Hemispherical head four-hole dynamic pressure probe for measuring low-speed three-dimensional unsteady flow

摘要: The invention belongs to the technical field of pressure test, and discloses a hemispherical head four-hole dynamic probe for measuring low-speed three-dimensional unsteady flow. comprises supporting rod. cylinder hemisphere which share bottom surface, four sensors are packaged in head. same side is provided with sensing holes not communicated each other, wherein surface three holes. arranged cables led out tail part through channel Compared existing probe, change total pressure, static deflection angle, pitch angle Mach number flow along time can be simultaneously measured calibration wind tunnel so that suitable testing inlet, outlet inter-stage gas compressor, fan, blower pump.