铜-康铜热电偶的锡膜焊接及热电特性  

Tinfoil Welding of Copper-constantan Thermocouples and Calibration

作　　者：石文星[1] 颜岩[1] 彭晓峰[1] 陆佩强[2] 

机构地区：[1]清华大学热能工程系,北京市100084 [2]天津商学院制冷工程系,天津市300400

出　　处：《仪表技术与传感器》2002年第3期43-44,46,共3页Instrument Technique and Sensor

摘　　要：提出一种制作铜 -康铜热电偶的新方法 :锡膜焊接法。既保证了焊接设备价格低廉 ,又避免了热电偶出现沾污、脆断等缺陷。利用此法制作的热电偶 ,各热电偶的一致性好 ,在 - 40～10 0℃温度范围内 ,与标准热电偶的热电特性吻合得很好 ,其精度达到± 0 .1℃ 。Tinfoil welding technique was employed to make copper-constantan thermocouples.Compared with other conventional methods,the tinfoil welding technique has several advantages,such as cheap equipment,easy operation,high precision and reliability and excellent reproducibility.Calibration conducted indicate that all thermocouples made by this method were coincident with each other very well and the uncertainty was within ±0.1℃ in the temperature range of -40～100℃.

关 键 词：铜-康铜热电偶 锡膜焊接 热电特性 

分 类 号：TH811[机械工程—仪器科学与技术] TP212.11[机械工程—精密仪器及机械]