JP5866655B2 - 非接触気体温度計測方法及び装置 - Google Patents
非接触気体温度計測方法及び装置 Download PDFInfo
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- JP5866655B2 JP5866655B2 JP2011206808A JP2011206808A JP5866655B2 JP 5866655 B2 JP5866655 B2 JP 5866655B2 JP 2011206808 A JP2011206808 A JP 2011206808A JP 2011206808 A JP2011206808 A JP 2011206808A JP 5866655 B2 JP5866655 B2 JP 5866655B2
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- 238000000034 method Methods 0.000 title claims description 24
- 238000009529 body temperature measurement Methods 0.000 title claims description 11
- 239000007850 fluorescent dye Substances 0.000 claims description 49
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 12
- 238000005259 measurement Methods 0.000 claims description 10
- 239000002904 solvent Substances 0.000 claims description 8
- PYWVYCXTNDRMGF-UHFFFAOYSA-N rhodamine B Chemical compound [Cl-].C=12C=CC(=[N+](CC)CC)C=C2OC2=CC(N(CC)CC)=CC=C2C=1C1=CC=CC=C1C(O)=O PYWVYCXTNDRMGF-UHFFFAOYSA-N 0.000 claims description 7
- 239000007921 spray Substances 0.000 claims description 6
- 230000005284 excitation Effects 0.000 claims description 3
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 238000007865 diluting Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 18
- 238000000691 measurement method Methods 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 229910001120 nichrome Inorganic materials 0.000 description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 239000011521 glass Substances 0.000 description 3
- MYIOYATURDILJN-UHFFFAOYSA-N rhodamine 110 Chemical compound [Cl-].C=12C=CC(N)=CC2=[O+]C2=CC(N)=CC=C2C=1C1=CC=CC=C1C(O)=O MYIOYATURDILJN-UHFFFAOYSA-N 0.000 description 3
- 229940043267 rhodamine b Drugs 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 2
- 238000012800 visualization Methods 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 1
- 238000011088 calibration curve Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000004141 dimensional analysis Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- -1 for example Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000001499 laser induced fluorescence spectroscopy Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000700 radioactive tracer Substances 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
Landscapes
- Measuring Temperature Or Quantity Of Heat (AREA)
- Radiation Pyrometers (AREA)
Description
この計測法は、温度依存性の異なるローダミン系蛍光染料を組み合わせることで、可視化に用いる光源の強度ムラによる蛍光強度の非一様性の影響を打ち消すとともに可視化画像のS/N比を高めることができるため、画像処理手法の向上による温度計測精度の高精度化の余地が大きい。
温度計測対象となる気体に蛍光染料溶液を噴霧して液滴群とし、これに蛍光染料の励起波長域の波長を持つ光を照射し、蛍光染料の蛍光強度を測定し、その蛍光強度から温度を算出することを主要な特徴としている。
複数の温度依存性の異なる蛍光染料を用いることで、その相互の蛍光強度の比を用いて温度を算出することにより、単独の蛍光染料を用いるときよりも精度の高い測定が可能となる。
そこで、図1に示す測定装置を用いて、可視化用トレーサーとして2種類の蛍光染料(ローダミンB、ローダミン110)を溶解した液体を微粒化し、それをガラス製容器80(600mm×300mm×360mm)中の雰囲気に超音波噴霧器10を用いて、噴霧した。ガラス製容器80の中央に測定対象となる熱源としてニクロム線(直径0.5mm、長さ150mm)を設置し、これに1.4Vの電圧を与えることでニクロム線を加熱し(熱流束9.9×103W/m2)、容器内に浮力プルームを生じさせた。
図2の画像間演算により算出されたR/G画像より、ニクロム線より真上の位置に暗い(R/G値の低い)領域(図2中央部)が形成されていることが分かる。
Claims (6)
- 温度計測対象となる気体に、蛍光染料を溶媒に溶解した1種または複数種の蛍光染料溶液を噴霧して液滴群とし、これに蛍光染料の励起波長域の波長を持つ光を照射し、蛍光染料の蛍光強度を測定し、その蛍光強度から温度を算出することを特徴とする非接触気体温度計測方法。
- 前記複数種の蛍光染料溶液は、蛍光染料の温度依存性の違いにより選択され、測定した蛍光染料相互の蛍光強度の比から温度を算出することを特徴とする請求項1に記載の非接触気体温度計測方法。
- 前記蛍光染料溶液は、ローダミン系蛍光染料であることを特徴とする請求項1および2に記載の非接触気体温度計測方法。
- 前記蛍光染料溶液の希釈溶媒にグリコール系溶剤を用いることを特徴とする請求項1から3に記載の非接触気体温度計測方法。
- 前記蛍光染料溶液を噴霧するために超音波噴霧器を用いることを特徴とする請求項1から4のいずれかに記載の非接触気体温度計測方法。
- 温度計測対象となる気体に、蛍光染料を溶媒に溶解した蛍光染料溶液を液滴として噴霧する供給装置と、蛍光染料の蛍光強度分布を測定する測定装置と、予め測定された蛍光染料の蛍光強度と温度との関係に基づき前記測定装置によって測定された蛍光強度分布を温度分布に変換する変換装置と、を備えたことを特徴とする非接触気体温度計測装置。
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Families Citing this family (2)
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JP5977721B2 (ja) * | 2013-08-29 | 2016-08-24 | 日本電信電話株式会社 | 空間温度推定方法および装置 |
CN111289484A (zh) * | 2020-03-11 | 2020-06-16 | 哈尔滨工业大学(威海) | 一种基于罗丹明b荧光特性的冷表皮检测方法 |
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US4374328A (en) * | 1981-04-27 | 1983-02-15 | Gould Inc. | Photoluminescent indicator |
US5572016A (en) * | 1995-04-25 | 1996-11-05 | Martin Marietta Corporation | Photoluminescence built-in-test for optically initiated systems |
JPH09126837A (ja) * | 1995-10-27 | 1997-05-16 | Osaka Gas Co Ltd | 流体の流れの計測と該流体の温度の測定とを同時に行なう方法 |
JP2003313545A (ja) * | 2002-04-26 | 2003-11-06 | Keio Gijuku | 蛍光発光微粒子とその製造方法 |
JP5469483B2 (ja) * | 2010-03-02 | 2014-04-16 | 株式会社フォトロン | 流体解析装置および流体解析方法 |
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