conductance

简明释义

英[kənˈdʌktəns]美[kənˈdʌktəns]

n. [电] 电导；导率；电导系数

英英释义

单词用法

同义词

反义词

例句

1.Most studies of physiology-based measurements of pain have focused on heart rate, skin conductance and EEG.

大多数基于生理的疼痛测量研究都聚焦于心率、皮肤电导和脑电图。

2.Pain and Regional Anesthesia Gabapentin Increases a Tonic Inhibitory Conductance in Hippocampal Pyramidal Neurons.

加巴喷啶增加海马锥体神经元中强直性抑制电导。

3.The effect of extraneous catecholamines on the mouse skin conductance was investigated.

研究了外源性儿茶酚胺对小鼠皮肤导电性的影响。

4.A skin conductance response sensor on the left hand was used to detect any flashes of fear-based sweat in response to body threats.

一组在左手上的皮肤电导传感器被用来监测任何一点在身体威胁下基于恐惧的汗水。

5.When a silver filament reaches the gold, it forms a short circuit, causing a dramatic change in conductance, which is easily detectable.

当一根银丝极到达金线时，它将形成一种短路，从而导致电导发生一种惊人的变化。科学家可以容易地对此进行检测。

6.The effect of conductance of solution on the diameter vs axial coordinate and stable length of one single nanofibers is investigated.

研究纺丝液的导电性对静电纺丝单根纤维的直径及稳定长度的影响。

7.The loss of B. pendala was mainly due to biochemical limitation as stomatal conductance decreased only slowly.

玉蕊诱导状态的消失主要与生化限制有关，因为此时它的气孔导度仍维持相对较高的值。

8.As determined via molar conductance these compounds are characterized as neutral complexes.

摩尔电导测定表明这两类化合物均为中性配合物。

9.Conductance instrument is a very extensive application of the measurement apparatus.

电导仪是一种应用非常广泛的测量仪器。

10.The electrical conductance 导电性 of the material increases with temperature.

该材料的电导电性 导电性随温度升高而增加。

11.In this circuit, we need to measure the conductance 导电性 to ensure it is functioning correctly.

在这个电路中，我们需要测量导电性 导电性以确保其正常工作。

12.High conductance 导电性 materials are essential for efficient electrical systems.

高导电性 导电性材料对于高效电气系统至关重要。

13.The conductance 导电性 of this solution can be affected by the concentration of ions.

该溶液的导电性 导电性可能会受到离子浓度的影响。

14.We calculated the conductance 导电性 using Ohm's law.

我们使用欧姆定律计算了导电性 导电性。

作文

In the field of physics and electrical engineering, the term conductance refers to the ability of a material to conduct electric current. It is the reciprocal of resistance and is measured in siemens (S). Understanding conductance is essential for engineers and scientists as it plays a crucial role in designing electrical circuits and systems. The higher the conductance of a material, the more easily electricity can flow through it. This characteristic is particularly important when selecting materials for various applications, such as wiring, components in electronic devices, and even in larger systems like power grids. One of the most common examples of conductance can be found in metals. Metals like copper and aluminum have high conductance, which is why they are widely used in electrical wiring. Copper, in particular, is favored due to its excellent conductance properties along with its resistance to corrosion. On the other hand, insulators such as rubber or glass exhibit very low conductance, making them ideal for preventing unwanted current flow. The concept of conductance is not limited to just solid materials. In fluids, the conductance can also be significant, especially in electrolytic solutions. For instance, when salt is dissolved in water, it dissociates into ions, increasing the solution's conductance. This principle is utilized in various applications, including batteries and electrolysis processes, where the flow of ions is crucial for the system's operation. Moreover, conductance can be affected by several factors, including temperature, concentration of ions in a solution, and the physical state of the material. For example, as the temperature increases, the conductance of most conductive materials typically increases as well, due to the increased movement of charge carriers. Conversely, in semiconductors, the relationship between temperature and conductance can be more complex, often requiring careful analysis to understand how external conditions influence their performance. In practical applications, measuring conductance is vital for ensuring the safety and efficiency of electrical systems. Engineers use various instruments, such as multimeters and conductance meters, to assess the conductance of materials and components. By doing so, they can identify potential issues, such as short circuits or excessive resistance, that could lead to equipment failure or hazards. Furthermore, the study of conductance extends beyond traditional electrical engineering. In fields like biophysics, researchers explore the conductance properties of biological membranes and cells. Understanding how ions and molecules move across these barriers is crucial for comprehending cellular functions and developing medical technologies. In conclusion, conductance is a fundamental concept in understanding how materials interact with electric currents. Its implications reach far beyond simple electrical circuits, impacting various fields from engineering to biology. By recognizing the importance of conductance and its applications, we can better appreciate the intricate relationships between materials and electricity, paving the way for innovations in technology and science. As we continue to advance in our understanding of conductance, we open doors to new possibilities in energy efficiency, electronic design, and beyond.

在物理学和电气工程领域，术语导电率指的是材料传导电流的能力。它是电阻的倒数，以西门子（S）为单位进行测量。理解导电率对于工程师和科学家至关重要，因为它在设计电路和系统中发挥着关键作用。材料的导电率越高，电流通过它流动的难度就越小。这个特性在选择各种应用的材料时尤为重要，例如电缆、电子设备的组件，甚至在大型系统如电力网中。 最常见的导电率实例可以在金属中找到。像铜和铝这样的金属具有高导电率，这就是为什么它们被广泛用于电气布线的原因。特别是铜，由于其优良的导电率特性以及抗腐蚀性而受到青睐。另一方面，橡胶或玻璃等绝缘体则表现出非常低的导电率，使它们非常适合防止不必要的电流流动。 导电率的概念不仅限于固体材料。在液体中，导电率也可能很显著，尤其是在电解质溶液中。例如，当盐溶解在水中时，它会离解成离子，从而增加溶液的导电率。这一原理在各种应用中得到了利用，包括电池和电解过程，在这些过程中，离子的流动对系统的运行至关重要。 此外，导电率还可能受到多个因素的影响，包括温度、溶液中离子的浓度以及材料的物理状态。例如，随着温度的升高，大多数导电材料的导电率通常会增加，因为电荷载体的运动加快。相反，在半导体中，温度与导电率之间的关系可能更为复杂，通常需要仔细分析以了解外部条件如何影响其性能。 在实际应用中，测量导电率对于确保电气系统的安全性和效率至关重要。工程师使用各种仪器，如万用表和导电率计，来评估材料和组件的导电率。通过这样做，他们可以识别潜在问题，例如短路或过度电阻，这可能导致设备故障或危险。 此外，导电率的研究超越了传统的电气工程。在生物物理学等领域，研究人员探索生物膜和细胞的导电率特性。理解离子和分子如何穿越这些屏障对于理解细胞功能和开发医疗技术至关重要。 总之，导电率是理解材料如何与电流相互作用的基本概念。它的影响远不止简单的电路，涉及从工程到生物学的多个领域。通过认识到导电率及其应用的重要性，我们可以更好地欣赏材料与电力之间复杂的关系，为技术和科学的创新铺平道路。随着我们对导电率理解的不断深入，我们为能源效率、电子设计等新可能性打开了大门。