Metal Detectors for Security Purposes
When dealing with security, many different ways of improving it have been made. Metal detectors, since their appearance many years ago, have been used not only as a hobby, but also as a very effective way to spot unwanted metals entering a secure zone.
In the case of airports, metal detectors have been used enormously because they are very accurate when dealing with pistols, knives and other weapons. Beside airports, metal detectors can be seen in concerts, football games, and in an infinite array of other places.
The concept of metal detectors for security purposes is very similar to the hobby-related detectors. The only real difference is the way in which they are used for the former detectors require to be bigger and must be capable to detect even the smallest of metals since a place's security depend on the detector's accuracy.
Security detectors can detect virtually any metal, opposed to hobby detectors which are frequently set to ignore certain metals with no monetary value.
Another use that is given to detectors, and I am sure you have seen in many places, is the detection of bar codes in stores. Though they are not necessarily metal detectors, the same concept applies and that is even though much technology is required in the later ones including computer software to update when a purchase has been made.
To conclude, metal detectors are very useful and their main use is not only for hobbies but also for security - reason for which they are even more important and their discovery more than a hundred years ago is one of the greatest discoveries ever made.
- Detecting Metals made easy!