液压系统故障诊断的便携式“液压万用表”

本文提出开发液压系统故障诊断技术．已是当务之急．文中侧重对现场和野外作业的便携式液系统故障诊断器的工作原理，具体结构以及故障诊断的典型模式进行了论述，文章还对诊断中的动、静态误差作了分析．本文不仅对于现场液压系统故障诊断具有指导意义，而且在液压系统的设计和开发、生产液压诊断器方面都有实用价值．

Portable "Hydraulic Multimeter" in Fault Diagnosis of Hydraulic system

Exploiting fault diagnosis technique of hydraulic system is an urgent matter, this paper lays emphasis on principle of operation. Specific strutrue of portable fault diagnosis instrument of hydraulic system, and typical testing procedure of fault diagnosis at worksite or fieldwork, have been discussed. Dynamic and static error in diagnosis is analysed also. This paper not only gives significant instructions for fault diagnosis at worksite, but also has practical value for design of hydraulic system and development of diagnosis instruments.