In this paper, current status of the development of luminophore-pendant temperature-sensitive paint of poly(l-(trimetylsilyl)phenyl-2-phenylacetylene) (PTMST) is discussed. PTMST uses poly(l-trimethylsilyl-l-propyne) (PTMSP) based polymer, which is known as one of the highest gas permeable polymers. Because of its high gas permeability and single luminescent compound, we can expect fast response of PTMST to the change in temperature and pressure of the test gas. We can also create PTMST-based two-color PSP for temperature-compensated pressure sensor by simply mixing pressure-sensitive luminophore in PTMST. In this paper, we mix platinum tetrakis (pentafluorophenyl) porphyrin (PtTFPP) as a pressure-sensitive luminophore to create PTMST-based two-color PSP (PtTFPP-PTMST). Spectral analysis shows that PtTFPP-PTMST provides temperature sensitive peak of PTMST (around 540 nm) and pressure sensitive peak of PtTFPP (around 650 nm), which can be separated by band-pass filters. We have calibrated PTMST from 100 K to 373 K as well as PtTFPP-PTMST from 120 K to 333 K to study the static characteristics of these sensors. PTMST provides the temperature sensitivity over the calibrated range, giving the maximum value of 2.72%/K at 100 K. PTMST itself is almost pressure independent. Pressure sensitivity of PtTFPP-PTMST is 0.26%/kPa at 293 K. PtTFPP-PTMST shows pressure sensitivity of 0.66%/kPa even at cryogenic temperature of 120 K. The unsteady characteristic of PtTFPP-PTMST is determined using a step response to a pressure change caused by a shock tube. The response time of PtTFPP-PTMST is on the order of milliseconds. A demonstration of PTMST at cryogenic measurement is shown by transition detection of PTMST-coated NACA64A012 model in JAXA 0.1m Transonic Cryogenic Wind Tunnel. PTMST detects a natural transition as well as a forced transition induced by a roughness at the leading edge at Mach 0.4, total temperature 200 K, and total pressure 120 kPa.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Development of luminophore-pendant temperature-sensitive paint and its application to pressure-sensitive paint for aerodynamic measurements


    Beteiligte:
    Iijima, Y. (Autor:in) / Sakaue, H. (Autor:in) / Morita, K. (Autor:in)


    Erscheinungsdatum :

    2007


    Format / Umfang :

    6 Seiten, 3 Quellen



    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch





    Pressure Sensitive Paint with Internal Temperature Sensing Luminophore

    Oglesby, D. / Simmons, K. / Demandate, C. G. et al. | British Library Conference Proceedings | 1996


    Development of Bi-Luminophore Pressure-Sensitive Paint Systems

    Mitsuo, Kazunori / Kurita, Mitsuru / Nakakita, Kazuyuki et al. | IEEE | 2007


    A Temperature Corrected Dual-Luminophore Pressure-Sensitive Paint System for Unsteady Pressure Measurements

    Long, S. / Gregory, J. / American Institute of Aeronautics and Astronautics | British Library Conference Proceedings | 2012