[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fGTVw_QqIrjzibp1DkgJtslUxlpkicY2VTu_UZf1onms":3},{"id":4,"source":5,"question":6,"options":7,"answer":12,"related":13,"type":24,"origin":111,"createTime":26},28174064,"v1","对于热电偶冷端温度不等于( ),但能保持恒定不变的情况,可采用修正法",[8,9,10,11],"20℃","0℃","10℃","5℃",[],[14,27,37,47,57,67,77,87,97,107],{"id":15,"source":5,"question":16,"options":17,"answer":22,"related":23,"type":24,"origin":25,"createTime":26},28174055,"热电偶的基本组成部分是( )",[18,19,20,21],"热电极","保护管","绝缘管","接线盒",[],[],0,null,"2023-05-24T23:43:08+08:00",{"id":28,"source":5,"question":29,"options":30,"answer":35,"related":36,"type":24,"origin":25,"createTime":26},28174056,"热电偶测量温度时( )",[31,32,33,34],"需加正向电压","需加反向电压","加正向、反向电压都可以","不需加电压",[],[],{"id":38,"source":5,"question":39,"options":40,"answer":45,"related":46,"type":24,"origin":25,"createTime":26},28174057,"热电偶中热电势包括( )",[41,42,43,44],"感应电势","补偿电势","接触电势","切割电势",[],[],{"id":48,"source":5,"question":49,"options":50,"answer":55,"related":56,"type":24,"origin":25,"createTime":26},28174058,"一个热电偶产生的热电势为E0,当打开其冷端串接与两热电极材料不同的第三根金属导体时,若保证已打开的冷端两点的温度与未打开时相同,则回路中热电势( )",[51,52,53,54],"增加","减小","增加或减小不能确定","不变",[],[],{"id":58,"source":5,"question":59,"options":60,"answer":65,"related":66,"type":24,"origin":25,"createTime":26},28174059,"热电偶中产生热电势的条件有( )",[61,62,63,64],"两热电极材料相同","两热电极材料不同","两热电极的几何尺寸不同","两热电极的两端点温度相同",[],[],{"id":68,"source":5,"question":69,"options":70,"answer":75,"related":76,"type":24,"origin":25,"createTime":26},28174060,"下列关于热电偶传感器的说法中,( )是错误的",[71,72,73,74],"热电偶必须由两种不同性质的均质材料构成","计算热电偶的热电势时,可以不考虑接触电势","在工业标准中,热电偶参考端温度规定为0℃","接入第三导体时,只要其两端温度相同,对总热电势没有影响",[],[],{"id":78,"source":5,"question":79,"options":80,"answer":85,"related":86,"type":24,"origin":25,"createTime":26},28174061,"在实际的热电偶测温应用中,引用测量仪表而不影响测量结果是利用了热电偶的哪个基本定律( )",[81,82,83,84],"中间导体定律","中间温度定律","标准电极定律","均质导体定律",[],[],{"id":88,"source":5,"question":89,"options":90,"answer":95,"related":96,"type":24,"origin":25,"createTime":26},28174062,"利用热电偶测温时,只有在( )条件下才能进行",[91,92,93,94],"分别保持热电偶两端温度恒定","保持热电偶两端温差恒定","保持热电偶冷端温度恒定","保持热电偶热端温度恒定",[],[],{"id":98,"source":5,"question":99,"options":100,"answer":105,"related":106,"type":24,"origin":25,"createTime":26},28174063,"为了减小热电偶测温时的测量误差,需要进行的温度补偿方法不包括( )",[101,102,103,104],"补偿导线法","电桥补偿法","冷端恒温法","差动放大法",[],[],{"id":4,"source":5,"question":6,"options":108,"answer":109,"related":110,"type":24,"origin":25,"createTime":26},[8,9,10,11],[],[],{"courseName":112,"courseImg":113,"workName":114,"workId":115,"count":116,"courseId":117},"检测与转换技术","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fd53ac0923b1e7d5bedd3f67ff8a55493.jpg","第9次课 测验","476fbc71d81f42d1afc19205fc2fd82c",10,"150c274aed47ef622caf365fdb962519"]