constantan

Thân thiện

A technician winds constantan wire onto a ceramic resistor core.

Definition

1. Noun:
   • A specific metallic alloy: "Constantan" is a trademarked name for an alloy primarily composed of copper and nickel, known for its stable electrical resistance across a range of temperatures.

Usage

• As a material noun: "Constantan" is used to refer to the substance itself, typically in scientific, engineering, and manufacturing contexts.
  • The thermocouple was made using constantan wire.
  • Constantan is valued for its nearly constant resistivity.

Advanced Usage

• In instrumentation: Due to its stable properties, constantan is frequently used in precision electrical resistors, thermocouples (often paired with copper or iron), and strain gauges.
  • The strain gauge's sensitivity relies on the predictable behavior of the constantan foil.

Variants and Related Words

• Eureka: An older, alternative name for the same or a very similar copper-nickel alloy.
• Alloy: A broader term for a metal made by combining two or more metallic elements.

Synonyms

• Copper-nickel alloy: A descriptive synonym, though it may not specify the exact proprietary composition.
• Resistance alloy: A functional classification for alloys like constantan used for their electrical properties.

Related Phrases/Compounds

• Constantan wire: Wire made from this alloy, used in electrical applications.
  • They ordered a spool of constantan wire for the experiment.

Học thuật

Noun

1. an alloy of copper and nickel with high electrical resistance and a low temperature coefficient; used as resistance wire

Từ đồng nghĩa

• eureka