V2EX field strength

Field Strength

释义 Definition

field strength场强;指某种“场”(常见为电场磁场)在某一点的强弱程度的量度。电场强度常用单位 V/m,磁场强度常用单位 A/m(在不同学科语境中也可能指相关的场量)。

发音 Pronunciation (IPA)

/fild streθ/

例句 Examples

The field strength is highest near the source.
场强在靠近源头的地方最大。

Engineers measured the field strength at multiple locations to ensure the wireless system met safety limits and performance targets.
工程师在多个位置测量场强,以确保无线系统满足安全限值和性能目标。

词源 Etymology

field(场)原指“开阔的田地”,后来引申为“作用范围/领域”,在物理学中进一步发展为“力或影响在空间中的分布”(如电场、磁场)。strength(强度)来自表示“强壮、力量”的词根。合在一起,field strength 就是“场的强度/强弱程度”。

相关词 Related Words

文学与经典作品 Literary Works

  • A Treatise on Electricity and Magnetism James Clerk Maxwell
  • Classical Electrodynamics John David Jackson
  • Introduction to Electrodynamics David J. Griffiths
  • The Feynman Lectures on Physics Richard P. Feynman, Robert B. Leighton, Matthew Sands
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