temperature coefficient of resistance

简明释义

电阻温度系数

英英释义

例句

1.Engineers must consider the temperature coefficient of resistance 电阻的温度系数 when designing circuits that operate in varying temperatures.

工程师在设计在不同温度下运行的电路时，必须考虑电阻的温度系数。

2.The temperature coefficient of resistance 电阻的温度系数 for copper is typically around 0.00393 per degree Celsius.

铜的电阻的温度系数通常约为每摄氏度0.00393。

3.The temperature coefficient of resistance 电阻的温度系数 is essential for calculating the resistance of materials at different temperatures.

计算不同温度下材料的电阻时，电阻的温度系数是必不可少的。

4.For precision applications, knowing the temperature coefficient of resistance 电阻的温度系数 of the resistor is crucial.

对于精密应用，了解电阻器的电阻的温度系数至关重要。

5.A high temperature coefficient of resistance 电阻的温度系数 can lead to significant changes in electrical performance as temperatures fluctuate.

高电阻的温度系数可能导致电性能在温度波动时发生显著变化。

作文

The concept of temperature coefficient of resistance is essential in understanding how materials respond to changes in temperature. In physics and electrical engineering, the temperature coefficient of resistance refers to the degree to which a material's electrical resistance changes with temperature. Specifically, it quantifies the change in resistance per degree of temperature change, which can be critical for designing circuits and systems that operate under varying environmental conditions.To illustrate this concept, consider a simple circuit made up of a resistor. As the temperature of the resistor increases, its resistance may also increase due to the increased vibrations of the atoms within the material. This phenomenon is particularly noticeable in metallic conductors, where the temperature coefficient of resistance is typically positive. This means that as the temperature rises, the resistance increases, leading to potential issues such as overheating or reduced efficiency in electrical devices.On the other hand, some materials, such as certain semiconductors, exhibit a negative temperature coefficient of resistance. In these cases, as the temperature increases, the resistance decreases. This counterintuitive behavior can be harnessed in various applications, such as thermistors, which are temperature-sensitive resistors used in temperature measurement and control systems.Understanding the temperature coefficient of resistance is crucial for engineers and designers who need to account for thermal effects in their work. For instance, in power electronics, components can generate significant heat during operation. If the temperature coefficient of resistance is not considered, the increased resistance could lead to inefficiencies, excessive heat generation, and even component failure.Moreover, the temperature coefficient of resistance varies among different materials. For example, copper has a relatively low temperature coefficient of resistance, making it an excellent conductor for electrical applications. In contrast, materials like carbon have a higher coefficient, which can limit their effectiveness in certain scenarios. Therefore, selecting the right material based on its temperature coefficient of resistance is vital in achieving optimal performance and reliability in electronic devices.In summary, the temperature coefficient of resistance plays a significant role in the field of electronics and materials science. It influences how devices are designed, how they operate under different temperatures, and their overall efficiency. By comprehensively understanding this concept, engineers can create more reliable and effective electronic systems that can withstand a range of operating conditions. As technology continues to advance, the importance of accurately accounting for the temperature coefficient of resistance will only grow, highlighting the need for ongoing research and education in this critical area of study.

电阻的温度系数这一概念对于理解材料如何响应温度变化至关重要。在物理学和电气工程中，温度系数指的是材料的电阻随温度变化的程度。具体来说，它量化了电阻在每度温度变化时的变化，这对于设计在不同环境条件下工作的电路和系统至关重要。为了说明这一概念，考虑一个由电阻器组成的简单电路。随着电阻器温度的升高，其电阻也可能因材料内原子的振动增加而增加。这种现象在金属导体中尤为明显，其中温度系数通常是正值。这意味着随着温度的升高，电阻增加，从而导致潜在问题，如过热或电气设备效率降低。另一方面，一些材料，如某些半导体，表现出负的温度系数。在这些情况下，随着温度的升高，电阻反而降低。这种反直觉的行为可以在各种应用中利用，例如热敏电阻，热敏电阻用于温度测量和控制系统。理解温度系数对于需要考虑热效应的工程师和设计师至关重要。例如，在功率电子学中，组件在操作过程中可能会产生显著的热量。如果不考虑温度系数，增加的电阻可能导致效率降低、过热甚至组件故障。此外，温度系数在不同材料之间有所不同。例如，铜的温度系数相对较低，使其成为电气应用中优秀的导体。相比之下，碳等材料的系数较高，这可能限制它们在某些场景中的有效性。因此，基于温度系数选择合适的材料对于实现最佳性能和可靠性至关重要。总之，温度系数在电子和材料科学领域中发挥着重要作用。它影响设备的设计、在不同温度下的操作以及整体效率。通过全面理解这一概念，工程师可以创造出更可靠、更有效的电子系统，能够承受一系列操作条件。随着技术的不断进步，准确考虑温度系数的重要性只会增加，这突显了在这一关键研究领域中持续研究和教育的必要性。