Probe for measuring three-dimensional dynamic boundary layer of hub between rotor and static of fan

• Main Authors: MA HONGWEI, XIE ZHONGQIANG, ZHONG YAFEI
• Format: Patent
• Language: Chinese; English
• Published: 05.07.2022
• Subjects: ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS; MEASURING; MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR; PHYSICS; TARIFF METERING APPARATUS; TESTING; TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR

The utility model belongs to the technical field of subsonic three-dimensional flow field parameter testing, and particularly relates to a probe for measuring a three-dimensional dynamic boundary layer of a hub between a rotor and a static of a fan. Comprising a probe head, a supporting rod, a dynamic pressure sensor and a positioning block, the probe head comprises a cylinder and a double-twisted-wire rotating body which share the same bottom surface, the dynamic pressure sensor is packaged in the probe head, a pressure sensing hole is formed in the side face of the double-twisted-wire rotating body of the probe head, the hole is communicated with the dynamic pressure sensor in the probe head, and the positioning block is arranged in the pressure sensing hole. A sensor cable is led out of the tail of the probe through a channel in the probe supporting rod, and the tail of the probe is sleeved with a positioning block. The probe head is of a double-twisted-wire rotating body structure, the probe head is in a