摘要
通过理论和试验分析的方法确定了介电常数作为润滑油品质衰变评价指标的可行性,研发了准确检测润滑油介电常数的玻璃管型车载电容传感器及脉冲调宽式振荡检测电路,并以此为基础开发了润滑油综合性能在线监测系统,从而实现了车用润滑油的按质换油,克服了'观察换油'或'按期换油'的弊端。
The feasibility of using the dielectric constant as an evaluation index to evaluate the quality degradation of the lubrication oil was verified through theoretical analysis and experimental approach.A glass-tube sensor to detect accurately the dielectric constant of the lubrication oil and a related PWM oscillation delection circuit were developed.A monitoring system to monitor on-line the comprehensive properties of the lubrication oil was made up based on the above-mentioned components,thus realizing to change the vehicle lubrication oil according to its quality instead of according to visual obserration or on schedule.
出处
《吉林大学学报（工学版）》
EI
CAS
CSCD
北大核心
2009年第6期1441-1445,共5页
Journal of Jilin University:Engineering and Technology Edition
基金
'863'国家高技术研究发展计划项目(2006AA04Z10)
长春市科技基金项目(06GJ14)
关键词
车辆工程
润滑油
介电常数
电容式传感器
在线监测系统
vehcile engineering
lubrication oil
dielectric constant
capacitance sensor
on-line monitoring system
