干簧管式沼气贮气柜升降高度在线测量系统研究  

Online Dry Reed Pipe Height Measurement System for Biogas Holder

作　　者：赵燕丽[1] 吴军辉[1] 朱洪光[1] 马丽君[1] 

机构地区：[1]同济大学现代农业科学与工程研究院,上海200092

出　　处：《农业机械学报》2010年第12期116-120,共5页Transactions of the Chinese Society for Agricultural Machinery

基　　金："十一五"国家科技支撑计划资助项目(2008BADC4B05);筹建上海设施农业工程技术研究中心项目(08DZ2210700;2008BAJ08B0);上海市科委项目(07DZ12050);上海市科委科技发展基金资助项目(09391910700)

摘　　要：沼气工程中贮气柜升降高度在线测量,对其安全控制、沼气产量估算和沼气户用信息管理等十分重要。设计了一套由永磁铁、干簧管测量标杆和数据采集板组成的气柜升降高度在线测量系统,磁铁安装在气柜配重架一侧。测量标杆由多级级联的干簧管传感器组构成,通过芯片级联实现数据串联传输。数据采集板为单片机系统,用于采集和上传数据信号。通过增强电路设计解决多级级联信号衰减问题,保障系统实现大尺度气柜高度测量。以恒压柔性沼气贮气柜为对象进行系统调试,结果表明系统稳定性好,测量精度满足实际工程需求。The online height measurement for a gas storage cabinet in the biogas project is great significant to its security control,estimations of biogas production and management of biogas consumption information.An online measurement of height called reed pipe online height measurement system which satisfied the demand of online measurement of the biogas holder was designed.The system was consisted of a permanent magnet,benchmarking measurements of reed switch and data acquisition boards.The magnet was mounted on the side of the counterweight frame.Benchmarking was a composition of multi-level with reed sensor group,and achieved data transmission through the chip concatenation.Data acquisition board was SCM system and the main role was to capture and upload the high signal.The system increased the enhanced cascade circuit to solve signal attenuation which was cased by the multi-level,in order to protect the system to utilize in the large-scale degree measurement of a gas-holder high test.Take constant-pressureflexible biogas holder as an object,the system debugged,and results showed that the system had good stability and met the measurement accuracy practical engineering requirements.

关 键 词：沼气贮气柜 在线测量 高度测量 干簧管 芯片级联 

分 类 号：S216.4[农业科学—农业机械化工程] S126[农业科学—农业工程]