In this paper, current status of the development of luminophore-pendant temperature-sensitive paint of poly[1-(trimetylsilyl)phenyl-2-phenylacetylene] (PTMST) is discussed. PTMST uses poly(1-trimethylsilyl-1-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 540nm) and pressure sensitive peak of PtTFPP (around 650nm), which can be separated by band-pass filters. We have calibrated PTMST from 100K to 373K as well as PtTFPP-PTMST from 120K to 333K 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.
Development of Luminophore-Pendant Temperature-Sensitive Paint and its Application to Pressure-Sensitive Paint for Aerodynamic Measurements
2007-06-01
926233 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Pressure Sensitive Paint with Internal Temperature Sensing Luminophore
British Library Conference Proceedings | 1996
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