銅康銅熱電偶

銅-康銅熱電偶以其靈敏度高、穩定可靠、抗震抗摔、互換性好、價格低廉、適用於遠距離測溫和自動控制等優勢，在農業和製冷工程中發揮著重要作用。

基本介紹

• 中文名：銅康銅熱電偶
• 外文名：Copper thermocouple
• 屬性：冶金術語
• 相關：農業、製冷工程
• 分類：電偶

基本信息

通過選擇銅-康銅熱電偶的製作方法和標定方式,進行多項式回歸分析,表明熱鍍錫焊測頭非標準分度的銅-康銅熱電偶在-35～100℃範圍內的線性及一致性都較好,適於實驗室、農業和製冷工程測溫套用。

熱電偶高清圖片

熱電偶電路示意圖：

銅—康銅熱電偶分度表:

熱電偶電路示意圖

基本參數

溫度℃	0	1	2	3	4	5	6	7	8	9
熱 電 動 勢 mV
-40; -30; -20; -10; 0-; 0+; 10; 20; 30; 40; 50; 60; 70; 80; 90; 100; 110; 120; 130; 140; 150; 160; 170; 180; 190; 200; 210; 220; 230; 240	-1.475; -1.121; -0.757; -0.383; -0.000; 0.000; 0.391; 0.789; 1.196; 1.611; 2.035; 2.467; 2.908; 3.357; 3.813; 4.277; 4.749; 5.227; 5.712; 6.204; 6.702; 7.207; 7.718; 8.235; 8.757; 9.286; 9.820; 10.360; 10.905; 11.450	-1.510; -1.157; -0.794; -0.421; -0.039; 0.039; 0.430; 0.830; 1.237; 1.653; 2.078; 2.511; 2.953; 3.402; 3.859; 4.324; 4.796; 5.275; 5.761; 6.254; 6.753; 7.258; 7.769; 8.287; 8.810; 9.339; 9.874; 10.414; 10.960; 11.511	-1.544; -1.192; -0.830; -0.458; -0.077; 0.078; 0.470; 0.870; 1.279; 1.695; 2.121; 2.555; 2.997; 3.447; 3.906; 4.371; 4.844; 5.324; 5.810; 6.303; 6.803; 7.309; 7.821; 8.339; 8.863; 9.392; 9.928; 10.469; 11.015; 11.566	-1.579; -1.228; -0.867; -0.495; -0.116; 0.117; 0.510; 0.911; 1.320; 1.738; 2.164; 2.599; 3.042; 3.493; 3.952; 4.418; 4.891; 5.372; 5.859; 6.353; 6.853; 7.360; 7.872; 8.391; 8.915; 9.446; 9.982; 10.523; 11.070; 11.622	-1.614; -1.263; -0.903; -0.534; -0.154; 0.156; 0.549; 0.951; 1.361; 1.780; 2.207; 2.643; 3.087; 3.538; 3.998; 4.465; 4.939; 5.420; 5.908; 6.403; 6.903; 7.411; 7.924; 8.443; 8.968; 9.499; 10.036; 10.578; 11.128; 11.677	-1.648; -1.299; -0.904; -0.571; -0.193; 0.195; 0.589; 0.992; 1.403; 1.822; 2.250; 2.687; 3.131; 3.584; 4.044; 4.512; 4.987; 5.469; 5.957; 6.452; 6.954; 7.462; 7.975; 8.495; 9.021; 9.553; 10.090; 10.632; 11.180; 11.733	-1.682; -1.334; -0.976; -0.602; -0.231; 0.234; 0.629; 1.032; 1.444; 1.865; 2.294; 2.731; 3.176; 3.630; 4.091; 4.559; 5.035; 5.517; 6.007; 6.502; 7.004; 7.513; 8.027; 8.548; 9.074; 9.606; 10.144; 10.687; 11.235; 11.788	-1.717; -1.370; -1.013; -0.646; -0.269; 0.273; 0.669; 1.073; 1.486; 1.907; 2.337; 2.775; 3.221; 3.676; 4.137; 4.607; 5.083; 5.566; 6.056; 6.552; 7.055; 7.564; 8.079; 8.600; 9.127; 9.659; 10.198; 10.741; 11.290; 11.844	-1.751; -1.405; -1.049; -0.683; -0.307; 0.312; 0.709; 1.114; 1.528; 1.950; 2.380; 2.819; 3.266; 3.721; 4.184; 4.654; 5.131; 5.615; 6.105; 6.602; 7.106; 7.615; 8.131; 8.652; 9.180; 9.713; 10.252; 10.796; 11.345; 11.900	-1.785; -1.440; -1.085; -0.720; -0.345; 0.351; 0.749; 1.155; 1.569; 1.992; 2.424; 2.864; 3.312; 3.767; 4..231; 4.701; 5.179; 5.663; 6.155; 6.652; 7.150; 7.660; 8.183; 8.705; 9.233; 9.767; 10.306; 10.851; 11.401; 11.956

相關研究

隨著科學技術的發展,低溫領域已為越來越多的工業生產、軍事工程及理論研究所占據,所以低溫測量的重要性日益增加,對於低溫測量元件的要求和精度日趨提高。

國際上低溫工程領域中常採用的熱電偶材料有銅或鐵對康銅,金鈷對中性銀或銅。近年來金鐵合金對鎳鉻,熱電偶在10K以上具有較大靈敏度,已引起世界各國重視,另外還有鎳鉻對鎳鋁(或考銅)等熱電偶材料,根據其各有的優點和缺點,分別選用於不同的場合和溫度範圍。銅—康銅熱電偶不但能滿足測量低溫的要求,較之上述熱電偶具有使用方便。

溫升是電器產品的一個重要技術參數。開發研製任何一個電器產品離不開溫升設計和溫升試驗,除了線圈一類元件或零部件用電阻法測量溫升外,其它如觸頭、連線板、進、出線端等一般都是用銅——康銅熱電偶測量溫升,把所測得的熱電勢值,熱電偶冷端溫度值與熱電偶的微伏值——溫度對照表(以下簡稱對照表)反覆對照計算,方可求得溫升值,每一個測得值都必須同樣反覆對照計算。