Editing Metal detector (section)

=== Military ===
{{Unreferenced section|date=August 2023}}
The first metal detector proved inductance changes to be a practical metal detection technique, and it served as the prototype for all subsequent metal detectors.

Initially these machines were huge and complex. After [[Lee de Forest]] invented the triode in 1907 metal detectors used [[vacuum tube]]s to operate and became more sensitive but still quite cumbersome. One of the early common uses of the first metal detectors, for example, was the detection of landmines and [[Unexploded ordnance|unexploded bombs]] in a number of European countries following the First and [[World War II|Second World Wars.]]

==== Uses and benefits ====
Metal detectors have several [[Demining|military uses]], including:

*Exposing mines planted during the war or after the end of the war
*Detecting dangerous explosives and [[Cluster munition|cluster bombs]] 
*Searching  people for [[weapon]]s and [[explosive]]s using hand-held metal detectors

==== War mine detection ====
[[Demining]], also known as mine removal, is the method of clearing a field of landmines. The aim of military operations is to clear a path through a minefield as quickly as possible, which is mostly accomplished using equipment like [[mine plow]]s and [[blast wave]]s.

Humanitarian demining aims to clear all landmines to a certain depth and make the land secure for human use. Landmine detection techniques have been studied in various forms. Detection of mines can be done by a specially designed metal detector tuned to detect mines and [[bomb]]s. Electromagnetic technologies have been used in conjunction with ground-penetrating radar. Specially trained dogs are often used to focus the search and confirm that an area has been cleared, mines are often cleared using mechanical equipment such as flails and excavators.