×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Are you an
Engineering professional?
Join Eng-Tips Forums!
• Talk With Other Members
• Be Notified Of Responses
• Keyword Search
Favorite Forums
• Automated Signatures
• Best Of All, It's Free!

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

#### Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

# Calculation of magnetic moment from cored solenoid

## Calculation of magnetic moment from cored solenoid

(OP)
Can anybody inform me how to calculate the magnetic moment of (not field around) a solenoid coil wound on a tubular iron core? I´d also like to know how to check that the iron doesn´t go into saturation.

I´m a little embarrassed to ask since I have a M. Sc. in electrical engineering, but I just can´t make anything useful out of my textbooks or previous experience.

MrMagnetic

### RE: Calculation of magnetic moment from cored solenoid

If you'll let me have your e-mail address, iii mail a microsoft document version of my suggestion to you. I can be reached at mowete@hotmail.com.
cheers!
alexike

### RE: Calculation of magnetic moment from cored solenoid

You can calculate the solenoid field easily enough H~NI/L

N=number of turns in length L
I=amperage
L=Length of winding

Whether saturation occurs is a matter of the coercivity of your material. some materials saturate (technically) at very small fields.

if you are performing ac measurments saturation is easily identified: at saturation the current is limited by the impedence of the coil wiithout iron present.

some of the best reference material is in the form of transform design equations.

The magnetic moment of a magnetized cylindrical bar is covered in most EM texts (physics) and should not be a major problem.

#### Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

#### Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

#### Resources

Low-Volume Rapid Injection Molding With 3D Printed Molds
Learn methods and guidelines for using stereolithography (SLA) 3D printed molds in the injection molding process to lower costs and lead time. Discover how this hybrid manufacturing process enables on-demand mold fabrication to quickly produce small batches of thermoplastic parts. Download Now
Examine how the principles of DfAM upend many of the long-standing rules around manufacturability - allowing engineers and designers to place a partâ€™s function at the center of their design considerations. Download Now
Taking Control of Engineering Documents
This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. Download Now

Close Box

# Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

• Talk To Other Members
• Notification Of Responses To Questions
• Favorite Forums One Click Access
• Keyword Search Of All Posts, And More...

Register now while it's still free!