The study to pressure and flow measurement for hydraulic system on basis of non- inserting technology

The non-inserting measurement of the pressure and flow and the technology to the hydraulic system for fault diagnosis are reviewed. A new measurement method using pipe distortion to measure the pressure and flow of the fluid in the pipe based on non-inserting technology was proposed. The feasibility corresponding measuring deformation of the pipeline by strain method was proved. The guidance for the location of the clamps in the pipe has been given. Experiments were analyzed. The dynamic pressure in hydraulic pipe can be measured by strain method was proved. The flow was calculated by the dynamic pressure using the pipeline dynamic model.