How to measure core saturation

[sucahyo]

Is there an easy way to measure core saturation? This seems to be the important factor of magnetic motor or coil COP, according to Dr Harold Aspden

http://www.newenergytimes.com/v2/arc.../N/N199612.PDF

Areas a and c are energy inputs from the magnetizing winding, whereas c and d are energy inputs that electrical engineers never consider, because that energy is supplied by the aether.

If you run the motor over the lower flux density range, which is normal, then you operate at an efficiency which can not exceed (a+b)/2a, which is 100%. On the other hand, if the motor operates over the higher range, the efficiency can reach up to (c+d)/2c, which is very much higher than 100%.

Consider some realistic figures by putting the knee in the curve at 15,000 gauss and assuming that the incremental B/H ratio is 1000 over the lower range but only 50 over the upper range. Operate the stator core of the motor up to a B value of 20,000H ranges from 15 to 115 over this upper range. Work out the area c as being (15_115)x5000/2 or 325,000 and the area d as being (15,000 + 20,000) x 100/2 or 1,750,000. You will then see the operation close to 319% efficiency is indicated.

Am I right to assume that to get the best gain we need to:
- Turn off power H when the magnet B almost saturated / linier.
- let the magnetic field B reach half it's saturated state, not too soon, not too late.
- turn the power again until almost saturated
- repeat

No idea how we know the saturation level of the magnet though...

[sucahyo]

Can we use this?
We compare output relate to input.

[AhuraMazda]

There are numerous ways you can detect saturation or near saturation state of the core. It all depebds on what you are trying to do.

Have a look at Flyback Converters for Dummies aroun half way.
I read somewhere that a core continously operating near its saturation gets very hot but this comment is only someone elses point and may not be true.

Basically by monitoring the current in the energising coil you know where you are on the curve.

[sucahyo]

I see. thanks for the link too .

As for very hot core, I think COP>17 circuit need it.

[sucahyo]

I found another interesting info from the link that AhuraMazda post.

Since most ferrites have a very high permeability, already small currents can result in a high magnetic flux. As a result the ferrite will saturate at a current which is not practical for power conversion applications

I think this show the primary difference of air core with iron core. If a core saturate more easily, then the aether gain region is smaller. I think if we use air core, and we will have more aether area gain.

Maybe this explain why my self oscillated air core coil have better output than my 555 controlled car coil/transformer.

[boguslaw]

How can I compute core saturation ? I mean : how to compute what current and how long should be passed via coil to saturate core ?
I know that it may be complicated but are there any equations ?

[sucahyo]

How can I compute core saturation ? I mean : how to compute what current and how long should be passed via coil to saturate core ?
I know that it may be complicated but are there any equations ?

I would like to know it too. But it seems using a scope is easier:
How to calculate Saturation current of a torroid?

The core manufacturere data provide formula to count saturation.

The closest answer is this:
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