radio frequency detector

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radio frequency detector

Postby Adelelee » 07 Apr 2016, 06:30

is the metal detector a radio frequency detector? how does it work? is the safe for child?
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Joined: 23 Mar 2016, 02:39

Re: radio frequency detector

Postby Marrow » 07 Apr 2016, 08:28

Ooo now there's an interesting question. To be an RF detector, it would need to measure the induced current (or, similarly, the induced time-varying magnetic field) in a conducting part of the detector (aka antenna), preferably with the size of the antenna matched to the wavelength of the RF field you are trying to detect.

Whereas a metal detector generates its own EM field, and measures the perturbations on that field caused by the presence of conducting (e.g. metallic) objects.

Does that clarify anything for you ;)
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Re: radio frequency detector

Postby emzit » 07 Apr 2016, 11:14

Marron, you didn't say if it was safe for children - as a forum about babies and children this is the most important piece of information. Tsk tsk.
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Re: radio frequency detector

Postby StJuniper » 07 Apr 2016, 14:51

Still, I think she wins the internet for the day.
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