hot junction

简明释义

热结

英英释义

例句

1.The technician measured the voltage across the hot junction 热接点 to ensure the thermocouple was functioning correctly.

技术人员测量了热接点 hot junction 之间的电压，以确保热电偶正常工作。

2.During the experiment, the researchers carefully monitored the hot junction 热接点 to prevent overheating.

在实验过程中，研究人员仔细监测热接点 hot junction 以防止过热。

3.The hot junction 热接点 of the sensor was exposed to high temperatures for accurate readings.

传感器的热接点 hot junction 暴露在高温下以获得准确读数。

4.A faulty hot junction 热接点 can lead to incorrect temperature measurements.

故障的热接点 hot junction 可能导致温度测量不准确。

5.In a thermoelectric generator, the efficiency depends on the temperature difference between the hot junction 热接点 and the cold junction.

在热电发电机中，效率取决于热接点 hot junction 和冷接点之间的温差。

作文

In the field of electronics and thermoelectric devices, the term hot junction refers to the part of a thermocouple or thermoelectric generator that is exposed to a heat source. This section is crucial for the generation of electrical voltage through the Seebeck effect, where a temperature difference between two junctions creates an electric current. Understanding the role of the hot junction is essential for engineers and scientists who work with temperature measurement and energy conversion systems.When a hot junction is placed in contact with a hot object, it absorbs heat and thus becomes hotter than the other junction, known as the cold junction. The temperature difference between these two junctions leads to the flow of electrons, generating a measurable voltage. This principle is widely used in various applications, including temperature sensors, power generation, and cooling systems.For instance, in a typical thermocouple setup, the hot junction is often made from two different types of metal wires joined together. When the hot junction is heated, the electrons in the metals respond differently due to their distinct properties. This difference in electron behavior is what produces the voltage output, which can be calibrated to correspond to specific temperatures.Moreover, the efficiency of thermoelectric devices largely depends on the materials used for both the hot junction and the cold junction. Researchers are continually exploring new materials that can enhance the performance of these junctions, aiming to create more efficient systems that can convert waste heat into usable electricity. The advancements in material science have led to the development of new alloys and compounds that significantly improve the thermoelectric efficiency of hot junction configurations.In practical applications, the positioning of the hot junction is critical. For example, in industrial settings, precise temperature measurements are vital for process control and safety. A poorly placed hot junction can lead to inaccurate readings, resulting in inefficient operations or even dangerous situations. Therefore, understanding how to properly install and calibrate these junctions is a key skill for technicians and engineers alike.In conclusion, the concept of the hot junction is fundamental to the functioning of thermoelectric devices. Its ability to convert thermal energy into electrical energy has significant implications for energy efficiency and sustainability. As technology advances, the importance of optimizing the hot junction and its counterpart, the cold junction, will only grow, paving the way for innovations in energy harvesting and temperature measurement technologies. The ongoing research in this area holds promise for creating more effective and reliable systems that can harness energy from various heat sources, ultimately contributing to a greener future.

在电子和热电设备领域，短语hot junction指的是热电偶或热电发电机中暴露于热源的部分。这一部分对于通过塞贝克效应产生电压至关重要，该效应是指两个接点之间的温差会产生电流。理解hot junction的作用对于从事温度测量和能量转换系统的工程师和科学家来说是必不可少的。当hot junction与热物体接触时，它吸收热量，因此变得比另一个接点（称为冷接点）更热。这两个接点之间的温差导致电子流动，从而产生可测量的电压。这一原理广泛应用于各种应用中，包括温度传感器、发电和冷却系统。例如，在典型的热电偶设置中，hot junction通常由两种不同类型的金属线连接而成。当hot junction被加热时，金属中的电子由于其不同的特性而以不同方式反应。这种电子行为的差异就是产生电压输出的原因，这可以被校准以对应特定温度。此外，热电设备的效率在很大程度上依赖于用于hot junction和冷接点的材料。研究人员不断探索新材料，以提高这些接点的性能，旨在创建更高效的系统，将废热转化为可用电力。材料科学的进步导致了新合金和化合物的发展，这显著提高了hot junction配置的热电效率。在实际应用中，hot junction的位置至关重要。例如，在工业环境中，精确的温度测量对过程控制和安全至关重要。放置不当的hot junction可能导致读数不准确，从而导致低效操作甚至危险情况。因此，了解如何正确安装和校准这些接点是技术人员和工程师的重要技能。总之，hot junction的概念是热电设备功能的基础。它将热能转化为电能的能力对能效和可持续性具有重要意义。随着技术的进步，优化hot junction及其对应的冷接点的重要性只会增加，为能源收集和温度测量技术的创新铺平道路。在这一领域的持续研究为创造更有效和可靠的系统提供了希望，这些系统能够从各种热源中获取能量，最终为更绿色的未来做出贡献。