B-field

[RobN]

I am working on several types of coils for a PI detector, And reading through your alls wonderful book on the chapters for PI detectors it states that the greater number of windings for a given transmit current produces a stronger B-Field but, in practice more windings have a higher resistance and etc. etc. etc. Not going to reprint the book on here.
My question is what is a B-field? Did I miss something somewhere?
I get the more windings the more depth but also more resistance, capacitance and inductance which slow it down. I guess I don’t get what the B-Field is. (Page 146) sorry for my ignorance.
Can somebody help on what a B-Field is? Thanks all, your the best.

[WM6]

http://www.physics.usyd.edu.au/teach...od6/m6Flux.pdf

[Qiaozhi]

B = induced magnetic flux density
H = magnetizing force
If you plot B against H, you get the so-called B-H curve. This curve can tell you a lot about the magnetic properties of a material.

Note 6 (at the bottom of page 146) states that the induced magnetic flux density (the B field) is proportional to the number of windings. i.e. more windings, more induced magnetic field. But (as it says) there's no free lunch.

[RobN]

Oh ok I get it, B=Mag flux. Somehow It was just not soaking in my head, trying to make it more complicated than it was I guess. Thanks all for clearing that up.