用K型热电偶测某设备的温度，测得的热电势为20mV，冷端（室温）为25C，求设备的温度? 用K型热电偶测某设备的温度，测得的热电势为20mV，冷端（室...
\u7528k\u578b\u70ed\u7535\u5076\u6d4b\u67d0\u8bbe\u5907\u7684\u6e29\u5ea6\uff0c\u6d4b\u5f97\u7684\u70ed\u7535\u52bf\u4e3a20mv,\u51b7\u7aef(\u5ba4\u6e29)\u4e3a25C\uff0c\u5219\u8be5\u8bbe\u5907\u7684\u6e29\u5ea6\u4e3a\uff1f\u3000\u3000508.3\u2103
\u3000\u3000K\u578b\u70ed\u7535\u5076\u51b7\u7aef25\u2103\u5bf9\u5e94\u7684\u8865\u507f\u7535\u52bf\u4e3a 1.000 mV
\u3000\u300020.000mv+1.000mV=21.000mV\uff0c\u5bf9\u5e94\u6e29\u5ea6\u4e3a508.32\u2103
\u6211\u624b\u5934\u6ca1\u6709\u70ed\u7535\u5bf9\u7167\u8868\uff0c\u53ea\u80fd\u544a\u8bc9\u4f60\u65b9\u6cd5\u3002\u70ed\u7535\u5076\u6d4b\u6e29\u7684\u4e00\u4e2a\u57fa\u672c\u539f\u7406\u662f\uff1a\u70ed\u7535\u52bf\u662f\u6e29\u5ea6\u7684\u51fd\u6570\u5dee\u3002\u6ce8\u610f\uff1a\u4e0d\u662f\u6e29\u5dee\u7684\u51fd\u6570\uff01\u8fd9\u610f\u601d\u5c31\u662f\u4ee5\u6b64\u9898\u4e3a\u4f8b\uff1a\u5e94\u5f53\u5148\u5c06\u51b7\u7aef25\u00b0\u7684\u7535\u52bf\u67e5\u5904\uff08K\u5206\u5ea6\u5e94\u5f53\u662f1mV\u5de6\u53f3\uff09\uff0c\u52a0\u523020mV\u4e0a\u5f9721mV\uff0c\u7136\u540e\u518d\u67e521mV\u6240\u5bf9\u5e94\u7684\u6e29\u5ea6\uff0c\u4f30\u8ba1\u5e94\u8be5\u662f509\u00b0\u5de6\u53f3\u3002
\u5982\u679c\u91c7\u7528E\u578b\u70ed\u7535\u5076\u6d4b\u91cf\uff0c\u5e94\u5f53\u5148\u67e5509\u00b0\u6240\u5bf9\u5e94\u7684\u70ed\u7535\u52bf\uff0c\u518d\u51cf\u53bb25\u00b0\u6240\u5bf9\u5e94\u7684\u70ed\u7535\u52bf\uff0c\u5373\u4e3a\u6240\u6c42\u3002\u4e0d\u53ef\u4ee5\u5148\u7528509\u00b0\u51cf25\u00b0\uff0c\u518d\u7528509-25=584\u53bb\u67e5\u70ed\u7535\u5bf9\u7167\u8868\uff0c\u90a3\u662f\u4e0d\u5bf9\u7684\u3002
绛旓細鐑娓╁害涓 508.33鈩冦
绛旓細K鍨嬬儹鐢靛伓鍐风25鈩冨搴旂殑琛ュ伩鐢靛娍涓 1.000 mV 20.000mv+1.000mV=21.000mV锛屽搴娓╁害涓508.32鈩
绛旓細濡傛灉閲囩敤E鍨嬬儹鐢靛伓娴嬮噺锛搴斿綋鍏堟煡509掳鎵瀵瑰簲鐨勭儹鐢靛娍锛屽啀鍑忓幓25掳鎵瀵瑰簲鐨勭儹鐢靛娍锛屽嵆涓烘墍姹傘備笉鍙互鍏堢敤509掳鍑25掳锛屽啀鐢509-25=584鍘绘煡鐑數瀵圭収琛紝閭ｆ槸涓嶅鐨勩
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绛旓細鏌K鍨嬬儹鐢靛伓鍒嗗害琛紝37.712m鈪ゅ搴旂害909.6鈩冿紙鐑涓庡喎绔殑娓╁害宸級锛屽喎绔俯搴︿负30鈩冿紝閭ｄ箞鐐夊唴娓╁害涓猴細909.6鈩+30鈩=939.6鈩冦
绛旓細E(T,20)=40.557 E(20,0)=0.798 E(T,0)=40.557+0.798=41.355mV 瀵瑰簲娓╁害 1002.0鈩
绛旓細S鍨嬬儹鐢靛伓鍐风娓╁害50鈩冿紝鏄剧ず涓800鈩冩椂锛岃緭鍏V鍊间负7.045mV锛K鍨嬬儹鐢靛伓鍐风娓╁害50鈩冿紝杈撳叆mV鍊间负7.045mV鏃讹紝鏄剧ず搴斾负223鈩冦
绛旓細鐑數鍋涓棿娓╁害瀹氬緥锛氱儹鐢靛伓鍥炶矾涓ゆ帴鐐癸紙娓╁害涓篢銆乀0锛夐棿鐨勭儹鐢靛娍锛岀瓑浜庣儹鐢靛伓鍦ㄦ俯搴︿负T銆乀n鏃剁殑鐑數鍔夸笌鍦ㄦ俯搴︿负Tn銆乀0鏃剁殑鐑數鍔跨殑浠ｆ暟鍜屻俆n绉颁腑闂存俯搴︺傛祴鍒扮殑鐑數鍔ㄥ娍29.20ImV 涓篢銆乀n鏃剁殑鐑數鍔匡紝鏌ヨ〃寰桾n銆乀0=40鈩冩椂鐨勭儹鐢靛娍1.612mV锛孴銆乀0鐨勭儹鐢靛娍涓29.20ImV +1.612mV=30.813...
绛旓細閮芥槸宸茬粡琛ュ伩杩鐨勬俯搴銆傛墍浠娓╁害娴嬮噺杩囩▼涓紝鎴戜滑浜轰负寰椾笉闇瑕佸幓鑰冭檻鍐风娓╁害銆傚叾姝ｇ‘鍊煎嵆涓520鈩冦K鍨嬬儹鐢靛伓鍙互鐩存帴娴嬮噺鍚勭鐢熶骇涓粠0鈩冨埌1300鈩冭寖鍥寸殑娑蹭綋钂告苯鍜屾皵浣撲粙璐ㄤ互鍙婂浐浣撶殑琛ㄩ潰娓╁害銆侹鍨嬬儹鐢靛伓閫氬父鐢辨劅娓╁厓浠躲佸畨瑁呭浐瀹氳缃拰鎺ョ嚎鐩掔瓑涓昏閮ㄤ欢缁勬垚銆
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