Title: Dynamic pressure probe and method for measuring high temp jet dynamic pressure by the probe
Application Number: 200610090767 Application Date: 2006.06.30
Publication Number: 1869623 Publication Date: 2006.11.29
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G01L19/00
Applicant(s) Name: Inst. of Mechanics, CAS Address: 100080
Inventor(s) Name: Meng Xian, Pan Wenxia
Attorney & Agent: yin zhenqi
Abstract:
     The invention discloses a dynamic pressure measuring probe and a method for measuring high temperature jet dynamic pressure by this probe. And it comprises a water cooled conical pressure probe and pressure sensor, where the water cooled conical pressure probe comprises outer tube whose head is made with sampling hole and whose center is provided with water-air isolating tube, the interacvity of the water-air isolating tube is formed with an airflow channel and a cooling water channel is formed between the water-air isolating tube and outer tube, the tail end of the outer tube is connected with the pressure sensor, the sensing surface of the pressure sensor corresponds to the airflow channel, and the pressure sensor is connected in turn with amplifier and signal collection system by signal lines. And the invention reduces inlet water pressure requirements and reduces measuring cost, and can conveniently and quickly obtain dynamic pressure distribution on jet cross section, largely reducing measuring time.
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