发动机旋转部件温度实时无线测试系统设计  

Design of real-time wireless test system for temperature of engine rotating parts

作　　者：桑豆豆 卢洪义 杨禹成 章斌 刘舜 SANG Doudou;LU Hongyi;YANG Yucheng;ZHANG Bin;LIU Shun(School of Aircraft Engineering,Nanchang Hangkong University,Nanchang 330063,China)

机构地区：[1]南昌航空大学飞行器工程学院,江西南昌330063

出　　处：《传感器与微系统》2024年第3期84-87,91,共5页Transducer and Microsystem Technologies

基　　金：江西省重点基金资助项目(20201BBE51002);江西省研究生创新专项基金资助项目(YC2021-S685);南昌航空大学研究生创新专项基金资助项目(YC2021-060)。

摘　　要：为了在航空发动机试验时,对旋转部件的温度状态进行实时监测,利用铂(Pt)薄膜热电阻温度传感器和STM32,设计了多通道温度实时无线测试系统。该系统以STM32控制多路选择开关和放大器等元器件,并使用其片内模/数转换器(ADC)对多路电信号进行转换,通过无线技术将温度数据发送到上位机。在涡桨发动机试验台完成了对桨叶的温度实时无线测量,解决了旋转部件无法引出信号线进行实时温度监测问题。实验结果表明,该系统的测量精度优于0.1℃,分辨率达到0.01℃。In order to real-time monitor temperature state of rotating parts during aero-engine testing,a multi-channel temperature real-time wireless test system is designed using platinum thin film thermal resistance temperature sensor and STM32.The system uses STM32 to control components such as multiplexer switches and amplifiers,and uses its internal analog-to-digital converter(ADC)to convert multichannel electrical signals.The temperature data is sent to the host computer through wireless technology.The real-time wireless measurement of the temperature of the blades is completed on the turbo-prop engine test bench.The problem that the rotating parts cannot lead out the signal line for real-time temperature monitoring is solved.Expermental results show that the measurement precision of the system is prior to 0.1℃,and the resolution reaches 0.01℃.

关 键 词：发动机测试 温度 多路通道 实时监测 无线传输 旋转部件 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置] V216.8[自动化与计算机技术—控制科学与工程]