Hand-held metal detector is a kind of metal detector. It is named after the hand-held method of use. It is mainly used for factory anti-theft, site security inspection and examination room anti-cheating. Compared with security doors, hand-held metal detectors are more accurate. Through the electromagnetic induction of metal objects to alarm, the main methods of alarm are sound and light, vibration, or through earphones.
Handheld metal detectors are designed to detect metal objects carried by people or objects. It can detect weapons, explosives or small pieces of metal in packages, luggage, letters, fabrics, etc. carried by people. The special appearance of its sensitive surface makes handling easy. Better than ring sensor probes. Ultra-high sensitivity, special application. Such as prisons, chip factories, archaeological research, hospitals, etc.
Composition of a hand-held metal detector
The hand-held metal detector consists of three parts: the fuselage part, the ring part and the alarm part.
1. Body part
The fuselage of the hand-held metal detector is the main part of the instrument, it is equipped with the main electronic components of the instrument, and the power alarm part is also included.
2. Ring section
The annular part is to generate a constant frequency magnetic field. Through the metal cutting magnetic field, the principle of destroying the constant frequency is determined to determine whether there is a metal object and its location.
3. Alarm part
When the detector is close to the metal object, the small horn will sound an alarm to remind the operator of the detector.
Handheld metal detectors are used by security and law enforcement officers for non-contact body searches to find hidden metal objects and weapons. When performing a security check, the user scans a few centimeters from the subject's body, scanning the entire body and potential areas in the correct way to detect hidden metal objects or weapons.
Advantages of hand-held metal detectors
Handheld metal detectors are always designed to have excellent features, are easy to operate and maintain, and are not heavy. In this case, the person holding them won't get tired after holding them for a long time. Another key point of hand-held metal detectors is that such metal detectors always have high sensitivity, and some of them can even detect some small objects such as pins. For example, when people carry guns or lives, hand-held metal detectors can detect them within a certain distance. Once such items are found, an alarm can be issued immediately, so that people can keep abreast of the situation and prevent people from carrying them. This handheld metal detector is used to protect people's safety.
