摘要
基于MC9S08DZ60单片机、K型热电偶和MAX31855冷端补偿热电偶至数字输出转换器设计分布式热电偶温度采集系统,实现多路热电偶温度的数据采集及处理。采集系统的分辨率为0.5℃,可进行热电偶的开路及短接等故障检测,具有较高的检测速度和精度。测试试验结果表明,设计的热电偶温度采集系统能够实现温度的实时检测,具有良好的稳定性,可满足实际应用的要求。
A distributed thermocouple temperature acquisition system based on MC9S08DZ60 micro controller,K thermocouple and MAX31855 cold-end compensation thermocouple to digital output converter is designed,by which the temperature data acquisition and processing of multichannel thermocouple could by achieved.The resolution of the acquisition system can reach 0.5℃and the fault detection of open circuit and short circuit of thermocouple can be realized,with high detection speed and accuracy.The test results show that real-time temperature detection could be carried out by this thermocouple temperature acquisition system stably.
作者
李洋
刘振革
王仁辉
马荣泽
郭兴
纪少波
于泽庭
LI Yang;LIU Zhen′ge;WANG Renhui;MA Rongze;GUO Xing;JI Shaobo;YU Zeting(School of Energy and Power Engineering, Shandong University, Jinan 250061, China;Shandong Technician Institute, Jinan 250200, China;Longkou Longbeng Diesel Injection Technology Equipment Co. , Ltd. , Longkou 265701, China)
出处
《内燃机与动力装置》
2020年第2期12-17,共6页
Internal Combustion Engine & Powerplant
基金
国家重点研发计划(面向重型载货车用燃料电池发动机集成与控制)。
关键词
热电偶
温度采集
模拟信号
故障检测
thermocouple
temperature collection
analog signal
fault detect
