vacuum gauge

简明释义

真空表

英英释义

例句

1.The technician used a vacuum gauge to measure the pressure inside the chamber.

技术员使用真空计来测量腔体内的压力。

2.The vacuum gauge indicated a pressure drop, signaling a leak in the system.

该真空计显示压力下降，表明系统中存在泄漏。

3.We need to replace the old vacuum gauge to ensure reliable measurements.

我们需要更换旧的真空计以确保可靠的测量结果。

4.A digital vacuum gauge can provide more accurate readings than an analog one.

数字真空计可以提供比模拟仪器更准确的读数。

5.Before starting the experiment, ensure that the vacuum gauge is calibrated correctly.

在开始实验之前，请确保真空计已正确校准。

作文

In the world of science and engineering, precise measurements are crucial for successful experimentation and production processes. One of the key instruments used to measure pressure in a vacuum system is the vacuum gauge. A vacuum gauge is an instrument that measures the pressure of gases in a vacuum environment, allowing scientists and engineers to monitor and control the conditions under which experiments or manufacturing processes occur. Understanding how a vacuum gauge works and its applications can be beneficial in various fields, including physics, chemistry, and industrial manufacturing.The basic principle behind a vacuum gauge is to measure the amount of pressure exerted by gas molecules in a given space. In a vacuum, the number of gas molecules is significantly reduced compared to atmospheric pressure, leading to lower pressure readings. There are several types of vacuum gauges, each utilizing different methods to provide accurate measurements. Some common types include mechanical gauges, electronic gauges, and thermal conductivity gauges. Each type has its advantages and specific applications.Mechanical vacuum gauges, such as Bourdon tube gauges, use a coiled metal tube that expands when pressure decreases. This expansion moves a needle on a dial, providing a visual indication of the vacuum level. These gauges are often used in less critical applications where high precision is not required. On the other hand, electronic vacuum gauges utilize sensors to detect pressure changes and convert them into electrical signals, offering more accurate and reliable readings. These are commonly used in research laboratories and industries that require precise vacuum levels.Thermal conductivity vacuum gauges work on the principle that the thermal conductivity of a gas changes with pressure. By measuring the heat transfer between a heated element and the surrounding gas, these gauges can determine the vacuum level. They are particularly useful in high-vacuum applications, such as semiconductor manufacturing, where extremely low pressures are necessary.The importance of a vacuum gauge cannot be overstated. In the field of materials science, for example, the properties of certain materials can only be studied under vacuum conditions. The vacuum gauge ensures that the desired vacuum level is achieved and maintained throughout the experiment, allowing researchers to obtain accurate data. Similarly, in the pharmaceutical industry, the production of certain drugs requires vacuum conditions to prevent contamination and ensure product integrity. Here, the vacuum gauge plays a vital role in monitoring and controlling the vacuum environment during production.Moreover, proper maintenance and calibration of vacuum gauges are essential for ensuring their accuracy and reliability. Regular checks and adjustments help prevent discrepancies that could lead to faulty results in experiments or manufacturing processes. As technology advances, new types of vacuum gauges continue to be developed, offering improved accuracy and functionality.In conclusion, the vacuum gauge is a fundamental tool in various scientific and industrial applications. Its ability to measure and monitor vacuum levels accurately makes it indispensable in ensuring the success of experiments and production processes. By understanding the different types of vacuum gauges and their applications, professionals in various fields can enhance their work's efficiency and accuracy. As we continue to explore the possibilities within science and technology, the vacuum gauge will undoubtedly remain a key player in facilitating advancements and innovations in numerous disciplines.

在科学和工程的世界中，精确的测量对于成功的实验和生产过程至关重要。用于测量真空系统中压力的关键仪器之一是真空计。真空计是一种测量真空环境中气体压力的仪器，使科学家和工程师能够监控和控制实验或生产过程中发生的条件。理解真空计的工作原理及其应用，对于物理、化学和工业制造等多个领域都是有益的。真空计的基本原理是测量给定空间内气体分子施加的压力。在真空中，与大气压力相比，气体分子的数量显著减少，从而导致较低的压力读数。有几种类型的真空计，每种类型都利用不同的方法提供准确的测量。一些常见的类型包括机械计、电子计和热导率计。每种类型都有其优点和特定的应用。机械真空计，如波登管计，使用一个卷曲的金属管，该管在压力降低时会膨胀。这种膨胀会使指针在刻度盘上移动，提供真空水平的可视指示。这些计量仪器通常用于对高精度要求不高的应用中。另一方面，电子真空计利用传感器检测压力变化，并将其转换为电信号，提供更准确和可靠的读数。这些计量仪器通常用于需要精确真空水平的研究实验室和工业中。热导率真空计的工作原理是气体的热导率随着压力的变化而变化。通过测量加热元件与周围气体之间的热传递，这些计量仪器可以确定真空水平。它们在高真空应用中尤其有用，如半导体制造，在这些应用中，需要极低的压力。真空计的重要性不容小觑。例如，在材料科学领域，某些材料的特性只能在真空条件下进行研究。真空计确保所需的真空水平在整个实验过程中达到并保持，从而使研究人员获得准确的数据。同样，在制药行业，某些药物的生产需要真空条件，以防止污染并确保产品完整性。在这里，真空计在监控和控制生产过程中的真空环境方面发挥着至关重要的作用。此外，适当的维护和校准真空计对于确保其准确性和可靠性至关重要。定期检查和调整有助于防止可能导致实验或生产过程中结果错误的差异。随着技术的进步，新型真空计不断被开发出来，提供更高的准确性和功能。总之，真空计是各种科学和工业应用中的基本工具。它准确测量和监控真空水平的能力使其在确保实验和生产过程的成功中不可或缺。通过了解不同类型的真空计及其应用，各个领域的专业人士可以提高工作效率和准确性。随着我们继续探索科学和技术的可能性，真空计无疑将继续在促进众多学科的进步和创新中发挥关键作用。