WSS溫度(du)(du)(du)計(ji)是一種適合(he)測(ce)(ce)量中、低溫的現場檢測(ce)(ce)儀表，可以直接測(ce)(ce)量各種生產過程(cheng)中的-80℃-+500℃范圍(wei)內液體蒸汽和(he)氣體介質(zhi)溫度(du)(du)(du)。該溫度(du)(du)(du)計(ji)從設(she)計(ji)原理及結構上具有防水(shui)、防腐蝕、耐(nai)震動(dong)、直觀、易讀數(shu)、無汞害、堅固耐(nai)用等特點，雙(shuang)金屬溫度(du)(du)(du)計(ji)能(neng)在工(gong)作溫度(du)(du)(du)超(chao)過給定值時，自動(dong)發(fa)出控制(zhi)信號切斷電源或報警。可取代其它形工(gong)的測(ce)(ce)溫儀表，廣泛應用于石油(you)、化工(gong)、機械、船(chuan)舶、發(fa)電、紡織(zhi)、印染等工(gong)業和(he)科研部門。

　　WSS溫度(du)計應用和(he)結構（雙(shuang)金屬(shu)溫度(du)計特點(dian)）:

　　無汞(gong)害，易(yi)讀(du)數，堅(jian)固耐(nai)震。

　　保(bao)護管材為1Gr18Ni9Ti不銹(xiu)鋼(gang)和(he)鉬二鈦，承壓、防腐能力(li)強。

　　抽芯式溫度(du)計(ji)可不停機短(duan)時間維護或更換機芯。

　　軸(zhou)向(xiang)(xiang)(xiang)型(xing)(xing)(xing)、徑向(xiang)(xiang)(xiang)型(xing)(xing)(xing)、135o型(xing)(xing)(xing)、萬向(xiang)(xiang)(xiang)型(xing)(xing)(xing)等(deng)品(pin)種齊全，雙(shuang)(shuang)金屬(shu)(shu)溫(wen)(wen)(wen)(wen)(wen)(wen)度(du)(du)計適應于各種現場安(an)裝(zhuang)的(de)(de)需(xu)要。 WSS系列溫(wen)(wen)(wen)(wen)(wen)(wen)度(du)(du)計特征(zheng)與(yu)工作(zuo)原理: WSS系列溫(wen)(wen)(wen)(wen)(wen)(wen)度(du)(du)計是用繞成螺紋(wen)旋形的(de)(de)熱雙(shuang)(shuang)金屬(shu)(shu)片(pian)作(zuo)感(gan)溫(wen)(wen)(wen)(wen)(wen)(wen)元(yuan)件(jian)(jian)，并將它裝(zhuang)在保護套內，一端(duan)固(gu)定（固(gu)定端(duan)），另(ling)一端(duan)（自(zi)由(you)(you)端(duan)）連接(jie)在一根細軸(zhou)上(shang)，軸(zhou)端(duan)裝(zhuang)有(you)指(zhi)針(zhen)。當溫(wen)(wen)(wen)(wen)(wen)(wen)度(du)(du)發生變(bian)化(hua)時(shi)，感(gan)溫(wen)(wen)(wen)(wen)(wen)(wen)元(yuan)件(jian)(jian)的(de)(de)自(zi)由(you)(you)端(duan)隨即轉(zhuan)動(dong)，從而(er)細軸(zhou)帶動(dong)指(zhi)針(zhen)產生角(jiao)位移(yi)，在標度(du)(du)盤(pan)上(shang)指(zhi)示(shi)(shi)出(chu)溫(wen)(wen)(wen)(wen)(wen)(wen)度(du)(du)的(de)(de)變(bian)化(hua)；直型(xing)(xing)(xing)表則通過(guo)轉(zhuan)向(xiang)(xiang)(xiang)傳動(dong)機構(gou)帶動(dong)指(zhi)針(zhen)。由(you)(you)于感(gan)溫(wen)(wen)(wen)(wen)(wen)(wen)元(yuan)件(jian)(jian)與(yu)溫(wen)(wen)(wen)(wen)(wen)(wen)度(du)(du)變(bian)化(hua)呈線性關系，所以雙(shuang)(shuang)金屬(shu)(shu)溫(wen)(wen)(wen)(wen)(wen)(wen)度(du)(du)計指(zhi)針(zhen)所指(zhi)示(shi)(shi)的(de)(de)位置即是被測溫(wen)(wen)(wen)(wen)(wen)(wen)度(du)(du)值。表殼材料(liao)有(you)鋼(gang)(gang)板(ban)(ban)、鑄合金、不銹鋼(gang)(gang)板(ban)(ban)；檢測元(yuan)件(jian)(jian)還具有(you)抽芯式(shi)結(jie)構(gou)；可(ke)調角(jiao)型(xing)(xing)(xing)溫(wen)(wen)(wen)(wen)(wen)(wen)度(du)(du)計的(de)(de)表頭部分借助于波(bo)紋(wen)管，轉(zhuan)角(jiao)機構(gou)等(deng)零件(jian)(jian)，可(ke)以由(you)(you)角(jiao)型(xing)(xing)(xing)到直型(xing)(xing)(xing)或(huo)從直型(xing)(xing)(xing)到角(jiao)型(xing)(xing)(xing)任意角(jiao)度(du)(du)轉(zhuan)變(bian)。電接(jie)點雙(shuang)(shuang)金屬(shu)(shu)溫(wen)(wen)(wen)(wen)(wen)(wen)度(du)(du)計則在結(jie)構(gou)上(shang)增添了電接(jie)觸(chu)組、調節裝(zhuang)置和出(chu)線盒等(deng)部件(jian)(jian)。在溫(wen)(wen)(wen)(wen)(wen)(wen)度(du)(du)變(bian)化(hua)時(shi)，當與(yu)預先設定的(de)(de)控溫(wen)(wen)(wen)(wen)(wen)(wen)定觸(chu)點（上(shang)限與(yu)下(xia)限）相(xiang)接(jie)觸(chu)或(huo)斷(duan)開的(de)(de)瞬間，使控制線路中的(de)(de)繼電器(qi)或(huo)接(jie)觸(chu)器(qi)動(dong)作(zuo)，雙(shuang)(shuang)金屬(shu)(shu)溫(wen)(wen)(wen)(wen)(wen)(wen)度(du)(du)計從而(er)實現自(zi)動(dong)控溫(wen)(wen)(wen)(wen)(wen)(wen)或(huo)報(bao)警的(de)(de)功能。

　　WSS溫(wen)(wen)(wen)(wen)度(du)(du)(du)(du)計(ji)是利用(yong)兩種(zhong)不(bu)同(tong)金(jin)屬(shu)(shu)(shu)在(zai)(zai)溫(wen)(wen)(wen)(wen)度(du)(du)(du)(du)改(gai)變(bian)(bian)時(shi)膨脹(zhang)程度(du)(du)(du)(du)不(bu)同(tong)的原理(li)工作的。工業用(yong)WSS系列(lie)溫(wen)(wen)(wen)(wen)度(du)(du)(du)(du)計(ji)主要的元件是一(yi)(yi)(yi)個用(yong)兩種(zhong)或多(duo)種(zhong)金(jin)屬(shu)(shu)(shu)片(pian)(pian)(pian)疊(die)壓在(zai)(zai)一(yi)(yi)(yi)起組成的多(duo)層金(jin)屬(shu)(shu)(shu)片(pian)(pian)(pian)。為提高測(ce)溫(wen)(wen)(wen)(wen)靈敏度(du)(du)(du)(du)，通常(chang)將金(jin)屬(shu)(shu)(shu)片(pian)(pian)(pian)制成螺旋(xuan)卷(juan)形狀。當多(duo)層金(jin)屬(shu)(shu)(shu)片(pian)(pian)(pian)的溫(wen)(wen)(wen)(wen)度(du)(du)(du)(du)改(gai)變(bian)(bian)時(shi)，各(ge)層金(jin)屬(shu)(shu)(shu)膨脹(zhang)或收縮(suo)量不(bu)等，使得螺旋(xuan)卷(juan)卷(juan)起或松(song)開。由(you)于螺旋(xuan)卷(juan)的一(yi)(yi)(yi)端(duan)固定而另一(yi)(yi)(yi)端(duan)和一(yi)(yi)(yi)可以自由(you)轉動的指(zhi)(zhi)針(zhen)(zhen)相連，因此(ci)，當雙金(jin)屬(shu)(shu)(shu)片(pian)(pian)(pian)感受(shou)到溫(wen)(wen)(wen)(wen)度(du)(du)(du)(du)變(bian)(bian)化時(shi)，指(zhi)(zhi)針(zhen)(zhen)即(ji)可在(zai)(zai)一(yi)(yi)(yi)圓形分度(du)(du)(du)(du)標尺上指(zhi)(zhi)示出溫(wen)(wen)(wen)(wen)度(du)(du)(du)(du)來。這種(zhong)雙金(jin)屬(shu)(shu)(shu)溫(wen)(wen)(wen)(wen)度(du)(du)(du)(du)計(ji)儀(yi)表(biao)的測(ce)溫(wen)(wen)(wen)(wen)范圍是200~650℃，允許誤(wu)差均為標尺兩程的1%左右。這種(zhong)溫(wen)(wen)(wen)(wen)度(du)(du)(du)(du)計(ji)和棒狀的玻璃液體溫(wen)(wen)(wen)(wen)度(du)(du)(du)(du)計(ji)的用(yong)途相似，但可使用(yong)在(zai)(zai)機械強度(du)(du)(du)(du)要求更高的條(tiao)件下。