Sentences with phrase «ferromagnetic poles»
EPMs are a magnetic assembly consisting of two permanent magnets (one hard — very difficult to demagnetize, one soft — easy to demagnetize), two ferromagnetic poles, and a coil.
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By using thin (350 μm) ferromagnetic poles, localized actuation regions can be achieved within the microfluidic channels.
Not exact matches
Yet, despite their widespread use, at room temperature only three elements are ferromagnetic — meaning they have high susceptibility to becoming and remaining magnetic in the absence of a field, as opposed to paramagnetic substances, which are only weakly attracted to the poles of a magnet and do not retain any magnetism on their own.