STEORN DEMO LIVE & STREAM in Dublin, December 15th, 10 AM

[Staffman]

FYI.....

For those looking for Finemet materials, specifically the FT-3L, you will need to contact Hitachi Metals. (Be sure you read the form before sending..... I thought it was quite funny....)

http://www.hitachi-metals.co.jp/e/cntct/indx_cntct2.html


Below is also a PDF showing Finemet properties.

http://www.manz-electronic.de/index/download/FINEMETmaterials.pdf

[maw2432]

Because they are square loop cores and they will need a small reset current in order for the cores to become fully attractive again.  Square loop cores are not a good choice in my opinion.  I'm just going to say it, square loop cores are a terrible choice for the Orbo, IMO.

GB

Well that just about says it all.   Someway I was convinced to order Metglas cores which .. I did and now have waiting on some other parts and info.   

Now it seems the cores are not what should be used... anyone doing any testing and recording results.... back to real science would be nice.

Bill

[woopy]

Well that just about says it all.   Someway I was convinced to order Metglas cores which .. I did and now have waiting on some other parts and info.   

Now it seems the cores are not what should be used... anyone doing any testing and recording results.... back to real science would be nice.

Bill

Hi m2

yes it is probably the big problem here

as nobody knows the exact  working ORBO process       all of us try to suggest  solutions       and as far as i see, we are going towards lot of solutions and contra solutions  but no results and only suggestions


So what do we want to do



-or we silentely attend the ORBO news   and eventualy public demonstration of the  OU


-or we go on  our way

- in this respect  for  me     one of the answer is      staying in real life  make protos and get the touch of what is going on       directly in contact with my fingers...!

so last testing

new


1- i added a boost coil  0.5 mm around the original0.3 coil  ( ala Jean louis Naudin boost coil)   = about 10 % more power

2- i noticed that the distance from the coil to the magnet is very important    i mean only mm ofset is  very important.

3- I wounded a 3mm  Fence Wire core  with a very thin  o. 1 mm coper , the resistance is  60 Ohms  and the results is     6 volts and 40 MA average is about i turn per second absolutely staedy spin bsince 3 hours

good luck

laurent

[callanan]

Hi All,

My metglas cores have come in at last. Here are some pictures of them compared to the ferrite cores I have been using.

Regards,

Ossie

[PaulLowrance]

There are so many errors in this page alone that I wouldn't even know where to start, LOL. "Reset current"?  Studying "effective permeability" will help a lot of people here. The core is not a square loop for open magnetic loops, which is the case for the magnet to core interaction. And it doesn't matter because the reason the core is square loop is because it takes hardly no longitudinal applied field to flip it. ... I don't even want to spend the time to help people here anymore because it's a hopeless cause. Good luck!