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VOCS揮發性有機物(wu)在線報警系統 揮發性有機物(wu)的(de)(de)電(dian)(dian)(dian)(dian)離(li)電(dian)(dian)(dian)(dian)位（IP）小于紫(zi)外(wai)(wai)燈能(neng)量的(de)(de)化(hua)合(he)物(wu)氣(qi)體(ti)或蒸(zheng)汽通(tong)過離(li)子化(hua)腔(qiang)時，PID 的(de)(de)紫(zi)外(wai)(wai)光源（UV）就會將改化(hua)合(he)物(wu)擊碎成(cheng)可被(bei)檢(jian)測到(dao)的(de)(de)正負離(li)子（該過程即(ji)離(li)子化(hua)），檢(jian)測器(qi)測量離(li)子化(hua)后(hou)的(de)(de)氣(qi)體(ti)電(dian)(dian)(dian)(dian)荷并將其(qi)轉化(hua)為(wei)電(dian)(dian)(dian)(dian)流信(xin)號， 然后(hou)電(dian)(dian)(dian)(dian)流被(bei)放大并轉化(hua)為(wei)濃度值，再被(bei)檢(jian)測后(hou)，離(li)子重新復合(he)成(cheng)原來的(de)(de)氣(qi)體(ti)或蒸(zheng)汽，是一(yi)種無損檢(jian)測 VOC 方法。