| 摘要 |
A calibration apparatus of a gas-liquid two-phase flow speed and gas content sensor for concurrently measuring the two-phase flow speed and gas content by using a pressure sensor and a conducting electrode comprises parts such as a liquid supply system, a gas supply system, two stepper motors, a rack system having two rotational degrees of freedom, a gas-liquid mixer, a nozzle, a calibration cabin, a data acquisition and management system, and a control computer. During calibration, under each fixed angle in the directions of the two rotational degrees of freedom, pressure values of multiple pressure holes of a measuring probe are recorded, and then the gas content is adjusted within a predetermined range, and finally, output voltages of all conducting electrodes on the measuring probe are recorded under different gas content and according to multiple combinations of electrode pairs. |
