动态探针测试系统的开发和应用

An advanced measuring system in the world for unsteady flow field with combined three-hole probe of which the structure can be easily made and maintained has been developed. Thestructure of combined probe, calibration method, measuring system of dynamic characteristicfor probe, flow measuring system and method have been described in detail in this paper..It has been probed by the two examples successfully using the measuring system in pumpresearch that this system plays an important role in turbomachiney research.