high resistance voltmeter

简明释义

高阻伏特计

英英释义

例句

1.For troubleshooting electronic devices, using a high resistance voltmeter 高阻抗电压表 is recommended to prevent circuit loading.

在排查电子设备故障时，建议使用高阻抗电压表 高阻抗电压表以防止电路负载。

2.In laboratory experiments, a high resistance voltmeter 高阻抗电压表 is crucial for measuring small voltage levels accurately.

在实验室实验中，高阻抗电压表 高阻抗电压表对于准确测量小电压水平至关重要。

3.A high resistance voltmeter 高阻抗电压表 can help ensure accurate readings in circuits with sensitive components.

在具有敏感元件的电路中，高阻抗电压表 高阻抗电压表可以帮助确保准确的读数。

4.Using a high resistance voltmeter 高阻抗电压表 allows you to measure the potential difference without affecting the circuit operation.

使用高阻抗电压表 高阻抗电压表可以在不影响电路操作的情况下测量电势差。

5.When measuring the voltage across a capacitor, it is essential to use a high resistance voltmeter 高阻抗电压表 to avoid discharging the capacitor.

在测量电容器两端的电压时，使用高阻抗电压表 高阻抗电压表是必不可少的，以避免放电。

作文

In the world of electrical engineering, precision and accuracy are paramount. One of the essential tools that engineers and technicians utilize to measure voltage is the high resistance voltmeter. This instrument is specifically designed to measure the potential difference between two points in an electrical circuit while minimizing the current drawn from the circuit itself. The significance of a high resistance voltmeter lies in its ability to provide accurate readings without significantly affecting the operation of the circuit being tested.A high resistance voltmeter operates on the principle that it has a very high internal resistance, typically in the range of megaohms. This high resistance ensures that when the voltmeter is connected to a circuit, it does not draw substantial current. If a voltmeter with low resistance were used, it would create a parallel path for the current, leading to inaccurate voltage measurements due to the loading effect. This loading effect can distort the actual voltage present in the circuit, making it crucial to use a high resistance voltmeter for precise measurements.The construction of a high resistance voltmeter usually involves components such as resistors, operational amplifiers, and analog-to-digital converters, depending on whether the device is analog or digital. Digital high resistance voltmeters are increasingly popular due to their ease of use and ability to provide direct numerical readings. They also often include features such as data logging and connectivity options for further analysis. Analog versions, while less common now, still hold value in certain applications where simplicity and reliability are required.One common application of a high resistance voltmeter is in testing and troubleshooting electronic circuits. For instance, when diagnosing a malfunctioning circuit, an engineer may use this tool to determine whether the correct voltage is being supplied to various components. By using a high resistance voltmeter, they can obtain accurate voltage readings without influencing the circuit's behavior, allowing for effective troubleshooting.Moreover, high resistance voltmeters are vital in educational settings, particularly in physics and electronics laboratories. Students learn the importance of measuring voltage accurately and the implications of circuit loading. Using a high resistance voltmeter helps them grasp fundamental concepts about electricity and circuit theory, preparing them for more advanced studies in electrical engineering or related fields.In summary, the high resistance voltmeter is an indispensable tool in the realm of electrical measurement. Its design minimizes the impact on the circuit under test, allowing for accurate voltage readings. Whether in professional engineering environments or educational institutions, understanding how to effectively use a high resistance voltmeter is crucial for anyone involved in the field of electronics. As technology continues to advance, the role of high resistance voltmeters will likely evolve, but their fundamental purpose of providing reliable voltage measurements will remain constant.

在电气工程的世界中，精确和准确至关重要。工程师和技术人员使用的一种基本工具是高阻抗电压表，用于测量电路中两点之间的电压。这种仪器专门设计用于测量电位差，同时最小化从电路中提取的电流。高阻抗电压表的重要性在于它能够提供准确的读数，而不会显著影响被测试电路的操作。高阻抗电压表的工作原理是其内部电阻非常高，通常在兆欧姆范围内。这种高电阻确保当电压表连接到电路时，不会抽取大量电流。如果使用低电阻的电压表，它将为电流创造一个并联路径，导致由于负载效应而产生不准确的电压测量。这个负载效应会扭曲电路中实际存在的电压，因此在进行精确测量时使用高阻抗电压表至关重要。高阻抗电压表的构造通常包括电阻器、运算放大器和模拟-数字转换器，具体取决于该设备是模拟还是数字。数字高阻抗电压表因其易用性和提供直接数值读数的能力而越来越受欢迎。它们还通常包括数据记录和进一步分析的连接选项。尽管现在模拟版本不太常见，但在某些需要简单性和可靠性的应用中仍然具有价值。高阻抗电压表的一个常见应用是在测试和故障排除电子电路时。例如，在诊断故障电路时，工程师可能会使用此工具来确定是否向各种组件提供了正确的电压。通过使用高阻抗电压表，他们可以获得准确的电压读数，而不影响电路的行为，从而有效地进行故障排除。此外，高阻抗电压表在教育环境中至关重要，特别是在物理和电子实验室中。学生们学习准确测量电压的重要性以及电路负载的影响。使用高阻抗电压表帮助他们掌握电力和电路理论的基本概念，为他们在电气工程或相关领域的更高级研究做好准备。总之，高阻抗电压表是电气测量领域中不可或缺的工具。其设计最小化了对被测试电路的影响，从而允许准确的电压读数。无论是在专业工程环境还是教育机构，了解如何有效使用高阻抗电压表对于任何参与电子领域的人来说都是至关重要的。随着技术的不断进步，高阻抗电压表的作用可能会发展，但其提供可靠电压测量的基本目的将保持不变。