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GAS ANALYSIS DEVICE USING LASER BEAM AND GAS ANALYSIS METHOD 新技術説明会

外国特許コード F180009329
整理番号 S2016-0288-C0
掲載日 2018年1月24日
出願国 世界知的所有権機関(WIPO)
国際出願番号 2016JP087949
国際公開番号 WO 2017119283
国際出願日 平成28年12月20日(2016.12.20)
国際公開日 平成29年7月13日(2017.7.13)
優先権データ
  • 特願2016-000897 (2016.1.6) JP
発明の名称 (英語) GAS ANALYSIS DEVICE USING LASER BEAM AND GAS ANALYSIS METHOD 新技術説明会
発明の概要(英語) This gas analysis device is provided with: a laser source which outputs a laser beam; an irradiation unit which irradiates, from multiple directions, a laser beam from the laser source onto a measurement region that contains the gas to be measured; multiple light receivers which receive the laser beam transmitted through the measurement region and output an electric signal corresponding to the intensity of the received laser beam; and an analysis device which, on the basis of the electric signals outputted from the light receivers, analyzes the physical state of the gas to be measured. The analysis device configures a function (for example, a two-dimensional polynomial f(X,Y)) that indicates the physical state (concentration, temperature, etc.) of the gas to be measured at least in the measurement region, and measures the physical state of the gas to be measured by using measurement values obtained from the electric signals outputted from the light receivers to determine the coefficients (ak-i,i) of the terms included in the function.
従来技術、競合技術の概要(英語) BACKGROUND ART
In recent years, global warming, the depletion of fossil fuel, from the viewpoint of preventing environmental pollution and the like, and in various fields of global environmental conservation concerns effective utilization of energy and, therefore a variety of researches have been made.
A technique in such an environment, such as a burner combustion phenomenon in an engine or combustion of the structure, the transient behavior may be important to elucidate a detail of the present invention. In recent years, in the combustion gas temperature and concentration distribution of a time series with high response as a means for measuring, by utilizing the semiconductor laser absorption measurement technology has been developed.
Is generally specific to the species absorption wavelength of gas molecules by the property to absorb infrared radiation and the absorption amount of temperature, using a concentration-dependent measurement method. The incident light is uniform absorption medium of the optical path length (target gas) passing through the, the intensity of incident light (Iλ 0) of the transmission light (Iλ) the ratio of the intensities (Iλ /Iλ 0) can be determined by finding, the target gas concentration and temperature can be measured.
Using the semiconductor laser absorption method utilizing the nature of the gas to be measured (concentration and temperature) as a technique for detecting Patent Document 1 is known a technique as disclosed.
  • 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
  • TOKUSHIMA UNIVERSITY
  • 発明者(英語)
  • DEGUCHI, Yoshihiro
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 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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