magnetometers
Measure magnetic strength
Magnetometers are instruments that measure magnetic fields—their strength, direction, or both.
They detect everything from Earth's magnetic field to minute anomalies in archaeological surveys.
Smartphones contain magnetometers that function as compasses.
In physics and geology, magnetometers map magnetic variations: The magnetometer detected an iron deposit beneath the surface.
Earth's magnetic field
- paleomagnetismRemnant magnetism in rocks
- tectonicsStudy of crustal deformation
- plate boundariesEdges of crustal sections
- volcanologyStudy of erupting mountains
earth's core · continental drift · lithosphere · aurora borealis
Device producing high voltage
Responsiveness to stimuli
- precisionAccuracy of measurement
- calibrationAdjusting for measurement accuracy
- anisotropyDirection-dependent property variation
- hysteresisHistory-dependent system response
ferromagnetism · paramagnetism · diamagnetism · baseline · drift · resolution · dynamic range · sampling rate
Act of unearthing
- prehistoric sitesLocations from before history
- remote sensingGathering data without contact
- subsurfaceBelow the outer layer
- stratigraphyStudy of rock layers
metal detection · non-invasive · cultural heritage · prospection · feature detection · soil analysis · burial sites · fieldwork
Directing ships across oceans
- aeronauticalOf aircraft science
- dead reckoningPosition-tracking via estimated motion
- autopilotAutomated vehicle guidance system
- avionicsAircraft electronic equipment
geomagnetism
Earth's magnetic field
- paleomagnetismRemnant magnetism in rocks
- tectonicsStudy of crustal deformation
- plate boundariesEdges of crustal sections
volcanology · earth's core · continental drift · lithosphere · aurora borealis
induction coil
Device producing high voltage
sensitivity
Responsiveness to stimuli
- precisionAccuracy of measurement
- calibrationAdjusting for measurement accuracy
- anisotropyDirection-dependent property variation
hysteresis · ferromagnetism · paramagnetism · diamagnetism · baseline · drift · resolution · dynamic range · sampling rate · data logging
excavation
Act of unearthing
- prehistoric sitesLocations from before history
- remote sensingGathering data without contact
- subsurfaceBelow the outer layer
stratigraphy · metal detection · non-invasive · cultural heritage · prospection · feature detection · soil analysis · burial sites · fieldwork
maritime navigation
Directing ships across oceans
- aeronauticalOf aircraft science
- dead reckoningPosition-tracking via estimated motion
- autopilotAutomated vehicle guidance system
- magnetismferromagnetism, electromagnet, permanent magnets, electromagnets, demagnetize
- sensorsbiosensors, temperature sensor, pressure sensors, heat sensor, ammeter
- geophysicsearthquake, earthquakes, seismology, seismic waves, seismograph
- Earth observationremote sensing, satellite imagery, satellite data, weather satellites, thermal imaging
- polar magnetismcompass readings, magnetosphere
- wildlife trackingwildlife tracking, GPS collar, wildlife monitoring, GPS tracking, radio collar
magnetometersammeters
Devices measuring electrical current
galvanometers · electrometers · voltmeters · oscilloscopes · multimeters