EA201990359A1 - METHOD FOR REMOTE MEASUREMENT OF GAS CONCENTRATION IN THE ATMOSPHERE - Google Patents

METHOD FOR REMOTE MEASUREMENT OF GAS CONCENTRATION IN THE ATMOSPHERE

Info

Publication number
EA201990359A1
EA201990359A1 EA201990359A EA201990359A EA201990359A1 EA 201990359 A1 EA201990359 A1 EA 201990359A1 EA 201990359 A EA201990359 A EA 201990359A EA 201990359 A EA201990359 A EA 201990359A EA 201990359 A1 EA201990359 A1 EA 201990359A1
Authority
EA
Eurasian Patent Office
Prior art keywords
atmosphere
gas
cross
gas concentration
analytical
Prior art date
Application number
EA201990359A
Other languages
Russian (ru)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Publication of EA201990359A1 publication Critical patent/EA201990359A1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D5/00—Protection or supervision of installations
    • F17D5/02—Preventing, monitoring, or locating loss
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/59—Transmissivity
    • G01N21/61—Non-dispersive gas analysers

Landscapes

  • Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

Изобретение относится к области систем обеспечения безопасности при транспортировке и хранении газа и касается способа дистанционного измерения концентрации газа в атмосфере. Измерения осуществляются с помощью установленного на летательном аппарате газоанализатора, который включает в себя диодный управляемый лазер, аналитический и реперный каналы. Обработка измерительных и реперных сигналов включает в себя определение кросскорреляционной функции, определение автокорреляционной функции реперного канала и фильтрацию шума аналитического канала с использованием полученных функций. Далее определяют коэффициент кросскорреляции в зависимости от значений полученных функций и определяют концентрацию газа в аналитическом канале в зависимости от коэффициента кросскорреляции. Затем производят одновременное детектирование по различным линиям поглощения с обеспечением широкого динамического диапазона измеряемых концентраций газа в приземном слое атмосферы.The invention relates to the field of safety systems for transportation and storage of gas and relates to a method for remote measurement of gas concentration in the atmosphere. Measurements are carried out using a gas analyzer installed on the aircraft, which includes a controlled diode laser, analytical and reference channels. Processing of measuring and reference signals includes determining the cross-correlation function, determining the autocorrelation function of the reference channel, and filtering the noise of the analytical channel using the obtained functions. Next, the cross-correlation coefficient is determined depending on the values of the obtained functions and the gas concentration in the analytical channel is determined depending on the cross-correlation coefficient. Then, simultaneous detection is carried out along various absorption lines, providing a wide dynamic range of the measured gas concentrations in the surface layer of the atmosphere.

EA201990359A 2017-12-04 2017-12-06 METHOD FOR REMOTE MEASUREMENT OF GAS CONCENTRATION IN THE ATMOSPHERE EA201990359A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU2017142157A RU2679455C1 (en) 2017-12-04 2017-12-04 Gases in the atmosphere concentration remote measurement method
PCT/RU2017/000909 WO2019112459A1 (en) 2017-12-04 2017-12-06 Method for remote measurement of a concentration of gases in the atmosphere

Publications (1)

Publication Number Publication Date
EA201990359A1 true EA201990359A1 (en) 2019-10-31

Family

ID=65442370

Family Applications (1)

Application Number Title Priority Date Filing Date
EA201990359A EA201990359A1 (en) 2017-12-04 2017-12-06 METHOD FOR REMOTE MEASUREMENT OF GAS CONCENTRATION IN THE ATMOSPHERE

Country Status (4)

Country Link
CN (1) CN110392825A (en)
EA (1) EA201990359A1 (en)
RU (1) RU2679455C1 (en)
WO (1) WO2019112459A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112145976A (en) * 2020-08-12 2020-12-29 海隆石油工业集团有限公司 Detection system and method based on infrared gas cloud imaging and robot applying system
RU2758799C1 (en) * 2020-08-21 2021-11-02 Владимир Александрович Полянский Method for remote identification of radioactive cloud in atmosphere
CN112051219B (en) * 2020-08-21 2024-09-13 汉威科技集团股份有限公司 Novel handheld laser dangerous gas telemetry system
CN113567384A (en) * 2021-07-08 2021-10-29 浙江焜腾红外科技有限公司 Long-distance infrared gas sensor
RU208963U1 (en) * 2021-10-19 2022-01-24 Общество с Ограниченной Ответственностью "ГАСЕНС" OPTICAL DEVICE FOR MEASURING GAS CONCENTRATION
CN115628852B (en) * 2022-12-19 2023-03-10 山西讯潮科技有限公司 Multi-end centralized control linkage accurate leakage detection method and system based on TDLAS and holder
CN117491313B (en) * 2023-11-13 2024-05-28 南京市锅炉压力容器检验研究院 TDLAS-based field methane leakage space intelligent identification method

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5202570A (en) * 1990-03-27 1993-04-13 Tokyo Gas Co., Ltd. Gas detection device
RU2022251C1 (en) * 1991-12-29 1994-10-30 Малое предприятие "Межотраслевой научно-внедренческий центр "Экоприбор" Air pollution testing complex
GB0220914D0 (en) * 2002-09-10 2002-10-23 Qinetiq Ltd Lidar apparatus and method
EP1793220B1 (en) * 2005-12-01 2009-08-26 Pergam-Suisse Ag Mobile remote detection of fluids by a laser
US7400398B2 (en) * 2006-05-09 2008-07-15 Environmental Systems Products Holdings Inc. Remote emissions sensing system and method incorporating spectral matching by data interpolation

Also Published As

Publication number Publication date
WO2019112459A1 (en) 2019-06-13
CN110392825A (en) 2019-10-29
RU2679455C1 (en) 2019-02-11

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