Definition

1. Noun:
   • An instrument for measuring angles: A goniometer is a device used to measure angles, particularly in scientific and technical fields.
   • A direction finder for radio signals: In radio communications, a goniometer is a specific type of direction finder that determines the angular direction from which incoming radio signals originate.

Usage

• The primary use of a goniometer is for precise angular measurement.
• In radio technology, a goniometer is a key component for locating the source of transmissions.

Examples

• Noun:
  • The crystallographer used a goniometer to measure the angles between the faces of the mineral.
  • The naval vessel's goniometer quickly pinpointed the bearing of the distress signal.

Advanced Usage

• "Optical goniometer": A device used to measure the angles between the faces of crystals or other reflective surfaces.
  • An optical goniometer is essential for identifying minerals based on their crystal structure.
• "Radio goniometer": The component within a radio direction-finding system that determines the signal's angle of arrival.
  • The old shortwave listening post was equipped with a sophisticated radio goniometer.

Variants and Related Words

• Goniometric (adj): Pertaining to the measurement of angles.
  • The goniometric data was recorded for analysis.
• Goniometry (n): The science or process of measuring angles.
  • Crystallography relies heavily on the principles of goniometry.

Synonyms

• Angle measurer: A general term for a device that measures angles.
• Direction finder: A device for determining the direction of something, especially radio waves (this is a specific application of a goniometer).

Related Phrases

• "To take a goniometer reading": To use a goniometer to obtain an angular measurement.
  • The technician was asked to take a goniometer reading of the antenna's alignment.

Noun

1. direction finder that determines the angular direction of incoming radio signals