描述
SDCS-IOB-23
能量可以相互轉(zhuǎn)化。只要是有別的形式的能量，通過一定的手段和設(shè)備，就是可以將其轉(zhuǎn)化為電能。比如說熱能，機(jī)械能，磁能，核能都可以轉(zhuǎn)化為電能。
物質(zhì)都是由分子組成，分子是由原子組成，原子中有帶負(fù)電的電子和帶正電荷的質(zhì)子組成。在正常狀況下，一個原子的質(zhì)子數(shù)與電子數(shù)量相同，正負(fù)平衡，所以對外表現(xiàn)出不帶電的現(xiàn)象。但是電子環(huán)繞于原子核周圍，一經(jīng)外力即脫離軌道，離開原來的原子兒而侵入其他的原子B，A原子因缺少電子數(shù)而帶有正電現(xiàn)象，稱為陽離子、B原子因增加電子數(shù)而呈帶負(fù)電現(xiàn)象，稱為陰離子。
造成不平衡電子分布的原因即是電子受外力而脫離軌道，這個外力包含各種能量(如動能、位能、熱能、化學(xué)能……等)在日常生活中，任何兩個不同材質(zhì)的物體接觸后再分離，即可產(chǎn)生靜電。
當(dāng)兩個不同的物體相互接觸時就會使得一個物體失去一些電荷如電子轉(zhuǎn)移到另一個物體使其帶正電，而另一個體得到一些剩余電子的物體而帶負(fù)電。若在分離的過程中電荷難以中和，電荷就會積累使物體帶上靜電。所以物體與其它物體接觸后分離就會帶上靜電。通常在從一個物體上剝離一張塑料薄膜時就是一種典型的“接觸分離”起電，在日常生活中脫衣服產(chǎn)生的靜電也是“接觸分離”起電。
固體、液體甚至氣體都會因接觸分離而帶上靜電。這是因為氣體也是由分子、原子組成，當(dāng)空氣流動時分子、原子也會發(fā)生“接觸分離”而起電。
我們都知道摩擦起電而很少聽說接觸起電。實質(zhì)上摩擦起電是一種接觸又分離的造成正負(fù)電荷不平衡的過程。摩擦是一個不斷接觸與分離的過程。因此摩擦起電實質(zhì)上是接觸分離起電。在日常生活，各類物體都可能由于移動或摩擦而產(chǎn)生靜電。另一種常見的起電是感應(yīng)起電。當(dāng)帶電物體接近不帶電物體時會在不帶電的導(dǎo)體的兩端分別感應(yīng)出負(fù)電和正電。其它起電方式有：熱電和壓電起電、亥姆霍茲層、噴射起電等。
產(chǎn)品承諾：
保?證?全新原裝進(jìn)口,
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主營DCS系統(tǒng)配件
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大型伺服系統(tǒng)配件
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