高度传感器自动测试系统的设计与实现

Design on Automatic Test System of Altitude Sensor

针对高度传感器型号多、数量大的测试需求,研制了高度传感器自动测试系统;采用多通道CPCI、GPIB、RS-232和以太网等总线仪器设计标准化、模块化结构的硬件平台,以DLL、ActiveX、COM等技术设计层次化、开放式的软件底层架构,在VC++环境下开发便于集成、可配置化的应用程序;能对高度传感器全部指标(总压、静压等)进行测试,得到成功应用;整体校准,确保了测试结果的可靠性和测试系统的使用效率;并行测试和自动测试提高了检测效率,降低了检测成本;通用性、扩展性的设计理念使测试系统便于增加类似传感器的测试;实验与应用结果表明,测试系统能完成实时数据采集和无人值守全自动测试,系统的可靠性高、通用性强,测量的准确性、精度及效率显著提高。

For the testing demands of altitude sensor,an auto-test system has been designed which can automatically test different kinds of altitude sensors.The system built standardization and modularization hardware platform with many bus instrument of multi-channels such as CPCI,GPIB,RS-232 and Ethernet,designed hierarchy and open software bottom structure with technologies such as DLL,ActiveX,COM,developed application program under VC++IDE environment which has the characteristics of convenient integration and configuration.The system can test all indexes(total press,static press etc.),and applies successfully.The system calibration ensured the reliability of testing result and the using efficiency of the test system,and the auto-test and parallel-test technology enhanced servicing efficiency and reduces servicing cost,and the design principle of universalization and expansibility resulted to conveniently extend tests for other homologous altitude sensor.The results show that the test system can complete real-time data acquisition and auto-test which do not require manual intervention,and the reliability and universalization are ensured,and also the accuracy,precision and efficiency of the measurement are significantly improved.