Magnetic Field Analyzer
Archiver
Posts: 46,084
I have developed a magnetic based switch with a very narrow field
sensivity. It was discovered by accident. I really like to analyze the
magnetic field visually to further develop it. A PC based system would
be ideal. Anyone knows of such too or system?
- Johari
sensivity. It was discovered by accident. I really like to analyze the
magnetic field visually to further develop it. A PC based system would
be ideal. Anyone knows of such too or system?
- Johari
Comments
johaziz@y... writes:
I have developed a magnetic based switch with a very narrow field
sensivity. It was discovered by accident. I really like to analyze the
magnetic field visually to further develop it. A PC based system would
be ideal. Anyone knows of such too or system?
- Johari
A linear Hall effect sensor may help you. It may not tell you the amount of
gauss, but will give you relative strength vs sensing distance.
ken
[noparse][[/noparse]Non-text portions of this message have been removed]
software on this site useful. http://www.vizimag.com/
jim
http://www.geocities.com/jimforkin2003/
Original Message
From: smartdim@a... [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=CPOCZY8vJnIljpkjnEWs8Lk5tM8rq9Qa0mTtMWRf1WhNZfyEwGX4dPIBdPyIU_kVXa_GDtJL]smartdim@a...[/url
Sent: Thursday, December 11, 2003 9:24 AM
To: basicstamps@yahoogroups.com
Subject: Re: [noparse][[/noparse]basicstamps] Magnetic Field Analyzer
In a message dated 12/11/2003 3:49:27 AM Pacific Standard Time,
johaziz@y... writes:
I have developed a magnetic based switch with a very narrow field
sensivity. It was discovered by accident. I really like to analyze the
magnetic field visually to further develop it. A PC based system would
be ideal. Anyone knows of such too or system?
- Johari
A linear Hall effect sensor may help you. It may not tell you the amount of
gauss, but will give you relative strength vs sensing distance.
ken
[noparse][[/noparse]Non-text portions of this message have been removed]
To UNSUBSCRIBE, just send mail to:
basicstamps-unsubscribe@yahoogroups.com
from the same email address that you subscribed. Text in the Subject and
Body of the message will be ignored.
Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>I have developed a magnetic based switch with a very narrow field
>sensivity. It was discovered by accident. I really like to analyze the
>magnetic field visually to further develop it. A PC based system would
>be ideal. Anyone knows of such too or system?
>
>- Johari
An old trick is to lay a paper over the area and trace the lines of force
with a compass. As I remember from some 30+ years ago you could then make
measurements on the lines and get a field strength from that. The only hang
up is that you need to do it in a fairly non-magnetic area (I did one in
the middle of a 100 acre farm plot). Beyond that there are a lot of gauss
meters out there but they tend to be expensive due to their nature they
work basically like and NMR by watching for a flip of the nucleus of a
given molecule. This means it needs a very precise RF source and ability to
measure it accurately since the RF frequency needed is related directly to
the field strength these gaussmeters are often used with EPR's (AKA ESR's)
to register field strength for experimental data. You could also use a hall
effect device but the y need to be carefully calibrated and adjusted for
temperature. matt
Matt Seniff
Principle Electronic Technician
Classroom Technology Support Services
Illinois State University
PH 309-438-7734
FAX 309-438-3623
low-cost solution:
<http://www.ramseyelectronics.com/cgi-bin/commerce.exe?preadd=action&key=TFM3C>
if that breaks, try this:
http://tinyurl.com/ys0w [noparse][[/noparse]ramseyelectronics.com]
Here's the description:
CLIP
This product is part of the Ramsey Holiday Sale! This sale ends 1-15-04
so DON'T delay!
SCI-FI Detector You Can Build!
* SEE RF, electric, and magnetic fields!
* Watch the magnetic field of the earth!
* Sense different magnetic poles!
* Detect RF transmitter fields
* Sci-Fi design
* Runs on 6 VDC
We realize you can't "beam down" to the surface of the planet, but you
CAN have our new Tri-Field Meter to detect and sense the fields around
you! This really neat project actually senses and detects magnetic
fields, RF fields, and electric fields! Even Mr. Spock would like this
one!
The TFM3 has three separate field sensors that are user selectable to
provide a really cool readout on two Sci-Fi styled LED bar graphs!
Utilizing the latest technology, including Hall Effect sensors, you can
walk around your house and actually "SEE" these fields around you! You
will be amazed what you see. How sensitive is it? Well, you see the
magnetic field of the earth...THAT'S sensitive! Also detect radiation
from monitors, TV's, electrical discharge, and RF emissions. You will
have fun finding these fields and at the same time learn the technology
behind them. Runs on 6VDC (4 AAA batteries, not included). Live long and
prosper! (Editors note, our project engineer told me I could detect
static in my hairbrush several feet away... But I don't have any hair!!!)
/CLIP
--
Vern Graner CNE/CNA/SSE | "If the network is down, then you're
Senior Systems Engineer | obviously incompetent so why are we
Texas Information Services | paying you? Of course, if the network
http://www.txis.com | is up, then we obviously don't need
Austin Office 512 328-8947 | you, so why are we paying you?" VLG
Matthew W Seniff said:
> At 11:46 AM 12/11/2003 +0000, you wrote:
>>I have developed a magnetic based switch with a very narrow field
>>sensivity. It was discovered by accident. I really like to analyze the
>>magnetic field visually to further develop it. A PC based system would
>>be ideal. Anyone knows of such too or system?
>>
>>- Johari
>
> An old trick is to lay a paper over the area and trace the lines of force
> with a compass. As I remember from some 30+ years ago you could then make
> measurements on the lines and get a field strength from that. The only
> hang
> up is that you need to do it in a fairly non-magnetic area (I did one in
> the middle of a 100 acre farm plot). Beyond that there are a lot of gauss
> meters out there but they tend to be expensive due to their nature they
> work basically like and NMR by watching for a flip of the nucleus of a
> given molecule. This means it needs a very precise RF source and ability
> to
> measure it accurately since the RF frequency needed is related directly
> to
> the field strength these gaussmeters are often used with EPR's (AKA
> ESR's)
> to register field strength for experimental data. You could also use a
> hall
> effect device but the y need to be carefully calibrated and adjusted for
> temperature. matt
>
>
> Matt Seniff
> Principle Electronic Technician
> Classroom Technology Support Services
> Illinois State University
> PH 309-438-7734
> FAX 309-438-3623
>
>
> To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
> from the same email address that you subscribed. Text in the Subject and
> Body of the message will be ignored.
>
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>
>
>