other communication technologies. Engineers relied on the mirror galvanometer to detect signals transmitted over long distances, paving the way for advancements in electrical engineering and telecommunications.Moreover, the mirror galvanometer has been instrumental in educational settings, where it serves as a teaching tool for demonstrating principles of electromagnetism. Students can visually observe the effects of electric currents and magnetic fields, enhancing their understanding of these concepts. By experimenting with a mirror galvanometer, learners can gain hands-on experience, reinforcing theoretical knowledge with practical application.In conclusion, the mirror galvanometer is not just a measuring instrument; it embodies the intersection of theory and practice in the realm of physics. Its ability to measure small currents with high sensitivity and rapid response has made it a vital tool in both historical and modern contexts. As technology continues to evolve, the principles underlying the mirror galvanometer will undoubtedly remain relevant, inspiring future innovations in measurement and electrical engineering.

“镜子电流计”是物理学领域中的一个重要概念，尤其是在电磁学的研究中。“镜子电流计”是一种用于通过反射镜的光束偏转来测量微小电流的仪器。该设备的基本原理是，当电流通过放置在磁场中的线圈时，会产生扭矩，使其旋转。这种旋转使附着的镜子移动，从而反射光束到刻度上，允许精确测量电流。理解“镜子电流计”的工作原理需要掌握几个基本的物理概念。首先，让我们讨论线圈和磁场的作用。当电流流过线圈时，它会在周围产生一个磁场。根据安培定律，这个磁场与外部磁场相互作用，导致作用于线圈的力。偏转的大小与流经线圈的电流强度成正比，使“镜子电流计”成为有效的电流测量工具。“镜子电流计”的另一个显著特征是其灵敏度。镜子的使用大大增强了仪器的灵敏度。由于光的偏转因镜子与刻度之间的距离而被放大，即使是微小的电流变化也能被检测到。这一特性使得“镜子电流计”在需要精确测量的实验室环境中极具价值。除了灵敏度，“镜子电流计”还具有快速响应时间。一旦电流发生变化，线圈几乎瞬间响应，导致光束的立即偏转。这个特性在电流波动迅速发生的实验中尤为有用，使科学家能够观察电流的实时变化。“镜子电流计”的应用不仅限于测量；它还有历史意义。在19世纪，它在电报和其他通信技术的发展中发挥了至关重要的作用。工程师依赖“镜子电流计”检测长距离传输的信号，为电气工程和电信技术的进步铺平了道路。此外，“镜子电流计”在教育环境中也起着重要作用，作为演示电磁学原理的教学工具。学生可以直观地观察电流和磁场的影响，加深对这些概念的理解。通过实验“镜子电流计”，学习者可以获得实践经验，将理论知识与实际应用结合起来。总之，“镜子电流计”不仅仅是一种测量仪器；它体现了物理学领域理论与实践的交汇。其以高灵敏度和快速响应测量微小电流的能力，使其成为历史和现代背景下的重要工具。随着技术的不断发展，支撑“镜子电流计”的原理无疑将保持相关性，激励未来在测量和电气工程领域的创新。