The Icing Research Tunnel at NASA Glenn follows the recommended practice for calibration outlined in SAE’s ARP5905. The calibration team has followed the schedule of a full calibration every five years with a check calibration done every six months following. The liquid water content of the IRT has maintained stability within the stated specifications of variation within +/- 10% of the curve fit equation generated from calibration data. Using past measurements and data trends, IRT characterization engineers wanted to develop methods for the ability to know when data were not within variation. Trends can be observed in the liquid water content measurement process by constructing statistical process control charts. This paper describes data processing procedures for the Multi-Element Sensor in the IRT, including collision efficiency corrections, canonical correlation analysis, process for rejection of data, and construction of control charts. Data are presented to display the control capability to meet defined liquid water content specifications of the IRT with the Multi-Element Sensor mounted in the center of the test section.


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    Title :

    Statistical Process Control and Analysis on the Water Content Measurements in NASA Glenn’s Icing Research Tunnel


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    International Conference on Icing of Aircraft, Engines, and Structures ; 2023



    Publication date :

    2023-06-15




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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