Energetic Forum  
Facebook Twitter Google+ Pinterest LinkedIn Delicious Digg Reddit WordPress StumbleUpon Tumblr Translate Addthis Aaron Murakami YouTube 2018 ENERGY CONFERENCE - ALL SEATS SOLD OUT!

2018 Energy Science & Technology Conference
Sponsored by Teslacoin Foundation

Teslacoin Foundation

https://www.teslastarter.org


Go Back   Energetic Forum > >
   

Renewable Energy Discussion on various alternative energy, renewable energy, & free energy technologies. Also any discussion about the environment, global warming, and other related topics are welcome here.

* NEW * BEDINI RPX BOOK & DVD SET: BEDINI RPX

Reply
 
Thread Tools
  #1  
Old 12-31-2018, 05:03 AM
spacecase0's Avatar
spacecase0 spacecase0 is offline
Senior Member
 
Join Date: Nov 2014
Posts: 360
velocity factor of black iron oxide ?

anyone know velocity factor of black iron oxide powder ?
I am trying to design something and can't seem to figure out how fast radio waves go through the iron oxide powder, like the kind you find in copy toner.
I know some of you have made your own transformer cores,
and hope someone already knows this answer.
I have searched the web for a few weeks now and just can't find the answer.
thinking about a frequency in the 146MHz range
but would be up for data for any frequency
seems like some of the ferrite cores might be similar, but not sure about that.
I just don't want to have to measure this for myself as I don't think I have the hardware to do it accurately.
__________________
 

Last edited by spacecase0; 12-31-2018 at 05:08 AM.
Reply With Quote
Sponsored Links

Download SOLAR SECRETS by Peter Lindemann
Free - Get it now: Solar Secrets

  #2  
Old 01-01-2019, 08:43 PM
RAMSET RAMSET is offline
Gold Member
 
Join Date: Mar 2009
Location: NYC and Conn USA
Posts: 1,366
been asking around

Have had suggestions on how to check this on the bench
however as you most likely know the variables would be or could be an issue [quality data or ? inaccurate ?

still asking ,its a cool question IMO and actually fits [the answer]
with some other ideas and potential experiments.

respectfully
Chet K
__________________
 
Reply With Quote
  #3  
Old 01-01-2019, 11:05 PM
mikrovolt mikrovolt is offline
Silver Member
 
Join Date: Aug 2010
Posts: 787
Absorbing can be related to Suppressing (EMI). Making epoxy bead, T-37 toroid with silicon mold as inductor or inverse relation
as suppressor with bead cylinder shape and very small toroids for quantitative measurements.
After 100 Mhz a typical ferrite bead stops being inductive and starts being resistive (heat).
Making a T-37 toroid with silicon mold as inductor or inverse relation as suppressor with cylinder shape.
https://www.resinobsession.com/resin...n-resin-beads/
Testing ferrite beads is shown in the video, filtering a spectral line or one of the frequency bands.
https://youtu.be/IvmSNmnFMxA
Murata application manual.
https://www.murata.com/~/media/webre...ifil/c39e.ashx

Also link below that in the section subtitled "Short history of ferrites." the soft magnetics in the lab proved to be elusive.
I think that might be something like the frequency vs impedance chart for ferrite ceramic cores. Epoxy cores is an interesting subject.

https://palomar-engineers.com/ferrit...-mix-selection
__________________
 

Last edited by mikrovolt; 01-02-2019 at 12:10 AM.
Reply With Quote
Reply

Tags
iron, oxide, find, cores, frequency, answer, factor, velocity, powder, black, hardware, range, thinking, 146mhz, accuratly, ferrite, data, similar, measure, hope, fast, radio, waves, figure, design

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



Please consider supporting Energetic Forum with a voluntary monthly subscription.

For One-Time Donations, use admin@ this domain > energeticforum.com

Choose your voluntary subscription

All times are GMT. The time now is 11:04 PM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Search Engine Optimisation provided by DragonByte SEO v1.4.0 (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Shoutbox provided by vBShout v6.2.8 (Lite) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
2007-2015 Copyright - Energetic Forum - All Rights Reserved

Bedini RPX Sideband Generator

Tesla Chargers