Modular Automated Test System for Advanced Propulsion and Satellite Subsystems Using NI PXI Data Acquisition Technology

Both in terms of software and hardware, propulsion test facilities frequently struggle with issues related to measurement accuracy, test control, and cost-efficiency. This paper presents a solution based on National Instruments PXI hardware and LabVIEW software, integrated to address these issues. Developed for the evaluation of a 2U propulsion system in a 6U CubeSat project at Khalifa University’s Small Satellites Laboratory, the system reduces development costs while enhancing performance, accuracy, real-time processing, and synchronization. The modular design of LabVIEW allows easy customization across various testing scenarios, extending its applicability beyond propulsion testing to automated tests for subsystems like attitude control, GPS, and star trackers. The paper also discusses the selection of PXI chassis, controllers, and modules for analog, digital, counter, timer, and specialized measurements. Practical case studies highlight the system's versatility, underscoring its importance in propulsion and satellite subsystem testing.