High temperature, pressure, vibration sensor development project passed the mid-term inspection

[ China Instrument Network Instrument Development ] The National Key Research and Development Program, the National Key R&D Program of China Aviation Industry Corporation, Beijing Great Wall Metrology and Testing Technology Research Institute, the key project for the development of high-temperature temperature, pressure and vibration sensors Efforts have overcome the measurement problems of multi-parameter coupling under complex conditions such as high-temperature vibration, and developed high-temperature temperature, pressure, and vibration sensor samples. Recently, the project successfully passed the mid-term inspection organized by the High Technology Center of the Ministry of Science and Technology.

Temperature, pressure and vibration parameters are the most critical thermal parameters in the design and verification of major equipment such as aero-engines and super-engines. The project is based on the in-situ measurement requirements for the key test parameters of major equipment such as aero-engines and ramjets in China. The in-depth measurement of high temperature surface temperature, total temperature and temperature field distribution, and high temperature pressure are analyzed. And the influence of key thermal parameters such as high-temperature vibration, through the establishment of measurement models and related compensation algorithms under complex conditions, broke through the sensor probe structure and design and production key technology suitable for on-site measurement in situ.

By studying the thermal radiation background based on equivalent emissivity, multi-spectral temperature measurement, multi-angle fan beam temperature field inversion, niobium alloy shield grain boundary pinning and toughening, sapphire pressure sensitive structure design based on high temperature bonding process, Non-stationary complex photoelectric signal processing and identification and other key technologies have formed independent intellectual property rights including multi-spectral high-temperature surface temperature sensor, TDLAS gas temperature sensor, non-standard airflow total temperature sensor, high-temperature fiber optic pressure sensor, high-temperature laser vibration sensor. Five temperature, pressure, and vibration sensor samples.

The next step of the project will focus on the engineering and industrialization of temperature, pressure and vibration sensor products, build small production lines, and form high-end mass production capacity of temperature, pressure and vibration sensors for the development of aero engines, super-engines, heavy-duty gas turbines. Advanced energy power systems provide support.