车载用油品质量在线检测仪的设计  

Online Detector Design for Vehicle Gasoline Quality

作　　者：顾权[1,2] 施云波[1,2] 修德斌[1,2] 

机构地区：[1]哈尔滨理工大学测控技术与通信工程学院,哈尔滨150080 [2]哈尔滨理工大学测控技术与仪器黑龙江省高校重点实验室,哈尔滨150080

出　　处：《化工自动化及仪表》2012年第1期36-39,84,共5页Control and Instruments in Chemical Industry

基　　金：哈尔滨市科技创新人才研究专项资金资助项目(2010RFXXG009);黑龙江省教育厅科学技术研究项目(11541047)

摘　　要：设计了一种汽油质量检测系统,检测探头是借助介电常数变化来测量的电容式传感器,该传感器工作在2MHz下,检测范围0～30pF,分辨力小于1pF,响应时间小于1s,并应用ANSYS软件对传感器检测场进行分析。通过传感器实时检测汽油浓度的变化,以MSP430单片机为控制和处理核心,将采集的浓度值和工作环境温度值进行处理,并通过液晶显示。该仪器便携,易于车载且稳定性好。A gasonline quality inspecting system with capacitive sensor was designed, of which, the capacitive sensor boasting of 2MHz, 0 to 30pF range, less than lpF resolution and less than l s response time can work as detecting probe through measuring dielectric constant change, and can have the testing field analyzed with ANSYS software, and the real time detected gasoline concentration and the ambient temperature processed with MSP430 microcontroller and displayed via liquid crystal. The application proves its good portability and stability.

关 键 词：电容传感器 介电常数 MSP430 ANSYS 

分 类 号：TH165.4[机械工程—机械制造及自动化]