1.Analysis of the limitations of traditional test methods In the aero-engine flight test, the traditional aerodynamic pressure test method usually adopts the mode of single channel with single sensor. This mode can meet the demand when the measured parameters are small, but as the measured parameters increase, the number of sensors and cables will also increase significantly, thus taking up a lot of airborne space. In addition, water droplets are easy to enter and freeze in the airflow piezometry pipeline during flight, resulting in measurement failure and seriously affecting the accuracy of test results.
2.Application advantages of Ethernet Intelligent Pressure Scanners In view of the limitations of traditional testing methods, the application of WindtunerEthernet Intelligent Pressure Scanners has unique advantages. First of all, Windtuner Technology integrated multiple sensors of Ethernet Intelligent Pressure Scanners into one module during its research and development, which greatly reduced the space occupied by the measurement equipment and effectively solved the problem of limited airborne space. Secondly, Ethernet Intelligent Pressure Scanners has high-precision measurement capabilities, and its measurement accuracy is much higher than that of traditional pressure sensors, which improves the accuracy of engine performance evaluation. In addition, Ethernet Intelligent Pressure Scanners also has a purge function, which can reverse blow off water droplets and foreign objects in the piezometric pipeline through high-pressure gas, prevent the pipeline from freezing and ensure the reliability of measurement data.
3.System design and implementation In order to realize the effective application of Ethernet Intelligent Pressure Scanners in aero-engine flight test, it is necessary to design and implement the system in detail. First of all, it is necessary to carry out the airborne adaptability design of the Ethernet Intelligent Pressure Scanners system, including the adaptability analysis and design with the airborne test system and power supply system. The switch between TCP protocol and UDP protocol is realized by software design, which meets the demand of data acquisition and monitoring on the machine. Secondly, it is necessary to design the control system of Ethernet Intelligent Pressure Scanners, including the design of air supply pressure, air supply temperature, working mode and control logic. Through reasonable air supply pressure design and reverse blow time control, the pressure measurement pipeline is ensured to be unimpeded. Finally, it is necessary to design the adaptability of the power supply system to ensure that the Ethernet Intelligent Pressure Scanners system can supply stable power during flight.
With the continuous development of aero-engine technology, Ethernet Intelligent Pressure Scanners will be widely used in more fields. At the same time, Windtuner Technology will continue to conduct in-depth research on the technical characteristics and application methods of Ethernet Intelligent Pressure Scanners, continuously optimize system design, improve measurement accuracy and reliability, and expand its application scope.