ohmic

简明释义

英[ˈəʊmɪk]美[oʊmɪk]

adj. [电] 欧姆的；以欧姆测定的

英英释义

单词用法

同义词

反义词

例句

1.The new technology of thawing were detail introduced, for example, the super heated steam thawing, ohmic heating thawing, high frequency and microwave thawing.

对一些解冻新技术如过热水蒸气解冻、通电加热解冻、高频波解冻、微波加热解冻和高压静电场解冻等做了较详细的介绍。

2.Problems in measurement of water level(or liquid level)in deep wells are solved through developing the intelligence water level gauge instead of Ohmic method.

智能水位计的研制成功，主要解决了供水企业深井水位（或液位）的测量问题，它取代了以往用万用表测量水位的“欧姆”法。

3.And by the means of silicide, resist layer and aluminium multilayer metal lines, the questions of ohmic-contact and A1 electron mobility are resolved.

采用硅化物阻挡层和A1多层金属布线方法，解决了欧姆接触和铝的电迁移问题。

4.In the Ohmic contacts of LED electrodes, carriers have different transmission mechanisms be - tween metal electrode and semiconductor.

在LED电极欧姆接触中，载流子在金属电极和半导体间有不同的传输机制。

5.Our analysis shows that it is possible to strengthen ohmic heating substantially by sel…

分析表明，适当选择三角变形因子，会使欧姆加热得到显著的增益。

6.Ohmic contact is a critical factor for high power semiconductor lasers.

欧姆接触的好坏，对高功率半导体激光器至关重要。

7.The effects of Ohmic heating on vitamin content of carrot and rape were studied, and compared with the electric stove heating.

研究了通电加热烫漂对胡萝卜、油菜中维生素含量的影响，并与普通电炉加热进行了比较；

8.Our analysis shows that it is possible to strengthen ohmic heating substantially by selecting suitable factors of the...

分析表明，适当选择三角变形因子，会使欧姆加热得到显著的增益。

9.The resistor exhibits an ohmic behavior, meaning its resistance remains constant over a range of voltages.

这个电阻器表现出欧姆特性，意味着其电阻在一定范围的电压下保持不变。

10.When designing an ohmic load, it is important to select materials that do not change resistance with temperature.

在设计一个欧姆负载时，选择不会随温度变化而改变电阻的材料是很重要的。

11.The ohmic nature of the wire allows for predictable calculations of power loss.

这根电线的欧姆特性使得功率损耗的计算可预测。

12.In an ohmic circuit, the current is directly proportional to the voltage applied.

在一个欧姆电路中，电流与施加的电压成正比。

13.An ohmic device can be easily analyzed using Ohm's Law.

一个欧姆设备可以通过欧姆定律轻松分析。

作文

In the realm of electrical engineering, understanding various properties of materials is crucial for the design and implementation of circuits. One important concept that often arises is the term ohmic, which refers to materials that follow Ohm's Law. Ohm's Law states that the current flowing through a conductor between two points is directly proportional to the voltage across the two points, provided the temperature remains constant. This relationship can be expressed mathematically as V = IR, where V is the voltage, I is the current, and R is the resistance. When we describe a material as ohmic, we mean that it exhibits a linear relationship between voltage and current, allowing us to predict how the material will behave under different electrical conditions.The significance of ohmic materials is evident in various applications, from simple resistors to complex electronic devices. For instance, metals like copper and aluminum are considered ohmic because they maintain a consistent resistance regardless of the applied voltage. This property makes them ideal for use in wiring and circuit boards, where reliable and predictable performance is essential.However, not all materials are ohmic. Some materials exhibit non-linear characteristics, meaning their resistance changes with varying voltage or current levels. These materials are often referred to as non-ohmic. A common example of a non-ohmic material is a diode, which allows current to flow in one direction while blocking it in the opposite direction. This behavior is critical in many electronic applications, such as rectifiers and signal modulators.Understanding the distinction between ohmic and non-ohmic materials is vital for engineers and designers. When designing circuits, knowing whether a component is ohmic allows for accurate calculations and predictions regarding the overall performance of the circuit. For example, if an engineer mistakenly assumes a non-ohmic component is ohmic, they may design a circuit that fails to operate as intended, leading to inefficiencies or even damage to components.In addition to basic circuitry, the concept of ohmic materials extends to more advanced technologies, such as sensors and transistors. In these devices, the ohmic behavior can influence sensitivity and response time. For instance, a sensor that relies on ohmic materials may provide more consistent readings under varying conditions compared to one that relies on non-ohmic materials, which might introduce variability and uncertainty.Moreover, the study of ohmic behavior is not limited to traditional materials. Researchers are continually exploring new substances, including superconductors and nanomaterials, to understand their electrical properties better. As technology advances, the ability to manipulate and utilize ohmic and non-ohmic behaviors will play a pivotal role in the development of innovative electronic devices and systems.In conclusion, the term ohmic is fundamental in the field of electrical engineering, representing materials that adhere to Ohm's Law. Recognizing the importance of ohmic versus non-ohmic materials enables engineers to design efficient and effective circuits, ensuring that electronic devices function as intended. As technology progresses, the exploration of ohmic behavior in new materials will undoubtedly lead to exciting advancements in electronics and beyond.

在电气工程领域，理解材料的各种特性对于电路的设计和实施至关重要。一个常常出现的重要概念是术语ohmic，它指的是遵循欧姆定律的材料。欧姆定律指出，在两个点之间流动的电流与跨越这两个点的电压成正比，只要温度保持不变。这个关系可以用数学公式表示为V = IR，其中V是电压，I是电流，R是电阻。当我们将某种材料描述为ohmic时，我们的意思是它表现出电压和电流之间的线性关系，使我们能够预测材料在不同电气条件下的行为。ohmic材料的重要性在于各种应用中，从简单的电阻器到复杂的电子设备。例如，铜和铝等金属被认为是ohmic的，因为它们在施加电压的情况下保持一致的电阻。这一特性使它们非常适合用于电缆和电路板，在这些地方，可靠和可预测的性能是必不可少的。然而，并非所有材料都是ohmic的。一些材料表现出非线性特性，这意味着它们的电阻会随着电压或电流水平的变化而变化。这些材料通常被称为non-ohmic。一个常见的non-ohmic材料的例子是二极管，它允许电流向一个方向流动，而在相反方向上阻止电流。这种行为在许多电子应用中至关重要，例如整流器和信号调制器。了解ohmic和non-ohmic材料之间的区别对工程师和设计师来说至关重要。在设计电路时，知道一个组件是否是ohmic可以让我们进行准确的计算和预测电路的整体性能。例如，如果工程师错误地假设一个non-ohmic组件是ohmic，他们可能会设计出一个无法按预期运行的电路，从而导致效率低下甚至损坏组件。除了基本电路外，ohmic材料的概念还扩展到更先进的技术，如传感器和晶体管。在这些设备中，ohmic行为可以影响灵敏度和响应时间。例如，依赖于ohmic材料的传感器在不同条件下可能提供更一致的读数，而依赖于non-ohmic材料的传感器可能会引入变异性和不确定性。此外，对ohmic行为的研究并不限于传统材料。研究人员不断探索新物质，包括超导体和纳米材料，以更好地理解其电气特性。随着技术的发展，操控和利用ohmic和non-ohmic行为的能力将在创新电子设备和系统的发展中发挥重要作用。总之，术语ohmic在电气工程领域是基础，代表遵循欧姆定律的材料。认识到ohmic与non-ohmic材料的重要性使工程师能够设计高效有效的电路，确保电子设备按预期功能运行。随着技术的进步，对新材料中ohmic行为的探索无疑将推动电子学及其他领域的令人兴奋的进展。