馳誠(cheng)電(dian)氣認為，工作中常見(jian)的(de)電(dian)(dian)(dian)(dian)化(hua)(hua)(hua)學(xue)(xue)氣(qi)體(ti)(ti)傳(chuan)感器有兩種(zhong)形式(shi)(shi)(shi)即：定電(dian)(dian)(dian)(dian)位(wei)(wei)電(dian)(dian)(dian)(dian)解(jie)式(shi)(shi)(shi)和伽伐尼電(dian)(dian)(dian)(dian)池(chi)式(shi)(shi)(shi)。定電(dian)(dian)(dian)(dian)位(wei)(wei)電(dian)(dian)(dian)(dian)解(jie)式(shi)(shi)(shi)電(dian)(dian)(dian)(dian)化(hua)(hua)(hua)學(xue)(xue)氣(qi)體(ti)(ti)傳(chuan)感的(de)基本原理(li)：在(zai)一定的(de)條件(jian)下(xia)（給(gei)定電(dian)(dian)(dian)(dian)位(wei)(wei)下(xia)）被測(ce)氣(qi)體(ti)(ti)通過(guo)透氣(qi)膜到達(da)傳(chuan)感器工(gong)作(zuo)(zuo)電(dian)(dian)(dian)(dian)極的(de)表面被氧(yang)化(hua)(hua)(hua)，產生(sheng)電(dian)(dian)(dian)(dian)子轉移(yi)引(yin)起工(gong)作(zuo)(zuo)電(dian)(dian)(dian)(dian)極電(dian)(dian)(dian)(dian)位(wei)(wei)的(de)變化(hua)(hua)(hua)，同時氧(yang)氣(qi)在(zai)對(dui)(dui)電(dian)(dian)(dian)(dian)極被還原，引(yin)起對(dui)(dui)電(dian)(dian)(dian)(dian)極電(dian)(dian)(dian)(dian)位(wei)(wei)的(de)變化(hua)(hua)(hua)，通過(guo)檢(jian)測(ce)兩電(dian)(dian)(dian)(dian)極之間(jian)電(dian)(dian)(dian)(dian)流的(de)變化(hua)(hua)(hua)可實現對(dui)(dui)氣(qi)體(ti)(ti)的(de)檢(jian)測(ce)。工(gong)作(zuo)(zuo)時參比電(dian)(dian)(dian)(dian)極提供恒(heng)電(dian)(dian)(dian)(dian)位(wei)(wei)，以保持(chi)工(gong)作(zuo)(zuo)電(dian)(dian)(dian)(dian)極穩定工(gong)作(zuo)(zuo)

主要性能：

1、靈(ling)敏度。傳感(gan)器在檢測(ce)(ce)回路中的(de)給(gei)定條件下(xia)單位濃(nong)度(du)(du)的(de)被測(ce)(ce)氣(qi)體(ti)所(suo)輸(shu)出的(de)電流。 該(gai)類傳感(gan)器在低濃(nong)度(du)(du)毒性氣(qi)體(ti)探測(ce)(ce)領域具有良(liang)好的(de)靈敏度(du)(du)。

2、選擇性。通過電位選擇及采取其(qi)它(ta)措施，該類傳感(gan)器能夠實現(xian)一定的選擇性(xing)。

3、穩定性。易受環境溫濕度的影(ying)響。

4、線性(xing)。氣體(ti)濃(nong)度和輸出信號呈(cheng)線性關系

5、壽命(ming)。與其它種(zhong)類的氣體傳感器(qi)相比具有較(jiao)短的壽命（1-2年）

6、適用領域。適用于工業、領域的毒性(xing)(xing)氣體的定性(xing)(xing)、半定量、定量檢測(ce)。

電化學式傳感器的優點是(shi)具有*的靈敏度(du)；良好的線形度(du)，不僅可(ke)定量測量并且在一(yi)定濃度(du)內(nei)可(ke)做分析儀(yi)器使用；氣(qi)體選(xuan)擇性極為出色，適合檢(jian)測毒性氣(qi)體；且其本身工作不消(xiao)耗電能。它的缺點是(shi)價格較為昂貴；宜受環境溫濕(shi)度(du)的影響。