• 제목/요약/키워드: Immerged body in water

검색결과 1건 처리시간 0.016초

열감지인광온도계를 이용한 물에 잠긴 물체 표면 온도장의 비접촉식 측정에 관한 연구 (A Study on Non-contact Surface Temperature Field Measurement of a Body Immerged in Water Using Thermographic Phosphor Thermometry)

  • 박윤성;차이타오;김경천
    • 한국가시화정보학회지
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    • 제18권3호
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    • pp.61-68
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    • 2020
  • Thermographic phosphor (TP) thermometry is a noncontact optical measurement method and has been applied in many fields such as combustion and heat transfer. However, due to the limitation of bonding technology and measurement method, most TP thermometry studies were conducted only on the air environment with water-soluble binders. In this paper, a temperature measurement technology in water using TP is proposed by coatings of manganese activated magnesium fluorogermanate (Mg4FGeO6:Mn4+, MFG) with Polydimethylsiloxane (PDMS). Four MFG-PDMS coatings with different thicknesses were prepared. The lifetime of MFG was not affected by the thickness of the coating as a result of the experiment and analysis of phosphor intensity using a photomultiplier tube. To measure the surface temperature field of an immerged body in water, a cylinder-type cartridge heater was coated with MFG doped PDMS. Transient surface temperature field was successfully measured even the initial temperature is higher than the boiling point of water.