hysteresis

简明释义

英[ˌhɪstəˈriːsɪs]美[ˌhɪstəˈrisɪs]

n. 迟滞现象；滞后作用，磁滞现象；滞变

复 数 h y s t e r e s e s

英英释义

单词用法

同义词

反义词

例句

1.Hysteresis compactor is the one whose threshold value can change with the input signal.

迟滞比较器是一种阈值能随着输入信号而变化的比较器。

2.The static magnetization curves and hysteresis loops were measured by the ballistic galvanometer.

用冲击检流计法测量了合金的静态磁化曲线和磁滞回线。

3.The output of the hysteresis comparator can be delay for a period of time, so the noise can be effectively prevented .

翻转会比没有加入迟滞效应的比较器延迟一段时间，可以有效地避免噪声影响。

4.The character of hysteresis in coiled capillaries tends to be weaker with the coiled diameter increasing.

随盘曲直径增大，螺旋毛细管中的流量迟滞特性呈现减弱的趋势。

5.The exact shape of the hysteresis curve is very sensitive to it.

迟滞曲线的具体形状对背景噪音非常敏感。

6.Internal circuit protection includes: thermal shutdown with hysteresis, UVLO, and crossover-current protection.

内部电路保护包括：热关机滞后，UVLO，及交叉电流保护。

7.While the hysteresis loop closes as the dipolar interaction is quite strong.

当偶极相互作用变得很强时，这些环将会消失。

8.FAS system can be considered as a control system comprising a number of hysteresis elements.

将一个二元颤振主动抑制系统视为由若干个滞后环节组成的控制系统。

9.The temperature control system in the refrigerator uses a mechanism of hysteresis to avoid frequent cycling on and off.

冰箱的温度控制系统使用滞后效应机制，以避免频繁的开关循环。

10.In physics, hysteresis can be observed in magnetic materials when they retain magnetization after an external magnetic field is removed.

在物理学中，当外部磁场被移除时，磁性材料中可以观察到滞后效应，它们会保持磁化状态。

11.The hysteresis effect in rubber bands means that they do not return to their original shape immediately after being stretched.

橡皮筋中的滞后效应意味着它们在被拉伸后不会立即恢复到原来的形状。

12.Engineers must account for hysteresis when designing systems that rely on feedback loops.

工程师在设计依赖反馈循环的系统时必须考虑滞后效应。

13.The hysteresis loop of a ferromagnetic material illustrates the relationship between magnetic field strength and magnetization.

铁磁材料的滞后效应回路展示了磁场强度与磁化之间的关系。

作文

Hysteresis is a term that often appears in physics and engineering, but its implications extend far beyond these fields. The word itself comes from the Greek word 'hysteros,' meaning 'late' or 'behind.' In essence, hysteresis refers to the phenomenon where the state of a system depends not only on its current conditions but also on its history of past states. This concept can be observed in various contexts, such as magnetism, thermodynamics, and even economics. In the realm of magnetism, hysteresis describes how magnetic materials retain some magnetization after an external magnetic field is removed. For instance, when you take a magnet and place it against a piece of iron, the iron becomes magnetized. However, once you remove the magnet, the iron does not completely lose its magnetization immediately; instead, it retains some level of magnetization due to hysteresis. This characteristic is critical in the design of magnetic storage devices, transformers, and inductors. Understanding hysteresis allows engineers to create more efficient systems by accounting for the lag in response to changing magnetic fields. In thermodynamics, hysteresis can be observed in phase transitions, such as the melting of ice into water. When heat is applied to ice, it takes time to change from solid to liquid. Similarly, when cooling down, the process of freezing does not occur instantaneously either. The temperature at which ice melts is different from the temperature at which water freezes, illustrating the hysteresis effect in thermal processes. This understanding is essential in climate science and various industrial applications where temperature control is critical. Economically, hysteresis can refer to the long-term effects of economic shocks. For example, during a recession, unemployment may rise sharply, and even when the economy begins to recover, the unemployment rate might remain high for an extended period. This lagging effect can be attributed to hysteresis, as the economy’s ability to rebound is influenced by its previous state. Policymakers must consider this when designing interventions to stimulate growth and reduce unemployment. Moreover, hysteresis has implications in biological systems as well. For example, in the context of enzyme activity, the response of enzymes to substrate concentration can exhibit hysteresis, where the rate of reaction depends on the history of substrate concentration. This can impact metabolic pathways and overall cellular function, highlighting the importance of historical context in biological processes. Understanding hysteresis is crucial for developing effective models and solutions across various disciplines. It serves as a reminder that systems are not always linear and that history plays a significant role in determining current and future states. As we progress in technology and science, the recognition of hysteresis will continue to enhance our ability to predict behaviors and improve designs, leading to advancements that can benefit society as a whole. In conclusion, hysteresis is a multifaceted concept that transcends the boundaries of physics and engineering. Its relevance in magnetism, thermodynamics, economics, and biology illustrates the interconnectedness of different fields of study. By grasping the significance of hysteresis, we can better understand complex systems and their responses to changes, ultimately paving the way for innovative solutions and improvements in various aspects of life.

滞后效应是一个常出现在物理学和工程学中的术语，但其影响远远超出了这些领域。这个词本身来自希腊词'hysteros'，意为'晚'或'后面'。从本质上讲，滞后效应指的是一个系统的状态不仅取决于其当前条件，还取决于其过去状态的历史。这一概念可以在多个背景中观察到，例如磁性、热力学，甚至经济学。 在磁性领域，滞后效应描述了磁性材料在外部磁场移除后仍然保留一些磁化的现象。例如，当你将一个磁铁放在一块铁上时，铁会被磁化。然而，一旦你移走磁铁，铁并不会立即完全失去其磁化；相反，由于滞后效应，它会保留一定程度的磁化。这一特性对于磁存储设备、变压器和电感器的设计至关重要。理解滞后效应使工程师能够通过考虑对变化磁场的响应滞后，来创建更高效的系统。 在热力学中，滞后效应可以在相变中观察到，例如冰融化成水。当热量施加到冰上时，冰从固态转变为液态需要时间。同样，在冷却过程中，冻结过程也不会立即发生。冰的熔点与水的冰点不同，这说明了热过程中的滞后效应。这种理解在气候科学和各种工业应用中至关重要，尤其是在温度控制方面。 在经济学中，滞后效应可以指经济冲击的长期影响。例如，在经济衰退期间，失业率可能急剧上升，即使经济开始复苏，失业率可能仍会在较长时间内保持在高位。这种滞后效应可以归因于滞后效应，因为经济恢复的能力受到其先前状态的影响。政策制定者在设计刺激增长和减少失业的干预措施时必须考虑这一点。 此外，滞后效应在生物系统中也有影响。例如，在酶活性的背景下，酶对底物浓度的反应可能表现出滞后效应，其中反应速率取决于底物浓度的历史。这可能影响代谢途径和整体细胞功能，突显了历史背景在生物过程中重要性。 理解滞后效应对于开发各个学科有效模型和解决方案至关重要。它提醒我们，系统并不总是线性的，历史在决定当前和未来状态中发挥着重要作用。随着我们在技术和科学上的进步，认识到滞后效应将继续增强我们预测行为和改善设计的能力，从而推动社会整体的进步。 总之，滞后效应是一个多面向的概念，超越了物理学和工程学的界限。它在磁性、热力学、经济学和生物学中的相关性表明了不同研究领域之间的相互联系。通过掌握滞后效应的重要性，我们可以更好地理解复杂系统及其对变化的响应，最终为生活的各个方面铺平创新解决方案和改进的道路。