V2EX remanence

Remanence

释义 Definition

剩磁;剩余磁感应强度(磁滞回线中外加磁场降为零时材料仍保留的磁化/磁通密度)。常用于磁学、材料科学与电机工程语境。(也常见相关说法:remanent magnetization “剩余磁化”。)

发音 Pronunciation (IPA)

/rmnns/

例句 Examples

The magnet still has remanence even after the field is removed.
即使外加磁场移除后,这块磁体仍然保留剩磁。

In designing the motor, engineers must consider the remanence of the core material, because it can affect efficiency and cause unwanted residual fields.
在电机设计中,工程师必须考虑铁芯材料的剩磁,因为它会影响效率,并可能产生不需要的残余磁场。

词源 Etymology

remanence 来自拉丁语 remanērere- “再、回” + manēre “停留”),本义是“留下来、仍然存在”。在科学语境中引申为“外部作用消失后仍残留的量”,尤其指磁学中的“剩磁”。

相关词 Related Words

文学与著作中的用例 Literary & Notable Works

  • Introduction to Solid State Physics(Charles Kittel)在磁性章节讨论磁滞回线与剩磁(remanence / remanent magnetization)。
  • Physics of Ferromagnetism(S. Chikazumi)系统使用“remanence”描述铁磁材料的剩余磁化。
  • Introduction to Magnetic Materials(B. D. Cullity & C. D. Graham)以工程视角讲解剩磁、矫顽力与磁性材料表征。
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