The cost of Gas , Hybrid cars and EMFs

[ELA]

I have been looking in to Hybrid cars lately and am getting lots of hits on EMF concerns. I know it has been talked about here before but wanted to ask for futher input from others in the electrical industry.

In general I do not get worried about being around electric or magnetic fields in everyday sorts of situations. I realize that in lots of instances the magnetic fields are canceled by other nearby conductors (in the home and power lines).

Personally I have never felt comfortable being in areas thought to have high level electric or maganetic fields present. Not so much scientific as a gut feeling of mine. Never did like the concept of electric blankets.

This hybrid car debate has my attention. I find it interesting that the car companies will not offer any test data to fend off complaints.
I was seriously thinking about buying a hybrid and now I am thinking maybe I need to buy a decent AC guass meter to take on any test drives to take my own measurements

Will the hybrid car companies end up adding shielding to their vehicles in the future?

Here is a fun link that is a bit out there and trying to capitalize on peoples fears:

http://www.emfblues.com/CarRadiation.html
page down to Neutralizing Car EMFs

[ghostbuster]

Here is a link to a recent story in the New York times.

http://www.nytimes.com/2008/04/27/au...yt&oref=slogin

Enjoy

[ELA]

Thanks,
I have read that and many others.

What I am interested in is some real data?
Anyone tested cars for this?

[ghostbuster]

Originally Posted by ELA

Thanks,
What I am interested in is some real data?
Anyone tested cars for this?

ELA

Here is some German test data:

Magnetic fields

The numbers are in microtesla which is used to measure magnetic fields. The left values are at standstill with engine idling, the right when riding in 90 km/h (about 60 miles per hour?). As you can see the Prius has low values. I am not sure how this translates to EMF and milligauss. Maybe someone can explain?

Some translation for the numbers:

Vänster fot - Left foot
Höger fot - Right foot
Golv - Floor
Tröskel - Threshold?
Säte - Seat
Brösthöjd - Chest height
Huvudhöjd - Head height


http://wwwc.aftonbladet.se/nyheter/0202/14/stats.jpg


Note:1 microtesla equals 10 milligauss

all test results are in microtesla

Enjoy :smile:

[ELA]

Excellent and thanks for the data,

Interesting that the other non-hybrids had higher levels.
So am I converting correctly and that the Volvo S70 had 170 milligauss?

So you have the source? I wonder if these are all AC fields?

[LarryFine]

Wouldn't the steel between the motor and the passenger car block EMF's?

Are Prius motors AC or DC?

[ELA]

If I remember correctly the magnetic part of the EMF is blocked somewhat depending upon the permeability of the metal. But in some cases can actually "focus" the field and make things worse.

Mu-metal being the best for magnetic fields. But I am unclear as to how it might have to be formed to make an effective shield.

I think I have read that an inverter produces AC for the electric motor.

[ghostbuster]

Originally Posted by ELA

Excellent and thanks for the data,

Interesting that the other non-hybrids had higher levels.
So am I converting correctly and that the Volvo S70 had 170 milligauss?

So you have the source? I wonder if these are all AC fields?

Ela,I would suspect these are ac field measurement results.We have measured over 600 milligauss of dc field in the prius.

Larry,the prius has a 208 volt battery pack in the trunk.In the engine compartment, it is converted to 600 volts ac 3 phase.

:smile:

[HighWirey]

Originally Posted by ELA

I have been looking in to Hybrid cars lately and am getting lots of hits on EMF concerns. I know it has been talked about here before but wanted to ask for futher input from others in the electrical industry.

In general I do not get worried about being around electric or magnetic fields in everyday sorts of situations. I realize that in lots of instances the magnetic fields are canceled by other nearby conductors (in the home and power lines).

Personally I have never felt comfortable being in areas thought to have high level electric or maganetic fields present. Not so much scientific as a gut feeling of mine. Never did like the concept of electric blankets.

This hybrid car debate has my attention. I find it interesting that the car companies will not offer any test data to fend off complaints.
I was seriously thinking about buying a hybrid and now I am thinking maybe I need to buy a decent AC guass meter to take on any test drives to take my own measurements

Will the hybrid car companies end up adding shielding to their vehicles in the future?

Here is a fun link that is a bit out there and trying to capitalize on peoples fears:

http://www.emfblues.com/CarRadiation.html
page down to Neutralizing Car EMFs

Just look at Ted Kennedy, he has driven a hybred for years, never bothered him . . .

[ELA]

Maybe it was the cell phone!