Knowledge Base
The Magnetometer Guide
Everything you need to know about magnetometers, magnetic fields, and how they shape our world — explained with interactive diagrams, charts, and real-world examples.
What Is a Magnetometer?
A friendly introduction to magnetometers — what they are, what they measure, and why your smartphone already has one built in.
Read article Chapter 2How Magnetometers Work
From the Hall effect to fluxgate sensors and SQUIDs — a visual deep-dive into the physics behind magnetic field detection.
Read article Chapter 3Earth's Magnetic Field
Discover the invisible force field that protects our planet, guides compasses, and has flipped hundreds of times in Earth's history.
Read article Chapter 4Types of Magnetometers
An interactive comparison of every major magnetometer type — scalar vs. vector, portable vs. lab, and everything in between.
Read article Chapter 5Magnetic Field Units & Measurement
Tesla, gauss, oersted — what do they all mean? Includes an interactive unit converter and a visual field strength comparison chart.
Read article Chapter 6Applications of Magnetometers
How magnetometers are used across archaeology, space exploration, medicine, geology, navigation, smartphones, and more.
Read article Chapter 7History of Magnetometry
From ancient lodestones and Chinese compasses to SQUID sensors and smartphone chips — an interactive timeline of magnetic discovery.
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