基于SPRT技术的温度/压力表综合试验器的设计

本文研制一种能快速检查不同飞机、各种型号的发动机排气温度表和压力表等100多个信号的温度／压力表综合试验器。该试验器采用PCI04总线技术，实现了检测设备的综合化、数字化，它能取代几十个老式、相对独立的检测设备，与老式试验器相比维护效率提高了8倍以上。采用改进的Wald的序惯概率比法（SPRT）对温度表传感器的软故障进行检测，解决了飞机温度表传感器软故障无法检测的难题，使检测传感器的误警率从原来的5％下降到1％。

Design of synthetic tester of temperature/pressure instruments based on SPRT technique

This paper develops a synthetic tester of temperature/pressure instrument which can fast measure more than 100 signals in the different type of aircraft instruments such as exhaust- gas thermometer and pressure gauge.Using PC104 bus technology,the tester realizes integra- tion and digital of test equipments.As a result,decades of old and relatively independent test equipments are replaced.Maintenance efficiency increases by 8 times more than old type of tester.Improved Wald method of Sequential Probability ...