VXI数据采集系统的建立及其应用

Establishment and application of VXI data acquisition system

在液氧/煤油发动机试验中,需要根据测量精度、被测参数的类型、采样速率等技术指标进行数据采集系统的选型、配套,完成对温度、压力、流量转速、推力、真空压力等众多参数的测量。主要介绍了利用VXI数据采集系统完成各参数的测量任务,包括系统的建立,解决系统调试中出现的问题,同时介绍了VXI数据采集系统在发动机故障诊断紧急关机系统中的应用。

In the LOX/kerosene rocket testing, the technical index on measurement accuracy and sampling speed needs the selection and complement of data acquisition system to measure the multi parameters including the temperature, preassure, flow rotating speed, thrust and vaccum pressure. This article introduces the completion of each parameter measurement by use of VXI data acquisition system, the system establishment and resolution of system debugging. It also presents the application of VXI data acquisition system in the emergency cut-off of engine fault diagnosis system.