In this research, a break-wire-like ablation recession and thermal sensor based on commercial, affordable thermocouples was designed, fabricated, and tested. The objective of this paper was to demonstrate the capability of this technique to provide real-time measurement of in-depth temperature and recession rates. The in situ ablation recession and thermal sensors were assembled on ablatives ranging from low to high densities ( 0.30 1.45    g / cc ). The different types of ablatives adapted for this study were phenolic impregnated carbon ablator, AVCOAT, carbon/phenolic, and carbon/carbon composites. These ablation recession and thermal sensors were tested under an oxidative hyperthermal environment at a heat flux in the range of 900 1000    W / cm 2 created by an oxyacetylene test bed. The results were very promising, demonstrating that the proposed approach can provide accurate recession rate data of a variety of ablatives. The sensing technology developed is very versatile and can be applied to the thermal protection systems of spacecraft, and can also be exploited on rocket nozzles. The key features of this sensor system are the use of inexpensive, commercially available thermocouples and industry-standard drilling techniques demonstrated on different ablatives.


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    Titel :

    In Situ Ablation Recession and Thermal Sensor for Thermal Protection Systems


    Beteiligte:
    Koo, Joseph H. (Autor:in) / Natali, Maurizio (Autor:in) / Lisco, Brian (Autor:in) / Yao, Eric (Autor:in) / Schellhase, Kurt (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    01.07.2018




    Medientyp :

    Aufsatz (Konferenz) , Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    A Versatile In-Situ Ablation Recession and Thermal Sensor Adaptable for Different Types of Ablatives

    Koo, Joseph H. / Natali, Maurizio / Lisco, Brian H. et al. | AIAA | 2015


    Development of an In-Situ Ablation Sensor for Thermal Protection Systems

    Yee, Colin M. / Ray, Matt / Tang, Felix et al. | AIAA | 2013


    A Versatile In-Situ Ablation Recession and Thermal Sensor Adaptable for Different Types of Ablatives (AIAA 2015-1122)

    Koo, Joseph H. / Natali, Maurizio H. / Lisco, Brian H. et al. | British Library Conference Proceedings | 2015