新型超声磨粒传感器输出特性研究  

Output Characteristic of a Novel Online Ultrasonic Wear Debris Sensor

作　　者：徐超[1] 张培林[2] 任国全[2] 王正军[1] 李一宁[2] 吕纯[2] 

机构地区：[1]军械工程学院军械技术研究所,河北石家庄050005 [2]军械工程学院七系,河北石家庄050003

出　　处：《摩擦学学报》2015年第1期90-95,共6页Tribology

基　　金：国家自然科学基金(51205405与51305454)资助~~

摘　　要：设计了一种新型超声磨粒传感器,对传感器的输出一致性以及油液温度、黏度对传感器输出的影响进行了试验分析.结果表明:该超声磨粒传感器能够有效检测润滑油中小至45μm的磨粒并且具有良好的输出一致性;传感器的输出随着油液温度与黏度的增加而减小;高温时,因温度升高导致的换能器性能下降明显;低温时,高黏度油液对声波的吸收衰减作用显著.提出了磨粒在检测区域中的轴向位置及油液温度、黏度影响因素的修正方法.A novel ultrasonic wear debris sensor is designed. The conformity of sensor output as well as the influence of oil temperature and viscosity on the output was analyzed experimentally. It is revealed that the ultrasonic wear debris sensor can detect wear debris in oil as small as 45 μm and had a good consistency. The output of the sensor decreased with the increase of oil temperature and viscosity. The performance degradation of the transducer due to high temperature was evident. The acoustic absorption in the high-viscosity oil at low temperature was the main reason of the decrease of sensor output. The correction methods for the wear debris position in detecting zone and the oil temperature and viscosity were proposed.

关 键 词：磨粒监测 磨粒传感器 超声波 传感器输出特性 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]