volt ammeter

简明释义

电压电流两用表

英英释义

例句

1.If the volt ammeter 电压安培计 shows a negative value, it indicates reverse polarity.

如果电压安培计显示负值，则表示极性反转。

2.To measure the current flowing through the circuit, connect the volt ammeter 电压安培计 in series.

要测量电路中流动的电流，请将电压安培计串联连接。

3.Before starting the experiment, make sure to calibrate the volt ammeter 电压安培计 for accurate readings.

在开始实验之前，确保校准电压安培计以获得准确的读数。

4.The volt ammeter 电压安培计 displayed a reading of 5 volts during the test.

测试期间，电压安培计显示的读数为5伏特。

5.The technician used a volt ammeter 电压安培计 to check the voltage across the resistor.

技术人员使用电压安培计检查电阻器两端的电压。

作文

In the world of electronics, understanding various instruments is crucial for effective measurement and analysis. One such instrument is the volt ammeter, which plays a vital role in electrical engineering and physics. A volt ammeter (电压表) is a device used to measure both voltage and current in an electrical circuit. This dual functionality makes it an essential tool for engineers, technicians, and hobbyists alike. The volt ammeter operates on the principle of measuring the potential difference between two points in a circuit while simultaneously gauging the current flowing through that circuit. Voltage, measured in volts, indicates the electric potential energy per unit charge, while current, measured in amperes, represents the flow of electric charge. By combining these two measurements, a volt ammeter provides comprehensive insights into an electrical system's performance. One of the primary advantages of using a volt ammeter is its ability to diagnose electrical issues. For instance, if a circuit is not functioning correctly, an engineer can use the device to check for voltage drops or irregular current flows. These anomalies can indicate problems such as short circuits, faulty components, or inadequate power supply. By identifying these issues early, technicians can prevent further damage and ensure the reliability of the electrical system.Moreover, the volt ammeter is indispensable in educational settings, where students learn about electrical principles and circuit design. By utilizing this instrument in laboratory experiments, students gain hands-on experience with real-world applications of theoretical knowledge. Understanding how to read and interpret the measurements from a volt ammeter fosters critical thinking and problem-solving skills, which are essential in any engineering discipline.The versatility of the volt ammeter extends beyond simple measurements. Many modern versions come equipped with digital displays and advanced features such as data logging and connectivity options. These enhancements allow users to track changes over time, analyze trends, and even interface with computers for more detailed analysis. Such capabilities are particularly beneficial in research and development environments, where precise measurements are paramount.In conclusion, the volt ammeter (电压表) is an invaluable tool in the field of electronics. Its ability to measure both voltage and current makes it essential for diagnosing problems, conducting experiments, and enhancing educational experiences. As technology continues to advance, the volt ammeter will undoubtedly evolve, further solidifying its place as a cornerstone instrument in electrical engineering. Understanding how to effectively utilize this device is crucial for anyone involved in the study or application of electrical systems, ensuring they can navigate the complexities of modern technology with confidence.