A magnetometer is a device that measures magnetism: the direction, strength, or relative change of a magnetic field at a given location.

If you read about Hall effect sensors — the usual way to detect and measure magnetic fields these days — it sounds deceptively simple. There’s a metal plate with current flowing across it in one ...

Allegro’s ACS37200 200-A Hall current sensor slashes power dissipation with its 50-µΩ shunt, offering 1,400 V of isolation in ...

The moment a bullet leaves a rifle barrel, it’s dropping. To compensate for that drop and get bullets where they need to go, long-range shooters use one of two units of measure: MRAD or MOA. Both are ...