Magnetic B-H Curves

[SnappyP]

I am new to the magnetics world, but working on a solenoid and want to know what type of equipment is used to generate B-H Curves. Also, who would be a leading supplier of that equipment and the estimated cost. The solenoid requires a little more (10%) pull-in force midway through its travel and I am considering a full anneal of the armature and pole piece, but I need a baseline of the existing parts as they are today. The pole is 1018 and the armature is 12L14 Steel.

 

[dgallup]

http://www.laboratorio.elettrofisic...Analysis&sottofamiglia=SOFT MAGNETIC MATERIAL

http://www.kjsmagnetics.com/equipment.htm

 

[EdStainless]

Magnetic Instrumentation is another source

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Plymouth Tube

 

[Skogsgurra]

You do not need much to record an AC hysterisis curve. I have used a low voltage AC source (adjustable transformer) and an oscilloscope with integrating function. The TiePie HS4, for instance, has a very flexible set of "functions" that can be used for almost any measurement.

The attached picture shows measurements on a toroid made from ferrite. The saturation flux can be easily calculated from the results. As can many other properties.

Gunnar Englund

http://www.gke.org

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100 % recycled posting: Electrons, ideas, finger-tips have been used over and over again...

 

[Clyde38]

KJS Magnetics and Magnetic Istrumentation are one in the same...

Also try Walker Scientific

http://www.walkerscientific.com/

Magnet-Physik

http://www.magnet-physik.de/