Detector, that gives a signal when it detects the presence of metal; used to detect the presence of stray bits of metal in food products or to find buried metal. This system is very frequently used during VIP’s visits, important conferences and seminar etc. It is used to trace ferrous and non ferrous metals carried by an individual. It consists of search coil and control module housed on an archway. The detector has a pre-programmed sensitivity levels which can be high, medium, low. Metal-detector technology is a huge part of our lives, with a range of uses that spans from leisure to work to safety. The metal detectors in airports, office buildings, schools, government agencies and prisons help ensure that no one is bringing a weapon onto the premises. Consumer-oriented metal detectors provide millions of people around the world with an opportunity to discover hidden treasures.
The operation of metal detectors is based upon the principles of electromagnetic induction. Metal detectors contain one or more inductor coils that are used to interact with metallic elements on the ground. Control and audio visual alarms are fixed on the top of the rear side of archway. It requires nearly 10 min for installation.
Some no recreational applications for metal detectors are:
- Airport security - screen people before allowing access to the boarding area and the plane (see How Airport Security Works).
- Building security - screen people entering a particular building, such as a school, office or prison.
- Event security - screen people entering a sporting event, concert or other large gathering of people.
- Item recovery - help someone search for a lost item, such as a piece of jewellery.
- Archaeological exploration - find metallic items of historical significance.
- Geological research - detects the metallic composition of soil or rock formations.
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