某型飞机压差信号器试验台设计

Test-bed Design of Differential Pressure Singles for an Aircraft

针对目前民用飞机发动机供油系统压差信号器检测台检测方法的缺陷,该文设计了基于信号器的气密性和动压腔、静压腔压力差检测压差信号器性能的试验台。试验台由精密的压力表和压差表显示检测数据,通过直流稳压电源为检测信号灯及压差表传感器供电,使用特制密封接头连接压力信号器。通过实验证明该试验台能够准确测出飞机压差信号器的灵敏度,满足航修公司对压力信号器的检测要求,已在实际中取得良好的应用效果。

Aiming at the defects of the testing devices used to detect the pressure difference annunciator of fuel supply system of civil aircraft,we designed a new equipment based on the air tightness of the annunciator and the pressure difference between the dynamic oil chamber and the static oil chamber.The equipment uses precise pressure gage and differential pressure gauge to display the measured data and powers the signal lamps and the sensor of differential pressure gauge.It connects the pressure annunciator through the seal joint.The experiment shows that the equipment could accurately measure the sensitivity of the pressure difference annunciator and is satisfied the requirements of voyage repairing company which gains the better efficiency in practice.