Wind tunnel data acquisition possess challenging problem in terms of acquiring data at multiple sampling frequency, limited tunnel test time, requirement of signal conditioning, synchronization with the tunnel events, multi-mode tunnel operation and various categories of measurement quantities. Looking the requirements of CSIR-NAL 1.2m Trisonic wind tunnel, NI-LabVIEW based data acquisition system has been configured and enhanced LabVIEW based software program is implemented. In this paper an attempt is made to explain the concept and complexities involved in wind tunnel data acquisition system development. Typical force data from six component strain gauge balance and tunnel free stream data were acquired and monitored using the developed system. LabVIEW based single program is written to enable user-friendly data acquisition system to cater to the needs of the wind tunnel users. LabVIEW based code is developed to fulfill the complete data acquisition requirements like continuous data acquisition, step-mode data acquisition, system calibration mode, balance tare data, check calibration data, model natural frequency and transducer calibration through a single program. Present data acquisition system suits for any wind tunnel across the globe.
Enhancement in wind tunnel data acquisition system using NI-LabVIEW
ADVANCED TRENDS IN MECHANICAL AND AEROSPACE ENGINEERING: ATMA-2019 ; 2019 ; Bangalore, India
AIP Conference Proceedings ; 2316 , 1
2021-02-16
5 pages
Conference paper
Electronic Resource
English
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