Definition

Noun: A scientific instrument used for measuring the strength and/or direction of magnetic fields.

Usage

A magnetometer is a device used to detect and quantify magnetic fields. It functions as a meter for magnetism. - The geologist used a magnetometer to survey the area for mineral deposits. - Modern smartphones contain a tiny magnetometer that acts as a digital compass.

Advanced Usage

• Scalar Magnetometer: Measures the magnitude (strength) of a magnetic field without regard to its direction.
  • The scalar magnetometer provided a reading of the field's total intensity.
• Vector Magnetometer: Measures the magnetic field component in a specific direction, providing information about both strength and orientation.
  • The research required a three-axis vector magnetometer to map the field's complete structure.

Variants and Related Words

• Magnetometry (n): The science or process of measuring magnetic fields.
  • The study involved advanced magnetometry to analyze the rock samples.
• Magnetometric (adj): Relating to magnetometry or magnetometers.
  • They conducted a magnetometric survey of the archaeological site.

Synonyms

• Gaussmeter: An instrument specifically calibrated to measure magnetic flux density in units of gauss or tesla.
• Magnetic field meter: A descriptive synonym for a magnetometer.

Related Phrases / Compound Terms

• Proton precession magnetometer: A type of magnetometer that uses the precession of protons in a magnetic field to measure its strength.
  • The proton precession magnetometer is valued for its high absolute accuracy.
• Fluxgate magnetometer: A sensitive type of vector magnetometer often used in geological and space applications.
  • The satellite was equipped with a fluxgate magnetometer to study Earth's magnetosphere.

Noun

1. a meter to compare strengths of magnetic fields