Dynamic Measurement Device of Aeroengine Pressure Probe

Abstract

Abstract In order to improve the dynamic performance evaluating abilities of the pressure probe of the aeroengine, by loading sine pressure with variable static pressure and temperature and measuring the dynamic pressure process, the pressure probe is calibrated. The dynamic pressure device based on the electroacoustic transducer can produce (20∼1000) Hz sinusoidal pressure within 1 MPa static pressure environment, and the sinusoidal pressure amplitude can reach 10 kPa. The temperature system is established by the convection heating mode to provide (20∼400) °C temperature environment for the pressure probe. The dynamic measurement device of pressure probe with controllable static pressure and temperature is established. The performance of the device is tested, and the test results are stable and reliable. The device is used for dynamic measurement of traditional pressure sensor and pressure probe. The device can simulate the work environment of the tested object and could be widely used in dynamic characteristics tests and evaluation of the pressure probe and other pressure system with transmission pipe.