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FLUID MEASUREMENT METHOD, FLUID MEASUREMENT DEVICE, AND MEASUREMENT SYSTEM

外国特許コード F190009736
整理番号 (S2017-0677-N0)
掲載日 2019年4月25日
出願国 世界知的所有権機関(WIPO)
国際出願番号 2018JP019417
国際公開番号 WO 2019003715
国際出願日 平成30年5月18日(2018.5.18)
国際公開日 平成31年1月3日(2019.1.3)
優先権データ
  • 特願2017-127827 (2017.6.29) JP
発明の名称 (英語) FLUID MEASUREMENT METHOD, FLUID MEASUREMENT DEVICE, AND MEASUREMENT SYSTEM
発明の概要(英語) According to the present invention, a measurement method for visualizing the flow of a fluid (23) has: a preparation step for dissolving, in the fluid (23), a photochromic compound of which the amount of light absorption changes when the photochromic compound is irradiated with a transformation-generating light (31); a transformation-generating light irradiating step for irradiating the fluid (23) with the transformation-generating light (31) that causes photochromism; and a post-transformation image capturing step for capturing an image of the fluid (23) irradiated with the transformation-generating light. In the post-transformation image capturing step, a first image (B) is generated by capturing the image of the fluid (23) using first light in a first wavelength range, wherein the amount of light absorption of the first light changes due to the irradiation of the transformation-generating light (31).
従来技術、競合技術の概要(英語) BACKGROUND ART
In general, when mechanical motion, and sliding over each other to form a thin film between the operation member to be smooth such as the lubricant fluid is interposed. For example, piston, cylinder, a mechanically sliding bearing such as is required to operate smoothly, the sliding surface of the lubricating oil is placed. Piston, cylinder, such as a slide bearing in order to operate smoothly, the shape, the distance of the boundary surface, to optimize the quantity and quality of the lubricating oil is required.
Conventional, the piston-cylinder lubrication film between the shaft and to keep track of the state, the photochromic reaction substances in the oil using a technique for visualization of the flow has been proposed (see non-patent document 1). And a photochromic reaction, such as ultraviolet light by irradiating light having a specific material of the material to change the molecular structure of the dye, the absorption spectrum changes with the change of the phenomenon. That is, the molecular structure of the dye absorption spectra to change due to the absence of the material before, may be irradiated with light is not colored, the dye changes the molecular structure of the substance is irradiated with light of a specific wavelength region, is colored and absorbs light.
Non-Patent Document 1 a technique is described, the lubricating oil containing the photochromic compound, the photochromic compound to change the molecular structure of the dye (for example, ultraviolet light) light is irradiated to the engine oil, dye change the molecular structure of the imaging portion with a lapse of time. Here, the imaging of the lubricating oil, the illumination light for observation (for example, white light) is irradiated with is performed using the camera.
Observation illumination light measuring unit of the engine oil by applying the reflected light from the engine oil (strictly speaking the engine oil passes through the rear surface of the light reflected and from the engine) is obtained, this reflected light, an absorption spectrum changes by photochromism under the influence, in the wavelength region absorbed by the decrease in the intensity of the reflected light. Therefore, the reflected light intensity over time and results in the imaging, analyzing the photographed image can be seen that the oil flowing through the engine. Here, as an index indicating the amount of light absorption and the absorbance, the absorbance of the photographed image is performed using the analysis. Absorbance is obtained using the following equation.
Colored before the light intensity (intensity value of the captured image) Ibefore, before the light intensity of the colored Iafter, and the light intensity after the color, absorbance As the calculation formula, and the following equation. In addition, the LOG is the common logarithm. As=-LOG(Iafter/Ibefore)
  • 出願人(英語)
  • ※2012年7月以前掲載分については米国以外のすべての指定国
  • TOKAI UNIVERSITY EDUCATIONAL SYSTEM
  • 発明者(英語)
  • AZETSU Akihiko
  • KITAJIMA Ikkei
  • KURATSUJI Kazaki
  • OCHIAI Masayuki
国際特許分類(IPC)
指定国 National States: AE AG AL AM AO AT AU AZ BA BB BG BH BN BR BW BY BZ CA CH CL CN CO CR CU CZ DE DJ DK DM DO DZ EC EE EG ES FI GB GD GE GH GM GT HN HR HU ID IL IN IR IS JO JP KE KG KH KN KP KR KW KZ LA LC LK LR LS LU LY MA MD ME MG MK MN MW MX MY MZ NA NG NI NO NZ OM PA PE PG PH PL PT QA RO RS RU RW SA SC SD SE SG SK SL SM ST SV SY TH TJ TM TN TR TT TZ UA UG US UZ VC VN ZA ZM ZW
ARIPO: BW GH GM KE LR LS MW MZ NA RW SD SL SZ TZ UG ZM ZW
EAPO: AM AZ BY KG KZ RU TJ TM
EPO: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
OAPI: BF BJ CF CG CI CM GA GN GQ GW KM ML MR NE SN ST TD TG
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