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用(yong)途:SO-120土(tu)壤氧氣(qi)(qi)(qi)傳感(gan)(gan)器用(yong)于測量土(tu)壤中的(de)氧氣(qi)(qi)(qi)含量。可以監(jian)測土(tu)壤呼(hu)吸和(he)透(tou)氣(qi)(qi)(qi)性。傳感(gan)(gan)器包(bao)含一(yi)個鉛(qian)正極(ji)、金負(fu)極(ji)、電(dian)(dian)解液和(he)一(yi)個Teflon膜(mo)。電(dian)(dian)極(ji)間的(de)電(dian)(dian)流與測量得到的(de)氧氣(qi)(qi)(qi)濃(nong)度呈正比。一(yi)個內置的(de)橋(qiao)式(shi)電(dian)(dian)阻用(yong)于提(ti)供電(dian)(dian)壓(ya)輸(shu)出。作為電(dian)(dian)流型(xing)傳感(gan)(gan)器,需(xu)要消(xiao)耗少量氧氣(qi)(qi)(qi)以產生響(xiang)應的(de)電(dian)(dian)壓(ya)信號。當氧氣(qi)(qi)(qi)濃(nong)度是(shi)20.95% (3240 mmol,23℃) 的(de)時候,測量得到的(de)氧氣(qi)(qi)(qi)消(xiao)耗是(shi)2.2u mol/天(tian)