A metal detector is really called a magnetometer (Magnet meter) .
A magnetometer produces a strong magnetic field. Any metal objects passing through the magnetic field will react with the magnetic field and begin to conduct a very slight electrical current. This process is called induction. These electrical currents cause their own much weaker magnetic fields. The magnetometer detects that new magnetic field and the interaction with the primary magnetic field it is producing. When the interaction reaches a certain per-determined threshold, the alarm is triggered. At this point officers will use hand-held magnetometers (known as wands) to pin-point the source of the alarm. The noise they make is an audible representation of the strength of the secondary magnetic fields produced by metal objects as the wand passes by.
Magnetometers can be so sensitive as to detect tooth fillings, titanium implants and other non-ferrous metals. Most metal detectors in airports are tuned so they are not triggered for tooth fillings or small metal implants like surgical pins. But they will be triggered by larger implants like knee replacements, hip implants, etc.
Contrary to folk lore, an airport magnetometer CAN detect non-ferrous (no iron, non magnetic) metals like titanium, brass and aluminum just fine. As long as the metal can conduct electricity (which is one of the properties of elements called metal) it can be detected by the device.
Anyone with a pacemaker should never go through the metal detector since the magnetic field can affect the electrical pulses generated by the pacemaker to keep the heart beating at a steady rate. Though highly unlikely, it is possible that a person with a pacemaker going though a magnetometer could go into cardiac arrest due to fibrillation. Simply tell the attendant that you have a pacemaker and they will do a hand search instead.
As long as it can conduct electricity it will be detected by a well-tuned magnetometer.
No. The smallest item I have had to remove was my watch.
If there is metal in the case it is possible that your phone case will set off the metal detector. It's always best to remove personal items before going through the metal detector. Unless the phone case has metal in it, it will most likely not go off in a metal detector. But, now airports have full body scanners and all personal items are asked to be removed.
If you have a non-removable piercing and the metal detector goes off at airport security, inform the security personnel about your piercing before you go through the scanner. They may conduct a manual inspection or use a handheld metal detector to verify the source of the alarm. It’s helpful to arrive early at the airport to allow time for any additional screening. Always check with your airline beforehand for their specific policies regarding body piercings.
A metal detector can detect all types of metal....depending on in what type of soil it is in.
A metal detector will not find vegetable matter.
The metal detector was invented in 1931 by Gerhard Fisher.
Hematite, primarily composed of iron oxide, is a mineral that does contain iron, which can potentially trigger a metal detector. However, the response may vary depending on the sensitivity of the detector and the amount of hematite present. Generally, small amounts of hematite may not set off an alarm, but larger pieces could. It’s advisable to check airport regulations regarding carrying mineral specimens.
Look for the metal detector with the most discoveries and deepest penetration.
is there any metal detector company by the name "Zealot"
Depends on if he's a quantum "metal detector guy". If he is, then maybe.
it depends if the inhaler is metal
Yes, you can wear overalls through airport security as long as they do not contain any prohibited items or metal accessories that may trigger the metal detector. It is recommended to wear clothing that is easy to remove for the security screening process.