Have you guys read this Steorn patent:
espacenet — Original document
Has been around for a while. If you analyze this patent then the "steorn effect" should be of no mystery. What they have "discovered" is the fact that a ferromagnetic material does not instantly react to a changing field but has a lag to it. In the solid state example this could have some big ramifications...
Imagine a coil being pulsed with a very short burst of energy. In the "usual" slow case the ferro magnetic material would quickly react to this field and will prevent the coil from changing its field so fast, and thus a longer time period will be needed to increase the field to a desired level.
However if knowledge was given to you that some ferromagnetic materials lag substantially to a changing field suddenly things change. Now the coil can burst and reach its peak current, and thus field, while the core is still sleeping so to speak. When it finally senses the change it starts to align its domain, at this stage the coil is already off, meaning the core has no more effect on the primary energizing coil. When the core has finished aligning all its domain a secondary coil can suck out all of this energy through a classic inductive discharge. So the big secret is the short burst of energy that bypasses the usual LONG charge time of a coil with a ferromagnetic core.
Experimental wise this means that one has to look for the right core that delays a strong pulse substantially by measuring instantaneous field either by a hall probe or by a a winding to two hooked to an oscilloscope. Because flux change is proportional to voltage.
espacenet — Original document
Has been around for a while. If you analyze this patent then the "steorn effect" should be of no mystery. What they have "discovered" is the fact that a ferromagnetic material does not instantly react to a changing field but has a lag to it. In the solid state example this could have some big ramifications...
Imagine a coil being pulsed with a very short burst of energy. In the "usual" slow case the ferro magnetic material would quickly react to this field and will prevent the coil from changing its field so fast, and thus a longer time period will be needed to increase the field to a desired level.
However if knowledge was given to you that some ferromagnetic materials lag substantially to a changing field suddenly things change. Now the coil can burst and reach its peak current, and thus field, while the core is still sleeping so to speak. When it finally senses the change it starts to align its domain, at this stage the coil is already off, meaning the core has no more effect on the primary energizing coil. When the core has finished aligning all its domain a secondary coil can suck out all of this energy through a classic inductive discharge. So the big secret is the short burst of energy that bypasses the usual LONG charge time of a coil with a ferromagnetic core.
Experimental wise this means that one has to look for the right core that delays a strong pulse substantially by measuring instantaneous field either by a hall probe or by a a winding to two hooked to an oscilloscope. Because flux change is proportional to voltage.
Comment