基于LabVIEW的瞬态温度测试系统.PDFVIP

2008 仪 表 技 术 与 传 感 器 2008 6 Instrum ent Techn ique and Sensor No16 LabVIEW 杨 磊, 方建成, 赵紫玉, 高燕清 (, 362021) : 针对极端工况下瞬态温度动态诊断的难题, 设计了 钨铼快速热电偶为传感元件和 LabV IEW 为开发平台的测 试系统, 对热电偶进行了冷端温度补偿, 实现了在侵蚀环境下的瞬态温度的诊断对锌熔滴扁平过程瞬态温度测试表明, 其温度变化范围在m s级, 并 波形图的形式显示出了瞬态温度的变化情况, 对其进行了分析该系统可用于发动机进 口爆发器内壁等工业和军工中需要快速高温测量的领域 : 瞬态温度; 快速热电偶; LabV IEW : TH 811 : B : 1002- 18 1( 2008) 06- 00 9- 03 Transient TemperatureM easurem ent System Based on LabVI EW YANG Lei, FANG Jian-cheng, ZHAO Z-iyu, GAO Yan-q ing ( Colle e ofM echanical En ineerin and Autom ation, Huaqiao University, Quanzhou 362021, China) Abstract: A mi ing at the technical prob lems of transient tem peraturem easurem ent in severe industrial environm ent, th is paper presented a m easurem ent system based on thew olfram rhen ium fast-speed therm ocouple and LabV IEW wh ich can m easure and an- alyze the transient tem perature d irectly in corrosive environment. In this system, the cold junction of thermocoup le w as com pensa- ted. U sing the system, the fast-changing tem perature of them olten droplets of Zn w asm easured, wh ich changed in severalm illisec- onds. The changes of the trans ient temperature w ere d isplayed by virtualw aveform graphs and the resu ltsw ere analyzed in detai.l Th is system can be used in the fieldswh ich need fast tem peraturem easurem ent such as in let tem perature of engine, in-wall temper- ature of closed-bom b. K ey words: transient tem perature; fast-speed therm ocouple; LabV IEW 0 1 , 11 1 , ,