Types Of Metal Detectors Pulse Induction

Pulse induction in saltwater.

Types of metal detectors pulse induction. The kind of metal detector we have built is based on pulse induction pi. Large versions of pi detectors are also commonly used at security checkpoints to detect weapons. The aquapulse is designed for deep diving and can withstand 100 meters of pressure. So if you plan to hunt beaches where there s lots of trash go with a multi frequency.

The pulse induction detectors are not affected by highly mineralized salt water coral rocks with a high iron content or magnetic black sand all of which drive conventional detectors crazy. Instead of using two separate coils a pulse induction metal detector uses one coil that both transmits and receives electrical currents. Pi machines also tend to be a bit heavier since many are built for diving. The aquascan aquapulse is a top notch piece of kit and many consider it the best pulse induction metal detector for divers.

Professionals use this machine to recover wrecks and track underwater cables. That s because vlf detectors perform so poorly in saltwater. See our complete guide on best beach metal detectors. The pulse induction or pi type of metal detector is a more specialized type of unit most commonly used by treasure hunters searching for items deep under the surface.

These currents are released in pulses with anywhere between 100 to several hundred pulses in a second. This type of detector technology is different. Pi systems may use a single coil as both transmitter and receiver or they may have two or even three coils working together. This type of metal detector sends powerful short bursts pulses of current through a coil of wire.

Pi detectors can t distinguish between one type of metal or another they are really useful in saltwater hunts. Each pulse generates a brief magnetic field. The main types of metal detectors are beat frequency oscillation very low frequency pulse induction and industrial. Aquascan aquapulse aq1b diver metal detector review.

Another common type are stationary walk through metal detectors used for security screening at access points in prisons courthouses and airports to detect concealed metal weapons on a person s body. It can also find other types of metal so don t think that just because many people purchase it for its ability to find gold that this is all. If you are looking for small nuggets or large flakes of gold this will be the type of detector you want. Pi detectors aren t as popular as vlfs but they definitely have a purpose to serve.