基于磁流变阻尼器的自供能无线传感系统设计  

Design of self-powered wireless sensing system based on magnetorheological fluid damper

作　　者：汪忠[1] 余淼[1] 帅璐[1] 王四棋[1] 杨世凯 

机构地区：[1]重庆大学光电技术及系统教育部重点实验室光电工程学院,重庆400044 [2]重庆电工工业有限责任公司,重庆400036

出　　处：《传感器与微系统》2011年第12期126-128,132,共4页Transducer and Microsystem Technologies

基　　金：国家自然科学基金重点资助项目(50830202;60804018);教育部新世纪优秀人才支持计划资助项目(NCET-07-0910);教育部高等学校博士学科点科研基金资助项目(20090191110011)

摘　　要：为检测磁流变阻尼器的内部状态参数,提出一种电磁式机械能量采集器的新型结构,将磁流变阻尼器工作缸内活塞运动的机械能转换为电能,以超级电容器作为储能器件,设计了相应的能量管理电路,实现温度传感器和无线传感模块的能量供给。实验结果表明:自供能装置能产生高达4.5 V的开路电压,所设计的能量管理系统可以驱动无线传感模块正常工作。A novel structrue of electromagnetic mechanical energy harvesting device attached to the piston head of the damper is designed and fabricated to harvest the kinetic energy of the magnetorheological fluid （MRF） flow within the MRF damper. The uhracapacitor are used as reservoirs. The corresponding low power energy management circuit is designed to supply energy for temperature sensors and wireless sensor module to obtain the internal state parameters of damper. The performance test experiment demonstrates that the energy harvesting device is able to deliver power （ dozens of roW） at the peak open-circuit voltage up to 4.5 V, and the harvested power can guarantee the normal operation of wireless sensor.

关 键 词：磁流变阻尼器 自供能 能量管理电路 无线传感 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]