针对目前广泛应用的单点接触试验装置存在测量困难、接线干扰等问题，以双点接触为框架研发并建造了新型电阻试验测试装置.采用自下而上的加载方式，减少了装置自重对测试结果的影响；在相对静止的双下试件上测量电阻，避免了在运动件上接线，简化了电·；利用自适应浮动机构实现自动调节平衡，保证双点接触状态的一致性；自主开发了数据采集系统，可对试验中的物理量进行自动采集与保存，方便后期处理.该装置经测试表明，试验中的摩擦系数变化规律与Stribeck曲线相似，测得的接触电阻与载荷、摩擦力的变化有较高的关联性，可为润滑状态的判定提供依据.本装置结构简单，现象明显，且测量精度有保障，是一种研究摩擦副摩擦学行为的有效试验装置.

Aiming at the problems of measurement difficulty and wiring interference in singlepoint contact test device which has been widely used at present, a new type of resistance test device was developed and constructed based on the framework of double point contact. The bottomup loading method was adopted to reduce the influence of device weight on the test results; the resistance was measured on the relatively static double lower test piece to avoid wiring on the moving part and simplify the circuit; the selfadaptive floating mechanism was used to realize the automatic adjustment balance to ensure the consistency of the twopoint contact state; the data collection system was independently developed, which could automatically collect and preserve the physical quantities in the test, and convenient postprocessing. The test results show that the variation law of friction coefficient in the test is similar to Stribeck curve, and the contact resistance has a high correlation with the changes of load and friction force, which can provide a basis for judging the lubrication state. The device has the advantages of simple structure, obvious phenomenon and guaranteed measurement accuracy as an effective experimental device for studying the tribological behavior of friction pairs.