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

[gravityblock]

Well, at least I lack some understanding what exactly is the difference B-H and M-H curves.
I guess that counts for most of the readers here.

The ferromagnetic hysteresis M-H loop shows the effect of the magnetic field on inductance or magnetization. "M" is called the magnetization of the material.  "H" is the magnetic field strength (Oe or A/m).  "B" is the magnetic flux density or mag. induction (Gauss or Tesla).

Here's a good reference explaining and showing the differences in a PDF file, http://www.overunity.com/index.php?action=downloads;sa=downfile&id=373  You're interested only in the first 6 pages of the pdf file.  The rest of the file can be ignored, unless you want additional information that is more than likely outside of this topic.  If you need more references, then please let me know.

GB

[teslaalset]

The ferromagnetic hysteresis M-H loop shows the effect of the magnetic field on inductance or magnetization. "M" is called the magnetization of the material.  "H" is the magnetic field strength (Oe or A/m).  "B" is the magnetic flux density or mag. induction (Gauss or Tesla).

Here's a good reference explaining and showing the differences in a PDF file, http://www.overunity.com/index.php?action=downloads;sa=downfile&id=373  You're interested only in the first 6 pages of the pdf file.  The rest of the file can be ignored, unless you want additional information that is more than likely outside of this topic.  If you need more references, then please let me know.

GB

Thanks GB.
I'll study those.

[PaulLowrance]

Current draw is irrelevant? Isn't that what the meter is showing?

In the Orbo the current pulse is a square, at least according to Sean. Nearly all of the current pulse is therefore resistive (wire and transistor resistance). So indeed, the battery voltage is fixed, and the resistance is fixed. So I predict that the current draw in Naudin's setup will by a very small amount.

[Jimboot]

@paullowrance what was the metglas serial in your miniorbo? I have one type of non-sq & square.

[happyfunball]

In the Orbo the current pulse is a square, at least according to Sean. Nearly all of the current pulse is therefore resistive (wire and transistor resistance). So indeed, the battery voltage is fixed, and the resistance is fixed. So I predict that the current draw in Naudin's setup will by a very small amount.

Seems plausible