We’re used to Hall effect devices as proximity sensors in mechanical systems, used to provide detection ... magnetic field strength meter that uses a UGN 3503U Hall effect device. The circuit ...

The external magnetic field modulates the inductance of the loop, which is detected by monitoring the resonant frequency of the RF circuit. RF SQUIDs are simpler to fabricate but ... The high ...

The military can use the Earth’s magnetic field for ultra-long-distance communication and radar detection. Spacecraft and satellites rely on it as a protective umbrella to dodge devastation from ...

Another technique picks up the magnetic field and measure the spectrum[3]. It is unable to reproduce the original current nor di/dt waveforms from the spectrum because the phase information is lost.