HP3054系统多路供电的技术改造

IMPROVEMENT OF SUPPLING SOURCE IN MULTIPLEXER ON HP3054 DATA ACQUISITION / CONTROL SYSTEM

用ＨＰ３０５４自动数据采集及控制系统来采集和测量多路现场信号时，各传感器的电源供给存在着问题，特别是当现场信号数量很大时，由于供电卡的输出端数量和功率的限制，往往只能给一部分传感器提供电源，需要增加供电卡的数量或者多个外部直流电源。通过对ＨＰ３０５４系统的数据采集卡和供电卡的线路进行改造，编制了相应的采集程序，实现了随着数据采集卡上采样点的切换，供电卡供电对象也随之改变。

In the process of measuring signals from field multiplexer singal by using HP3054 Data Acquisition/Control System, the trouble often result from the supply power of multiplexer transducers. When amount of field is very large,power assembly only supply a part of power for the transducers. Under this circumstance. increasing amount of power assembly should increase or use external DC source. Circuits of data acquisition assembly and power assembly was improved and corresponding acquisition system was programmed. A satisfactary result was obtained.