S、R、B、N、K、E、J、T等几种分度号热电偶各自具备哪些特点？ 热电偶和测温仪表"分度号"是什么意思?
K\uff0cE\uff0cJ\uff0cT\u7b49\u51e0\u79cd\u5206\u5ea6\u53f7\u70ed\u7535\u5076\u5404\u81ea\u5177\u5907\u54ea\u4e9b\u7279\u70b9\u70ed\u7535\u5076\u7684\u79cd\u7c7b\uff1a
\u3000\u3000\u5e38\u7528\u70ed\u7535\u5076\u53ef\u5206\u4e3a\u6807\u51c6\u70ed\u7535\u5076\u548c\u975e\u6807\u51c6\u70ed\u7535\u5076\u4e24\u5927\u7c7b\u3002
\u3000\u3000\u6240\u8c13\u6807\u51c6\u70ed\u7535\u5076\u662f\u6307\u56fd\u5bb6\u6807\u51c6\u89c4\u5b9a\u4e86\u5176\u70ed\u7535\u52bf\u4e0e\u6e29\u5ea6\u7684\u5173\u7cfb\u3001\u5141\u8bb8\u8bef\u5dee\u3001\u5e76\u6709\u7edf\u4e00\u7684\u6807\u51c6\u5206\u5ea6\u8868\u7684\u70ed\u7535\u5076\uff0c\u5b83\u6709\u4e0e\u5176\u914d\u5957\u7684\u663e\u793a\u4eea\u8868\u53ef\u4f9b\u9009\u7528\u3002
\u3000\u3000\u975e\u6807\u51c6\u70ed\u7535\u5076\u5728\u4f7f\u7528\u8303\u56f4\u6216\u6570\u91cf\u7ea7\u4e0a\u5747\u4e0d\u53ca\u6807\u51c6\u5316\u70ed\u7535\u5076\uff0c\u4e00\u822c\u4e5f\u6ca1\u6709\u7edf\u4e00\u7684\u5206\u5ea6\u8868\uff0c\u4e3b\u8981\u7528\u4e8e\u67d0\u4e9b\u7279\u6b8a\u573a\u5408\u7684\u6d4b\u91cf\u3002
\u3000\u3000\u6807\u51c6\u70ed\u7535\u5076\u6211\u56fd\u4ece1988\u5e741\u67081\u65e5\u8d77\uff0c\u70ed\u7535\u5076\u548c\u70ed\u7535\u963b\u5168\u90e8\u6309IEC\u56fd\u9645\u6807\u51c6\u751f\u4ea7\uff0c\u5e76\u6307\u5b9aS\u3001B\u3001E\u3001K\u3001R\u3001J\u3001T\u4e03\u79cd\u6807\u51c6\u5316\u70ed\u7535\u5076\u4e3a\u6211\u56fd\u7edf\u4e00\u8bbe\u8ba1\u578b\u70ed\u7535\u5076\u3002
\u3000
S\u578b\u70ed\u7535\u5076\uff08\u94c2\u94d110-\u94c2\u70ed\u7535\u5076\uff09
\u3000\u3000S\u578b\u70ed\u7535\u5076\uff08\u94c2\u94d110-\u94c2\u70ed\u7535\u5076\uff09\u4e3a\u8d35\u91d1\u5c5e\u70ed\u7535\u5076\u3002\u5076\u4e1d\u76f4\u5f84\u89c4\u5b9a\u4e3a0.5mm\uff0c\u5141\u8bb8\u504f\u5dee-0.015mm
\u3000\u3000S\u578b\u70ed\u7535\u5076\u5176\u6b63\u6781\uff08SP\uff09\u7684\u540d\u4e49\u5316\u5b66\u6210\u5206\u4e3a\u94c2\u94d1\u5408\u91d1\uff0c\u5176\u4e2d\u542b\u94d1\u4e3a10%\uff0c\u542b\u94c2\u4e3a90%\uff0c\u8d1f\u6781\uff08SN\uff09\u4e3a\u7eaf\u94c2\uff0c\u6545\u4fd7\u79f0\u5355\u94c2\u94d1\u70ed\u7535\u5076\u3002
\u3000\u3000S\u578b\u70ed\u7535\u5076\u957f\u671f\u6700\u9ad8\u4f7f\u7528\u6e29\u5ea6\u4e3a1300\u2103\uff0c\u77ed\u671f\u6700\u9ad8\u4f7f\u7528\u6e29\u5ea6\u4e3a1600\u2103\u3002
\u3000\u3000S\u578b\u70ed\u7535\u5076\u5728\u70ed\u7535\u5076\u7cfb\u5217\u4e2d\u5177\u6709\u51c6\u786e\u5ea6\u6700\u9ad8\uff0c\u7a33\u5b9a\u6027\u6700\u597d\uff0c\u6d4b\u6e29\u6e29\u533a\u5bbd\uff0c\u4f7f\u7528\u5bff\u547d\u957f\u7b49\u4f18\u70b9\u3002\u5b83\u7684\u7269\u7406\uff0c\u5316\u5b66\u6027\u80fd\u826f\u597d\uff0c\u70ed\u7535\u52bf\u7a33\u5b9a\u6027\u53ca\u5728\u9ad8\u6e29\u4e0b\u6297\u6c27\u5316\u6027\u80fd\u597d\uff0c\u9002\u7528\u4e8e\u6c27\u5316\u6027\u548c\u60f0\u6027\u6c14\u6c1b\u4e2d\u3002
\u3000\u3000\u7531\u4e8eS\u578b\u70ed\u7535\u5076\u5177\u6709\u4f18\u826f\u7684\u7efc\u5408\u6027\u80fd\uff0c\u7b26\u5408\u56fd\u9645\u4f7f\u7528\u6e29\u6807\u7684S\u578b\u70ed\u7535\u5076\uff0c\u957f\u671f\u4ee5\u6765\u66fe\u4f5c\u4e3a\u56fd\u9645\u6e29\u6807\u7684\u5185\u63d2\u4eea\u5668\uff0c\u201cITS-90\u201d\u867d\u89c4\u5b9a\u4eca\u540e\u4e0d\u518d\u4f5c\u4e3a\u56fd\u9645\u6e29\u6807\u7684\u5185\u63d2\u4eea\u5668\uff0c\u4f46\u56fd\u9645\u6e29\u5ea6\u54a8\u8be2\u59d4\u5458\u4f1a\uff08CCT\uff09\u8ba4\u4e3aS\u578b\u70ed\u7535\u5076\u4ecd\u53ef\u7528\u4e8e\u8fd1\u4f3c\u5b9e\u73b0\u56fd\u9645\u6e29\u6807\u3002
\u3000\u3000S\u578b\u70ed\u7535\u5076\u4e0d\u8db3\u4e4b\u5904\u662f\u70ed\u7535\u52bf\u7387\u8f83\u5c0f\uff0c\u7075\u654f\u5ea6\u4f4e\uff0c\u9ad8\u6e29\u4e0b\u673a\u68b0\u5f3a\u5ea6\u4e0b\u964d\uff0c\u5bf9\u6c61\u67d3\u975e\u5e38\u654f\u611f\uff0c\u8d35\u91d1\u5c5e\u6750\u6599\u6602\u8d35\u3002
R\u578b\u70ed\u7535\u5076\uff08\u94c2\u94d113-\u94c2\u70ed\u7535\u5076\uff09
\u3000\u3000R\u578b\u70ed\u7535\u5076\uff08\u94c2\u94d113-\u94c2\u70ed\u7535\u5076\uff09\u4e3a\u8d35\u91d1\u5c5e\u70ed\u7535\u5076\u3002\u5076\u4e1d\u76f4\u5f84\u89c4\u5b9a\u4e3a0.5mm\uff0c\u5141\u8bb8\u504f\u5dee-0.015mm\u3002
\u3000\u3000R\u578b\u70ed\u7535\u5076\u6b63\u6781\uff08RP\uff09\u7684\u540d\u4e49\u5316\u5b66\u6210\u5206\u4e3a\u94c2\u94d1\u5408\u91d1\uff0c\u5176\u4e2d\u542b\u94d1\u4e3a13%\uff0c\u542b\u94c2\u4e3a87%\uff0c\u8d1f\u6781\uff08RN\uff09\u4e3a\u7eaf\u94c2\u3002
\u3000\u3000R\u578b\u70ed\u7535\u5076\u957f\u671f\u6700\u9ad8\u4f7f\u7528\u6e29\u5ea6\u4e3a1300\u2103\uff0c\u77ed\u671f\u6700\u9ad8\u4f7f\u7528\u6e29\u5ea6\u4e3a1600\u2103\u3002
\u3000\u3000R\u578b\u70ed\u7535\u5076\u5728\u70ed\u7535\u5076\u7cfb\u5217\u4e2d\u5177\u6709\u51c6\u786e\u5ea6\u6700\u9ad8\uff0c\u7a33\u5b9a\u6027\u6700\u597d\uff0c\u6d4b\u6e29\u6e29\u533a\u5bbd\uff0c\u4f7f\u7528\u5bff\u547d\u957f\u7b49\u4f18\u70b9\u3002\u5176\u7269\u7406\uff0c\u5316\u5b66\u6027\u80fd\u826f\u597d\uff0c\u70ed\u7535\u52bf\u7a33\u5b9a\u6027\u53ca\u5728\u9ad8\u6e29\u4e0b\u6297\u6c27\u5316\u6027\u80fd\u597d\uff0c\u9002\u7528\u4e8e\u6c27\u5316\u6027\u548c\u60f0\u6027\u6c14\u6c1b\u4e2d\u3002
\u3000\u3000\u7531\u4e8eR\u578b\u70ed\u7535\u5076\u7684\u7efc\u5408\u6027\u80fd\u4e0eS\u578b\u70ed\u7535\u5076\u76f8\u5f53\uff0c\u5728\u6211\u56fd\u4e00\u76f4\u96be\u4e8e\u63a8\u5e7f\uff0c\u9664\u5728\u8fdb\u53e3\u8bbe\u5907\u4e0a\u7684\u6d4b\u6e29\u6709\u6240\u5e94\u7528\u5916\uff0c\u56fd\u5185\u6d4b\u6e29\u5f88\u5c11\u91c7\u7528\u30021967\u5e74\u81f31971\u5e74\u95f4\uff0c\u82f1\u56fdNPL\uff0c\u7f8e\u56fdNBS\u548c\u52a0\u62ff\u5927NRC\u4e09\u5927\u7814\u7a76\u673a\u6784\u8fdb\u884c\u4e86\u4e00\u9879\u5408\u4f5c\u7814\u7a76\uff0c\u5176\u7ed3\u679c\u8868\u660e\uff0cR\u578b\u70ed\u7535\u5076\u7684\u7a33\u5b9a\u6027\u548c\u590d\u73b0\u6027\u6bd4S\u578b\u70ed\u7535\u5076\u5747\u597d\uff0c\u6211\u56fd\u76ee\u524d\u5c1a\u672a\u5f00\u5c55\u8fd9\u65b9\u9762\u7684\u7814\u7a76\u3002
\u3000\u3000R\u578b\u70ed\u7535\u5076\u4e0d\u8db3\u4e4b\u5904\u662f\u70ed\u7535\u52bf\u7387\u8f83\u5c0f\uff0c\u7075\u654f\u5ea6\u4f4e\uff0c\u9ad8\u6e29\u4e0b\u673a\u68b0\u5f3a\u5ea6\u4e0b\u964d\uff0c\u5bf9\u6c61\u67d3\u975e\u5e38\u654f\u611f\uff0c\u8d35\u91d1\u5c5e\u6750\u6599\u6602\u8d35\u3002
B\u578b\u70ed\u7535\u5076\uff08\u94c2\u94d130-\u94c2\u94d16\u70ed\u7535\u5076\uff09
\u3000\u3000B\u578b\u70ed\u7535\u5076\uff08\u94c2\u94d130-\u94c2\u94d16\u70ed\u7535\u5076\uff09\u4e3a\u8d35\u91d1\u5c5e\u70ed\u7535\u5076\u3002\u5076\u4e1d\u76f4\u5f84\u89c4\u5b9a\u4e3a0.5mm\uff0c\u5141\u8bb8\u504f\u5dee-0.015mm\u3002
\u3000\u3000B\u578b\u70ed\u7535\u5076\u6b63\u6781\uff08BP\uff09\u7684\u540d\u4e49\u5316\u5b66\u6210\u5206\u4e3a\u94c2\u94d1\u5408\u91d1\uff0c\u5176\u4e2d\u542b\u94d1\u4e3a30%\uff0c\u542b\u94c2\u4e3a70%\uff0c\u8d1f\u6781\uff08BN\uff09\u4e3a\u94c2\u94d1\u5408\u91d1\uff0c\u542b\u94d1\u4e3a\u91cf6%\uff0c\u6545\u4fd7\u79f0\u53cc\u94c2\u94d1\u70ed\u7535\u5076\u3002
\u3000\u3000B\u578b\u70ed\u7535\u5076\u957f\u671f\u6700\u9ad8\u4f7f\u7528\u6e29\u5ea6\u4e3a1600\u2103\uff0c\u77ed\u671f\u6700\u9ad8\u4f7f\u7528\u6e29\u5ea6\u4e3a1800\u2103\u3002
\u3000\u3000B\u578b\u70ed\u7535\u5076\u5728\u70ed\u7535\u5076\u7cfb\u5217\u4e2d\u5177\u6709\u51c6\u786e\u5ea6\u6700\u9ad8\uff0c\u7a33\u5b9a\u6027\u6700\u597d\uff0c\u6d4b\u6e29\u6e29\u533a\u5bbd\uff0c\u4f7f\u7528\u5bff\u547d\u957f\uff0c\u6d4b\u6e29\u4e0a\u9650\u9ad8\u7b49\u4f18\u70b9\u3002\u9002\u7528\u4e8e\u6c27\u5316\u6027\u548c\u60f0\u6027\u6c14\u6c1b\u4e2d\uff0c\u4e5f\u53ef\u77ed\u671f\u7528\u4e8e\u771f\u7a7a\u4e2d\uff0c\u4f46\u4e0d\u9002\u7528\u4e8e\u8fd8\u539f\u6027\u6c14\u6c1b\u6216\u542b\u6709\u91d1\u5c5e\u6216\u975e\u91d1\u5c5e\u84b8\u6c14\u6c14\u6c1b\u4e2d\u3002
\u3000\u3000B\u578b\u70ed\u7535\u5076\u4e00\u4e2a\u660e\u663e\u7684\u4f18\u70b9\u662f\u4e0d\u9700\u7528\u8865\u507f\u5bfc\u7ebf\u8fdb\u884c\u8865\u507f\uff0c\u56e0\u4e3a\u57280~50\u2103\u8303\u56f4\u5185\u70ed\u7535\u52bf\u5c0f\u4e8e3\u03bcV\u3002
\u3000\u3000B\u578b\u70ed\u7535\u5076\u4e0d\u8db3\u4e4b\u5904\u662f\u70ed\u7535\u52bf\uff0c\u70ed\u7535\u52bf\u7387\u8f83\u5c0f\uff0c\u7075\u654f\u5ea6\u4f4e\uff0c\u9ad8\u6e29\u4e0b\u673a\u68b0\u5f3a\u5ea6\u4e0b\u964d\uff0c\u5bf9\u6c61\u67d3\u975e\u5e38\u654f\u611f\uff0c\u8d35\u91d1\u5c5e\u6750\u6599\u6602\u8d35\u3002
K\u578b\u70ed\u7535\u5076\uff08\u954d\u94ec-\u954d\u7845\u70ed\u7535\u5076\uff09
\u3000\u3000K\u578b\u70ed\u7535\u5076\uff08\u954d\u94ec-\u954d\u7845\u70ed\u7535\u5076\uff09\u662f\u76ee\u524d\u7528\u91cf\u6700\u5927\u7684\u5ec9\u91d1\u5c5e\u70ed\u7535\u5076\uff0c\u5176\u7528\u91cf\u4e3a\u5176\u4ed6\u70ed\u7535\u5076\u7684\u603b\u548c\u3002
\u3000\u3000K\u578b\u70ed\u7535\u5076\u6b63\u6781\uff08KP\uff09\u7684\u540d\u4e49\u5316\u5b66\u6210\u5206\u4e3a\uff1aNi\uff1aCr=90\uff1a10\uff0c\u8d1f\u6781\uff08KN\uff09\u7684\u540d\u4e49\u5316\u5b66\u6210\u5206\u4e3a\uff1aNi\uff1aSi=97\uff1a3\u3002
\u3000\u3000K\u578b\u70ed\u7535\u5076\u4f7f\u7528\u6e29\u5ea6\u4e3a-200~1300\u2103\u3002
\u3000\u3000K\u578b\u70ed\u7535\u5076\u5177\u6709\u7ebf\u6027\u5ea6\u597d\uff0c\u70ed\u7535\u52a8\u52bf\u8f83\u5927\uff0c\u7075\u654f\u5ea6\u9ad8\uff0c\u7a33\u5b9a\u6027\u548c\u5747\u5300\u6027\u8f83\u597d\uff0c\u6297\u6c27\u5316\u6027\u80fd\u5f3a\uff0c\u4ef7\u683c\u4fbf\u5b9c\u7b49\u4f18\u70b9\uff0c\u80fd\u7528\u4e8e\u6c27\u5316\u6027\u60f0\u6027\u6c14\u6c1b\u4e2d\u3002
\u3000\u3000K\u578b\u70ed\u7535\u5076\u4e0d\u80fd\u76f4\u63a5\u5728\u9ad8\u6e29\u4e0b\u7528\u4e8e\u786b\uff0c\u8fd8\u539f\u6027\u6216\u8fd8\u539f\uff0c\u6c27\u5316\u4ea4\u66ff\u7684\u6c14\u6c1b\u4e2d\u548c\u771f\u7a7a\u4e2d\uff0c\u4e5f\u4e0d\u63a8\u8350\u7528\u4e8e\u5f31\u6c27\u5316\u6c14\u6c1b\u4e2d\u3002
N\u578b\u70ed\u7535\u5076\uff08\u954d\u94ec\u7845-\u954d\u7845\u70ed\u7535\u5076\uff09
\u3000\u3000N\u578b\u70ed\u7535\u5076\uff08\u954d\u94ec\u7845-\u954d\u7845\u70ed\u7535\u5076\uff09\u4e3a\u5ec9\u91d1\u5c5e\u70ed\u7535\u5076\uff0c\u662f\u4e00\u79cd\u6700\u65b0\u56fd\u9645\u6807\u51c6\u5316\u7684\u70ed\u7535\u5076\u3002
\u3000\u3000N\u578b\u70ed\u7535\u5076\u514b\u670d\u4e86K\u578b\u70ed\u7535\u5076\u7684\u4e24\u4e2a\u91cd\u8981\u7f3a\u70b9\uff1aK\u578b\u70ed\u7535\u5076\u5728300~500\u2103\u95f4\u7531\u4e8e\u954d\u94ec\u5408\u91d1\u7684\u6676\u683c\u77ed\u7a0b\u6709\u5e8f\u800c\u5f15\u8d77\u7684\u70ed\u7535\u52a8\u52bf\u4e0d\u7a33\u5b9a\uff1b\u5728800\u2103\u5de6\u53f3\u7531\u4e8e\u954d\u94ec\u5408\u91d1\u53d1\u751f\u62e9\u4f18\u6c27\u5316\u5f15\u8d77\u7684\u70ed\u7535\u52a8\u52bf\u4e0d\u7a33\u5b9a\u3002
\u3000\u3000N\u578b\u70ed\u7535\u5076\u6b63\u6781\uff08NP\uff09\u7684\u540d\u4e49\u5316\u5b66\u6210\u5206\u4e3a\uff1aNi:Cr:Si=84.4\uff1a14.2\uff1a1.4\uff0c\u8d1f\u6781\uff08NN\uff09\u7684\u540d\u4e49\u5316\u5b66\u6210\u5206\u4e3a\uff1aNi:Si:Mg=95.5\uff1a4.4\uff1a0.1
\u3000\u3000N\u578b\u70ed\u7535\u5076\u4f7f\u7528\u6e29\u5ea6\u4e3a-200~1300\u2103\u3002
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\u53c2\u8003\u8d44\u6599\u6765\u6e90\uff1a\u767e\u5ea6\u767e\u79d1\u2014\u2014\u5206\u5ea6\u53f7
S分度号的特点:
抗氧化性能强，宜在氧化性、惰性气氛中连续使用，长期使用温度1400℃，短期1600℃。在所有热电偶中，S分度号的精确度等级最高，通常用作标准热电偶;
R分度号与S分度号相比除热电动势大15%左右，其它性能几乎完全相同;B分度号在室温下热电动势极小，故在测量时一般不用补偿导线。它的长期使用温度为1600℃，短期1800℃。可在氧化性或中性气氛中使用，也可在真空条件下短期使用。
N分度号的特点:
1300℃下高温抗氧化能力强，热电动势的长期稳定性及短期热循环的复现性好，耐核辐照及耐低温性能也好，可以部分代替S分度号热电偶;
K分度号的特点;
抗氧化性能强，宜在氧化性、惰性气氛中连续使用，长期使用温度1000℃，短期1200℃。在所有热电偶中使用最广泛;
E分度号的特点:
在常用热电偶中，其热电动势最大，即灵敏度最高。宜在氧化性、惰性气氛中连续使用，使用温度0-800℃;
J分度号的特点:
既可用于氧化性气氛(使用温度上限750℃)，也可用于还原性气氛(使用温度上限950℃)，并且耐H2及CO气体腐蚀，多用于炼油及化工;
T分度号的特点:
在所有廉金属热电偶中精确度等级最高，通常用来测量300℃以下的温度。
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