security metal detectors manufacturer for casino

They are also used in construction and excavation sites to locate buried metal pipes or cables. They are commonly used in security settings such as airports, courthouses and government buildings to detect weapons or other prohibited items. These detectors are used to quickly and easily scan people or objects for metal objects. They will keep the detector close or touch the surface until they locate the metal object, visualizing its location. The operator will then pinpoint the location by moving the detector back and forth over the area. The operator moves the hand-held detector over the surface under inspection until the metal is detected. Overall, a handheld detector acts as a metal detector that can be used in a variety of settings, such as security screening, metal detecting, and treasure hunting. Some handheld detectors also have the ability to differentiate between different types of metals such as ferrous and non-ferrous metals, by measuring the magnetic response of the metal object. The detector analyses the frequency shift and the signal, indicating the presence and possibly the location of the metal object.

The distortion created by the metal object’s magnetic field alters the resonant frequency of the search coil, which produces an audible and visual signal.

The current, in turn, produces an opposite magnetic field to the original magnetic field created by the coil. This field produces an electric eddy current within the metal object. When a metal object is introduced into the magnetic field, the magnetic field is distorted and this distortion is detected by the detector.Īs the metal object enters the magnetic field, it generates its own magnetic field. This detector consists of a coil of wire that creates a magnetic field when an electric current flows through it. Hand-Held Metal Detector Working PrincipleĪ Hand-held metal detector works based on the principle of electromagnetic induction.

Security metal detectors manufacturer for casino