Definition

1. Noun:
   • A measuring instrument for measuring variations in a magnetic field: A variometer is a sensitive scientific device used to detect and quantify changes in the strength of a magnetic field.

Usage

• The primary use of the word variometer is as a technical noun in the fields of geophysics, aviation, and electronics. It refers specifically to an instrument.
• It is typically used in scientific, engineering, and technical contexts.

Examples

• Noun:
  • The geologist used a variometer to map the local magnetic anomalies.
  • In the cockpit, the variometer indicates the rate of climb or descent for the glider pilot.

Advanced Usage

• "Vertical speed variometer": In aviation, this specific type of variometer measures the rate of ascent or descent of an aircraft, particularly gliders and sailplanes. It functions by detecting changes in atmospheric pressure.
  • The pilot kept a close eye on the vertical speed variometer to find the strongest thermal lift.

Variants and Related Words

• Variometric (adj): Pertaining to or involving measurement by a variometer.
  • The study included a variometric analysis of the data.

Synonyms

• Magnetometer (specifically for measuring magnetic field strength, though not exclusively its ).
• Rate-of-climb indicator (specifically for the aviation context).

Different Meanings

• The core meaning of variometer relates to measuring variation. While its most precise definition is for magnetic fields, in specialized contexts like aviation, it has been adapted to measure the rate of change (variation) in altitude. This is considered an application of the core concept to a different physical quantity (pressure/altitude instead of magnetism).

Noun

1. a measuring instrument for measuring variations in a magnetic field