hot wire anemometer

简明释义

热线风速计

英英释义

例句

1.During the field study, the researcher recorded data using a hot wire anemometer to analyze wind patterns.

在实地研究中，研究人员使用热丝风速计记录数据以分析风速模式。

2.In the lab, we utilized a hot wire anemometer for our fluid dynamics experiments.

在实验室，我们利用热丝风速计进行流体动力学实验。

3.To ensure accurate readings, calibrate the hot wire anemometer before each use.

为确保读数准确，在每次使用前校准热丝风速计。

4.The hot wire anemometer is essential for measuring wind speed in meteorological studies.

在气象研究中，热丝风速计是测量风速的必备工具。

5.The engineer used a hot wire anemometer to measure the airflow in the ventilation system.

工程师使用热丝风速计来测量通风系统中的气流。

作文

In the field of fluid dynamics and aerodynamics, precise measurement of air velocity is crucial for various applications. One of the most effective instruments used for this purpose is the hot wire anemometer. A hot wire anemometer is a device that measures the speed of airflow by using the principle of heat transfer. This instrument consists of a thin wire that is electrically heated. When air flows over the wire, it cools down, and the amount of cooling is directly related to the velocity of the airflow. By measuring the change in temperature of the wire, the airspeed can be accurately determined.The operation of a hot wire anemometer is based on the relationship between heat transfer and fluid flow. When the wire is heated, it reaches a steady state temperature. As the air velocity increases, more heat is removed from the wire, causing its temperature to drop. The rate of cooling is proportional to the velocity of the air passing over the wire. This allows for precise measurements, making the hot wire anemometer a preferred choice among engineers and researchers.One of the significant advantages of using a hot wire anemometer is its sensitivity. It can detect very small changes in air velocity, which is particularly useful in applications where precision is paramount, such as in wind tunnel testing or in monitoring ventilation systems in buildings. Additionally, hot wire anemometers can provide instantaneous measurements, allowing for real-time analysis of airflow characteristics.However, there are also some limitations associated with hot wire anemometers. For instance, they can be affected by environmental factors such as humidity and temperature, which may introduce errors in the readings. Furthermore, the delicate nature of the wire makes it susceptible to damage, especially in turbulent flow conditions. Therefore, proper handling and calibration of the hot wire anemometer are essential to ensure accurate and reliable measurements.In conclusion, the hot wire anemometer is a valuable tool in the study of fluid dynamics. Its ability to provide precise and instantaneous measurements of airflow makes it indispensable in various engineering applications. While it has its limitations, the benefits of using a hot wire anemometer far outweigh the drawbacks. As technology continues to advance, we can expect further improvements in the design and functionality of these instruments, enhancing our understanding of airflow and its implications in different fields.

在流体动力学和空气动力学领域，精确测量空气速度对于各种应用至关重要。用于此目的的最有效仪器之一是热丝风速计。热丝风速计是一种通过利用热传递原理来测量气流速度的设备。该仪器由一根细丝组成，该细丝通过电加热。当空气流过细丝时，它会冷却，冷却的程度与气流速度直接相关。通过测量细丝的温度变化，可以准确确定空气速度。热丝风速计的操作基于热传递与流体流动之间的关系。当细丝被加热时，它会达到一个稳定的温度。当空气速度增加时，更多的热量从细丝中移除，导致其温度下降。冷却速率与通过细丝的空气速度成正比。这使得精确测量成为可能，使得热丝风速计成为工程师和研究人员的首选。使用热丝风速计的一个显著优势是其灵敏度。它可以检测到空气速度非常小的变化，这在精度至关重要的应用中尤为有用，例如在风洞测试或监测建筑物通风系统中。此外，热丝风速计可以提供瞬时测量，允许实时分析气流特性。然而，热丝风速计也存在一些局限性。例如，它们可能受到湿度和温度等环境因素的影响，从而引入读数误差。此外，细丝的脆弱性质使其易受损坏，尤其是在湍流条件下。因此，适当的处理和校准热丝风速计对于确保准确可靠的测量至关重要。总之，热丝风速计是研究流体动力学的宝贵工具。它能够提供精确和瞬时的气流测量，使其在各种工程应用中不可或缺。尽管它有其局限性，但使用热丝风速计的好处远远超过缺点。随着技术的不断进步，我们可以期待这些仪器的设计和功能进一步改善，从而增强我们对气流及其在不同领域影响的理解。