magnetic pollution in video, part 1

[Christophe]

Here is the 1 part of the video (small but I still spent 6 h above mounting included ) of (electro) magnetic measurements achieved through this magnetic field sensor

On econology: https://www.econologie.com/ondes-magnet ... -3832.html
On Youtube:

On DailyMotion:

Tests performed for the 1 part:

- power cable (on / off)
- halogen bulb
- neon bulb (4 models)
- neon (2 models)
- mobile phone (in standby and reception)
- microwave

For the 2 part I would do:
- TV / LCD
- Wireless
- Test reinforced on fluorescent bulbs (lower quality than the Megaman, comparison with low prices)
- LED bulb
- Small transformers
- Permanent magnets (just to see what the field corresponds to)
- Laptop
- Hair dryer
- Headphone (if significant)
- Screening tests (if possible)

Topic initiator:
measures-base-of-fields-electromagnetic-t5042.html

[s3phy]

Be careful with the terms used, they are fluorescent tubes and not neon lights (neon lights are used on store signs for example) ... For the magnetic field around your fluorescent fixtures, you can be sure that its source is the ballast, since I suppose that your two luminaires are ferro-magnetic ballast (those which have starters and which flash at startup)

[Superform]

on the 2nd "neon" you have a plastic cover ... that could not explain the difference?

[Christophe]

a) Yes these are old magnetic iron ballast but if it was the balast then the disturbance would be rather a sphere around the balast than a cylinder around the tubes no? I speak for the little tube especially or it is very obvious: it follows the tube perfectly (unless it is an elongated ballast that has the length of the tube ???). I guess it's related to the diameter of the tube itself (bigger for the small tube).

b) I do not think that plastic changes anything. Plastic is not known to have an influence on EM waves ...

If not on the other subject, Camel made some judicious remarks:

Hi Christopher!

Good video, indeed, the text scrolls quickly at the beginning, but hey, you can always press the "pause" button on the player ...

Regarding the strange difference that you noticed between your small fluorescent bench top and the double "large model", it may be that the fluorescent tubes in tandem are mounted in phase opposition, which would create a cancellation of the EM field ...
To check it, just remove one, and see if there is a difference ...

For the microwave, it's the complete hallu!

I remember having learned, during an internship in home appliances, to manufacture a leak detector EM microwave for cheap:

You take a recovery "firefly" (you know, the lights that are found in particular in the luminous buttons of freezers, and also in the luminous switches for the lighting of the cellars) to which you cut the two feeding legs.

Then you take a piece of plastic or wood that you just drill to the right diameter to insert the light. It's ready.

If you put the thing in the microwave, and you make it work, the light should come on.

By cons, if you walk around the door (at the joints)
you must not have anything - if it lights up, it means that you have a leak of μ waves ...

Your device seems to be more sensitive than my hack, but I still wonder about the nature of what it detects ...

Indeed, it is necessary to know that a particular care is brought to the waveguide of the klystron (the machine which generates the μ waves) and to the watertightness of the speaker with respect to the μ waves (cage of Faraday) .

On the other hand, for having disassembled, I can testify that the BIG power transformer is not specially shielded, and must therefore not badly radiate, but in 50 Hz, him.

So, maybe it's him that your device detects ...

... well, all this does not especially clear the microwave, which remains in my eyes a big shit, in all points of view (and that does not come to tell me that it saves time, I tested my own methods for baking, reheating and thawing, and I can assure that I will, too, see faster than the microwave!)

Congratulations for your perseverance!

See you,

Michel

[Remundo]

Magnetic and electromagnetic field detector

Scientists believe that from a level of 2-3mG, these electromagnetic fields increase the risk of certain diseases such as cancer.
A constant value of 0.1mG indicates a normal zone, a level of 3-6mG is already slightly harmful and a value of 10mG indicates a danger zone.

Hello everyone,

The field values ​​in themselves are not relevant to judge the danger, on the other hand the exposure time x the field = a dose and there we can start to discuss, and make a big controversial debate on the "admissible dose" .

Finally, anyway, it is infrared radiation on short time, it's not very bad ... The guy who gets on the beach in full sun all day takes much more.

I also have some questions about what the device actually measures. It seems to be sensitive to periodic magnetic fields. It is probably an inductive fluxmeter.

At this point, it does not measure a stationary magnetic field, even very intense. Similarly for a variable magnetic field, but isotropic (which shares in all directions equiprobably).

This is perhaps why with 2 neons, emissions seem to decline, magnetic fluxes oppose ...

Thank you Christophe for this experimental and playful moment!

Nice video and Christophe's initiative!

[Christophe]

Waw video on Youtube is one of the most seen in the category Science-France for the day:

http://www.youtube.com/browse?s=mp&t=t&c=28&e=fr_FR&p=1

[jonule]

Finally, anyway, it is infrared radiation on short time, it's not very bad ... The guy who gets on the beach in full sun all day takes much more.

you do not understand Remundo: the guy who goes on the beach CHOOSES what he does, not the one who thawed his steak!


capice? dictator!

[jonule]

Technical notice of the device used:
https://www.econologie.com/shop/file/Notice_detecteur_champ_magnetique.pdf

measurement from 1 to 10 mG for milli Gauss we read:

EMF is the acronym for "electromagnetic field" or electromagnetic field (ECM). Often we talk about low frequency electromagnetic fields in the context of our 50-60Hz household current. We generate EMF every time we use electricity. VTEMF detects the low-frequency fields we usually find in our homes, schools and workplaces.

EMFs are invisible but we know that they generate electrical currents in our body and that they exert a negative influence at the cellular level. According to different studies of magnetic fields from 2 to 3mG are already harmful.
Many scientists claim that electric fields of more than 2.5mG increase the risk of cancer and other ailments such as malformations, learning disabilities, miscarriages, leukemia in children, increasing stress, depression, etc.

a constant value of 1, 3, 6, 10mG anywhere in the part indicates an external source of EMC (eg high voltage lines).
b. occasional peak values ​​(“hot spots” or hazardous areas) indicate an internal source of CM eg wiring or appliances.

a constant value of 0.1mG indicates a normal zone, a level of 3-6mG is already slightly harmful and a value of 10mG indicates a danger zone.

[Remundo]

OK Jonule for the perniciousness of the thing.

My message was more focused on estimating the danger of the thing

Technical notice of the device used:
https://www.econologie.com/shop/file/Notice_detecteur_champ_magnetique.pdf

negative influence at the cellular level. According to different studies of magnetic fields from 2 to 3mG are already harmful.
Many scientists claim that electric fields of more than 2.5mG increase the risk of cancer and other ailments such as malformations, learning disabilities, miscarriages, leukemia in children, increasing stress, depression, etc.

What details on the references ... "a lot of scientists, according to different studies" ...

[Christophe]

I also have some questions about what the device actually measures. It seems to be sensitive to periodic magnetic fields. It is probably an inductive fluxmeter.

I think we all ask the same question, considering the price it must not be complicated inside ...

It reacts with a permanent magnet just make a slight movement between 2 if it can help you in your reflection?

Now we must take its measures as indicative and not quantitative.

For those interested in the topic, you can apply for a free professional EM check at any mobile phone provider. The law requires them to pay for a measurement campaign in your home. I asked in 2002 and Apave and came a few weeks later, 100% paid by Bouygues Tel .... and with laboratory gear!