计量学报2023，Vol.44Issue(12)：1812-1818,7.DOI:10.3969/j.issn.1000-1158.2023.12.05
基于接触电阻法测量润滑油膜厚度的方法研究
Research on Thickness Measurement of Lubricating Oil Film Based on Contact Resistance Method
摘要
Abstract
A method for measuring lubricating oil film thickness based on contact resistance method has been proposed,and a rotating friction testing machine that can measure contact resistance in real-time to evaluate lubricating film thickness has been developed.The correlation between oil film thickness and contact resistance in boundary lubrication and mixed lubrication states is studied and established.Load and speed are precisely controlled to realize a stable lubrication condition.The electrical resistance of the contact area is measured in-situ by a specially and precisely designed electrical circuit.Corresponding relation between the contact resistance and lubrication film thickness measured by the optical interference method under the same working conditions has been established,the correlation coefficient of the fitting curve is 0.98,and the remaining standard deviation is 4.56 nm.This study provides technical experience and data support for the characterization of lubrication state in real operating conditions.关键词
膜厚测量/润滑/接触电阻法/摩擦试验机Key words
film thickness measuremen/lubrication/contact resistance method/friction testing machine分类
通用工业技术引用本文复制引用
童伟杰,黄鹭,贾鑫,孙淼,蔡晋辉..基于接触电阻法测量润滑油膜厚度的方法研究[J].计量学报,2023,44(12):1812-1818,7.基金项目
中国计量科学研究院基本科研业务费(AKYZD2203) （AKYZD2203）
