PL2458377T3 - Sposób i urządzenie do pomiaru masy cząsteczkowej gazu - Google Patents

Sposób i urządzenie do pomiaru masy cząsteczkowej gazu

Info

Publication number
PL2458377T3
PL2458377T3 PL10192972T PL10192972T PL2458377T3 PL 2458377 T3 PL2458377 T3 PL 2458377T3 PL 10192972 T PL10192972 T PL 10192972T PL 10192972 T PL10192972 T PL 10192972T PL 2458377 T3 PL2458377 T3 PL 2458377T3
Authority
PL
Poland
Prior art keywords
measuring
gas
molecular weight
molecular
weight
Prior art date
Application number
PL10192972T
Other languages
English (en)
Inventor
Neil Alexander Downie
Original Assignee
Air Products And Chemicals, Inc.
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 by Air Products And Chemicals, Inc. filed Critical Air Products And Chemicals, Inc.
Publication of PL2458377T3 publication Critical patent/PL2458377T3/pl

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
    • G01N9/002—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity using variation of the resonant frequency of an element vibrating in contact with the material submitted to analysis
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/02—Analysing fluids
    • G01N29/036—Analysing fluids by measuring frequency or resonance of acoustic waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/021—Gases
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/028—Material parameters
    • G01N2291/02818—Density, viscosity

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Biochemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Acoustics & Sound (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Measuring Fluid Pressure (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
PL10192972T 2010-11-29 2010-11-29 Sposób i urządzenie do pomiaru masy cząsteczkowej gazu PL2458377T3 (pl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP10192972.7A EP2458377B1 (en) 2010-11-29 2010-11-29 Method of, and apparatus for, measuring the molecular weight of a gas

Publications (1)

Publication Number Publication Date
PL2458377T3 true PL2458377T3 (pl) 2020-02-28

Family

ID=43769248

Family Applications (1)

Application Number Title Priority Date Filing Date
PL10192972T PL2458377T3 (pl) 2010-11-29 2010-11-29 Sposób i urządzenie do pomiaru masy cząsteczkowej gazu

Country Status (12)

Country Link
US (1) US9459191B2 (pl)
EP (1) EP2458377B1 (pl)
KR (2) KR101741872B1 (pl)
CN (2) CN108828065B (pl)
BR (1) BR112013013328B1 (pl)
CA (1) CA2817797C (pl)
CL (1) CL2013001503A1 (pl)
ES (1) ES2749877T3 (pl)
MX (1) MX2013005950A (pl)
PL (1) PL2458377T3 (pl)
TW (1) TWI463137B (pl)
WO (1) WO2012072596A1 (pl)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2458344B1 (en) * 2010-11-29 2018-03-14 Air Products And Chemicals, Inc. Method of, and apparatus for, measuring the true contents of a cylinder of gas under pressure
WO2014151475A1 (en) 2013-03-15 2014-09-25 Watkins Bobby G Ii Flow control and gas metering process
US9696248B2 (en) 2014-04-29 2017-07-04 Solon Manufacturing Company Gas insulated switchgear monitoring apparatus and method
HUE037830T2 (hu) 2014-05-02 2018-09-28 Air Prod & Chem Monitorozott égõfej
WO2016014053A1 (en) 2014-07-23 2016-01-28 Halliburton Energy Services, Inc. Thermal modulated vibrating sensing module for gas molecular weight detection
US9885646B2 (en) 2015-01-15 2018-02-06 Solon Manufacturing Company Gas measurement apparatus
US10444133B2 (en) * 2015-03-06 2019-10-15 National Institute For Materials Science Molecular weight measurement method and molecular weight measurement apparatus
DE102015117468A1 (de) 2015-10-14 2017-04-20 Endress+Hauser Flowtec Ag Verfahren zum Bestimmen von Eigenschaften eines kohlenwasserstoffhaltigen Gasgemisches und Vorrichtung dafür
DE102017117512A1 (de) * 2017-08-02 2019-02-07 Truedyne Sensors AG Verfahren zum Herstellen einer Vorrichtung zum Bestimmen einer Dichte eines Mediums
DE102017121918A1 (de) * 2017-09-21 2019-03-21 Truedyne Sensors AG Messrohr zum Führen eines Fluides und Messgerät ein solches Messrohr umfassend
TWI648528B (zh) 2017-11-23 2019-01-21 財團法人工業技術研究院 電阻式氣體感測器與其氣體感測方法
US11029284B2 (en) 2018-02-08 2021-06-08 South Dakota Board Of Regents Acoustic resonance chamber
US10928287B2 (en) 2018-08-09 2021-02-23 Air Products And Chemicals, Inc Method and apparatus for using a gas density sensor to measure and control gas mixture composition
CN109307849B (zh) * 2018-12-04 2022-05-17 中国科学院上海微系统与信息技术研究所 基于气压稳定的squid测量系统及稳定气压的方法
IT201900006274A1 (it) * 2019-04-23 2020-10-23 Nuovo Pignone Tecnologie Srl Disposizione con sensore e metodo per misurare sporcamento o erosione o corrosione, nonché macchina che monitorizza sporcamento o erosione o corrosione
CN110118703A (zh) * 2019-06-03 2019-08-13 浙江零壹智能电器研究院有限公司 一种气体密度传感器
CN112345405B (zh) * 2020-09-25 2022-02-18 西安电子科技大学 一种六氟化硫气体密度监测装置及方法
KR102784959B1 (ko) * 2022-10-27 2025-03-25 화진기업(주) 진동 석영원리 기반 sf6 기체 밀도센서
CN119164827B (zh) * 2024-08-02 2025-09-30 福建师范大学 基于压电或逆压电效应的高精度力电耦合谐振音叉传感器

Family Cites Families (100)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3612966A (en) 1969-11-03 1971-10-12 Dybel Frank Richard Piezoelectric transducer with improved sensing circuit
US3561832A (en) 1969-12-05 1971-02-09 Hewlett Packard Co Quartz resonator pressure transducer
GB1349257A (en) 1970-04-24 1974-04-03 Rotron Inc Mass flow and mass flow rate indication
US3879992A (en) * 1970-05-12 1975-04-29 California Inst Of Techn Multiple crystal oscillator measuring apparatus
US3902355A (en) 1972-07-31 1975-09-02 Gauting Gmbh Apparatebau Apparatus for the electronic-digital measurement of gas pressure
US4126049A (en) 1977-02-14 1978-11-21 Cotter Mitchell A System and method of measuring fluid pressure force
GB2027886B (en) 1978-08-14 1983-02-02 Solartron Electronic Group Transducer for sensing a parameter of a fluid
US4275393A (en) 1979-07-03 1981-06-23 Polyvend Inc. Method and apparatus for sensing pressure
JPS58151517A (ja) 1982-03-05 1983-09-08 Sumitomo Metal Ind Ltd 粉粒体の流量測定方法及び装置
FR2530338A1 (fr) 1982-07-13 1984-01-20 Asulab Sa Element sensible a la pression et capteur de pression en faisant application
FR2532047A1 (fr) 1982-08-19 1984-02-24 Asulab Sa Capteur de mesure muni d'un resonateur piezo-electrique compense en temperature
US4574639A (en) 1983-06-21 1986-03-11 Quartztronics, Inc. Pressure force measurement apparatus and method
US4526480A (en) 1983-06-21 1985-07-02 Quartztronics, Inc. Fluid density temperature measurement apparatus and method
US4644796A (en) 1983-06-21 1987-02-24 Quartztronics, Inc. Pressure measurement apparatus and method
DE3345750A1 (de) 1983-12-17 1985-06-27 Robert Bosch Gmbh, 7000 Stuttgart Druckaufnehmer mit sensorquarz
DE3407552A1 (de) * 1984-03-01 1985-09-05 Bodenseewerk Perkin Elmer Co Gasregeleinrichtung zur regelung der brenngas- und oxidanszufuhr zu einem brenner bei einem atomabsorptions-spektrometer
US4644804A (en) 1984-07-17 1987-02-24 Franz Rittmeyer Ag Quartz resonating force and pressure transducer
DE3529948A1 (de) 1985-08-22 1987-03-05 Nord Micro Elektronik Feinmech Messanordnung zum messen des luftdrucks, insbesondere zur luftdatenerfassung im flugzeug
US4680970A (en) 1986-01-31 1987-07-21 Yokogawa Hokushin Electric Corporation Apparatus for measuring pressure
JPS62184325A (ja) 1986-02-07 1987-08-12 Seiko Instr & Electronics Ltd 水晶式気体圧力計
US4713774A (en) 1986-03-13 1987-12-15 Phillips Petroleum Company Alkylation reactor quality control
JPS62218834A (ja) 1986-03-20 1987-09-26 Seiko Instr & Electronics Ltd 気体圧力計
US4734609A (en) * 1986-07-25 1988-03-29 Calogic Corporation Gas density transducer
DE3641842A1 (de) 1986-12-08 1988-06-16 Paul Prof Dr Leiderer Verfahren und vorrichtung zur druckmessung in einem gasfoermigen medium
US4802370A (en) 1986-12-29 1989-02-07 Halliburton Company Transducer and sensor apparatus and method
JPS6434547U (pl) * 1987-08-26 1989-03-02
US4938068A (en) 1988-09-28 1990-07-03 The Slope Indicator Co. Pressure transducer
CH687276A5 (de) 1989-01-23 1996-10-31 Balzers Hochvakuum Stimmgabelquarz-Manometer.
AT393416B (de) 1989-04-27 1991-10-25 Avl Verbrennungskraft Messtech Messverfahren zur bestimmung bzw. ueberwachung von mechanischen und/oder physikalischen groessen
JPH0368828A (ja) 1989-08-07 1991-03-25 Daishinku Co 圧力測定装置
US5056366A (en) * 1989-12-26 1991-10-15 Litton Systems, Inc. Piezoelectric vibratory rate sensor
EP0484569A1 (de) 1990-11-06 1992-05-13 Asea Brown Boveri Ag Vorrichtung zur Messung von Schwefelhexafluorid-Zersetzungsprodukten
US5136885A (en) 1991-04-05 1992-08-11 Tif Instruments, Inc. Quartz crystal pressure sensor
JPH0543044A (ja) 1991-08-07 1993-02-23 Murata Mach Ltd 無人搬送車の物品ガイド装置
US5235844A (en) * 1991-10-23 1993-08-17 Niagara Mohawk Power Corporation Multiple gas property sensor
JPH0543044U (ja) * 1991-11-12 1993-06-11 エヌオーケー株式会社 ガスセンサ
DE4218926A1 (de) 1992-06-10 1993-12-16 Asea Brown Boveri Vorrichtung zur Messung einer Gasdichte
JPH0610148A (ja) 1992-06-25 1994-01-18 Canon Inc 動圧流体軸受の溝加工方法
RU2061218C1 (ru) 1992-07-22 1996-05-27 Всероссийский научно-исследовательский институт природных газов и газовых технологий Устройство для определения свойств текучих сред
US5307683A (en) 1992-08-05 1994-05-03 Marathon Oil Company Transient temperature compensation for pressure gauges
US5307668A (en) 1992-10-05 1994-05-03 Badger Meter, Inc. Gas density meter and method
US5471882A (en) * 1993-08-31 1995-12-05 Quartzdyne, Inc. Quartz thickness-shear mode resonator temperature-compensated pressure transducer with matching thermal time constants of pressure and temperature sensors
US5476115A (en) 1994-03-10 1995-12-19 Praxair Technology, Inc. Automatic gas blending system
KR100374919B1 (ko) * 1994-11-07 2003-05-12 티코나 게엠베하 중합체센서및이의제조방법
JP3865813B2 (ja) 1995-12-01 2007-01-10 有限会社エーディ 流体混合装置
GB2316773B (en) 1996-06-12 1999-09-29 Gas Technology Canada Electronic gas regulator
JPH1010031A (ja) 1996-06-20 1998-01-16 Tokico Ltd 密度計
US5868159A (en) 1996-07-12 1999-02-09 Mks Instruments, Inc. Pressure-based mass flow controller
US5900534A (en) 1996-10-07 1999-05-04 Natural Fuels Corporation Densitometer
DE69735411T2 (de) * 1996-10-09 2006-09-07 Symyx Technologies, Inc., Santa Clara Infrarot-spektroskopie und abbildung von bibliotheken
US6062256A (en) 1997-02-11 2000-05-16 Engineering Measurements Company Micro mass flow control apparatus and method
DE19718520C1 (de) 1997-05-02 1998-10-01 Daimler Benz Ag Jalousierahmenanordnung
US6286361B1 (en) 1998-01-05 2001-09-11 Rolls-Royce Plc Method and apparatus for remotely detecting pressure, force, temperature, density, vibration, viscosity and speed of sound in a fluid
US6058761A (en) 1998-01-30 2000-05-09 Badger Meter, Inc. Measurement of relative density of combustible gases
AU2188899A (en) 1998-02-05 1999-08-23 Sang Gu Bang Alarm device for sensing gas quantity within pressure vessel
US5954089A (en) 1998-04-17 1999-09-21 Trw Inc. Electromagnetic regulator utilizing alternate valve operating modes for gas pressure regulation
US6266996B1 (en) 1998-10-06 2001-07-31 Trw Inc. Simple and inexpensive method and device for measuring concentration and rate of change of a crystal etchant gas, such as HF or DF gas
DE19901119B4 (de) 1999-01-14 2006-02-23 Abb Patent Gmbh Überwachungssystem für eine gasisolierte Hochspannungsschaltanlage
CA2354957C (en) * 2000-08-18 2011-10-04 Micro Motion, Inc. Coriolis mass flow controller
US6532822B1 (en) 2000-09-26 2003-03-18 Clark Davis Boyd Resonant torsion pendulum pressure sensor
JP2002122498A (ja) 2000-10-12 2002-04-26 Anelva Corp 含有ガスの圧力測定方法及び測定装置
GB2379983B (en) 2001-09-19 2004-11-17 Eric Atherton Transducer assembly
US7254983B2 (en) 2001-10-16 2007-08-14 Hera Usa Inc. Fuel gauge for hydrogen storage media
DE10232823B4 (de) * 2002-04-29 2004-08-12 Hydrotechnik Gmbh Dichtewächter für SF6-isolierte Hoch- oder Mittelspannungsanlagen
GB0227109D0 (en) * 2002-11-20 2002-12-24 Air Prod & Chem Volume flow controller
JP2004219386A (ja) 2003-01-17 2004-08-05 Vacuum Products Kk ２種混合気体の濃度測定装置
JP3744913B2 (ja) 2003-03-20 2006-02-15 株式会社オーバル 渦流量計センサ及び渦流量計
US7063097B2 (en) 2003-03-28 2006-06-20 Advanced Technology Materials, Inc. In-situ gas blending and dilution system for delivery of dilute gas at a predetermined concentration
JP4266850B2 (ja) 2004-02-25 2009-05-20 バキュームプロダクツ株式会社 ２成分混合気体の濃度測定装置
FR2888930B1 (fr) 2004-12-27 2007-08-31 Thales Sa Dispositfi de mesure a resonateur et procede mettant en oeuvre le dispositif
JP2006241516A (ja) 2005-03-03 2006-09-14 National Institute Of Advanced Industrial & Technology 混合ガスによる薄膜作製方法とその装置
US7454952B2 (en) 2005-05-02 2008-11-25 Thermo Fisher Scientific Inc. Method and apparatus for monitoring mercury in a gas sample
TWI552797B (zh) 2005-06-22 2016-10-11 恩特葛瑞斯股份有限公司 整合式氣體混合用之裝置及方法
US20100107735A1 (en) 2005-09-22 2010-05-06 Igor Pavlovsky Gas Sensor
CA2622383A1 (en) 2005-09-22 2007-04-05 Nano-Proprietary, Inc. Hydrogen sensor
JP3969442B2 (ja) 2005-09-26 2007-09-05 エプソントヨコム株式会社 圧力センサ
US20070089796A1 (en) 2005-10-26 2007-04-26 Tamara Electra Brown Medical air production systems
US20070186982A1 (en) 2006-02-10 2007-08-16 Cohen Joseph P Method for dispensing compressed gas
JP4798774B2 (ja) 2006-03-14 2011-10-19 株式会社山武 混合ガス供給システム
US7444878B1 (en) 2006-10-30 2008-11-04 Northrop Grumman Systems Corporation Resonant frequency pressure sensor
TWM334632U (en) 2007-11-02 2008-06-21 su-hua Dai Unitary gas pressure adjusting device
JP2009198472A (ja) 2008-02-25 2009-09-03 Mitsubishi Heavy Ind Ltd 高圧ガス流量計測装置及び流量計測方法
US20100269365A1 (en) 2008-05-16 2010-10-28 Miller Kenneth C System and Method for Alternating Fluid Flow
JP5093685B2 (ja) 2008-08-08 2012-12-12 独立行政法人産業技術総合研究所 プラズマ装置の供給ガス分解率測定装置
US7870791B2 (en) 2008-12-03 2011-01-18 Rosemount Inc. Method and apparatus for pressure measurement using quartz crystal
JP5457021B2 (ja) 2008-12-22 2014-04-02 東京エレクトロン株式会社 混合ガスの供給方法及び混合ガスの供給装置
FR2940624A1 (fr) 2008-12-30 2010-07-02 Akhea Dispositif melangeur d'au moins deux constituants gazeux
DE102009028006A1 (de) 2009-07-24 2011-01-27 Endress + Hauser Flowtec Ag Meßwandler vom Vibrationstyp sowie Meßgerät mit einem solchen Meßwandler
GB0917216D0 (en) 2009-10-01 2009-11-18 Johnson Matthey Plc Method and apparatus for determining a fluid density
DE102010043865A1 (de) 2009-11-30 2011-07-14 Horiba Stec Co., Ltd. Fluid device
CN101708437B (zh) 2009-12-31 2012-07-25 中煤科工集团重庆研究院 煤矿用复合混气装置
DE102010028475A1 (de) 2010-05-03 2011-11-03 Endress + Hauser Gmbh + Co. Kg Verfahren und Vorrichtung zur Bestimmung von Strömungseigenschaften eines Mediums in einer Rohrleitung
CN101881640A (zh) 2010-06-30 2010-11-10 重庆耐德正奇流量仪表有限公司 涡街质量流量计
CN202061563U (zh) 2011-03-15 2011-12-07 天津力冠能源科技有限公司 多气掺混混气机
CN202212112U (zh) 2011-08-12 2012-05-09 苏州苏净保护气氛有限公司 氮氢自动配比混合装置
ES2659146T3 (es) 2012-05-24 2018-03-14 Air Products And Chemicals, Inc. Método y aparato para proporcionar una mezcla de gases
PL2667159T3 (pl) 2012-05-24 2022-05-02 Air Products And Chemicals, Inc. Sposób oraz urządzenie dla mierzenia masowego natężenia przepływu gazu
EP2667176B1 (en) 2012-05-24 2015-02-25 Air Products And Chemicals, Inc. Apparatus for measuring the true contents of a cylinder of gas under pressure
PL2667160T3 (pl) 2012-05-24 2021-05-04 Air Products And Chemicals, Inc. Sposób i urządzenie do regulowania masowego natężenia przepływu gazu
EP2667161A1 (en) 2012-05-24 2013-11-27 Air Products and Chemicals, Inc. Method of, and apparatus for, measuring the flow rate of a gas

Also Published As

Publication number Publication date
KR20150115955A (ko) 2015-10-14
KR101741872B1 (ko) 2017-05-30
BR112013013328A2 (pt) 2018-05-08
US20140000342A1 (en) 2014-01-02
BR112013013328B1 (pt) 2020-10-20
TW201229514A (en) 2012-07-16
CL2013001503A1 (es) 2014-01-24
ES2749877T3 (es) 2020-03-24
CN108828065B (zh) 2021-09-17
TWI463137B (zh) 2014-12-01
CN108828065A (zh) 2018-11-16
WO2012072596A1 (en) 2012-06-07
US9459191B2 (en) 2016-10-04
KR101748062B1 (ko) 2017-06-15
CN103328965A (zh) 2013-09-25
EP2458377A1 (en) 2012-05-30
EP2458377B1 (en) 2019-07-31
CA2817797A1 (en) 2012-06-07
KR20130089668A (ko) 2013-08-12
CA2817797C (en) 2017-07-11
MX2013005950A (es) 2013-07-03

Similar Documents

Publication Publication Date Title
PL2458377T3 (pl) Sposób i urządzenie do pomiaru masy cząsteczkowej gazu
PL2458357T3 (pl) Sposób i urządzenie do mierzenia ciśnienia gazu
PL2458348T3 (pl) Sposób i urządzenie do mierzenia masowego natężenia przepływu
IL208921A0 (en) Pointer, position detection apparatus and position detection method
GB2506560B (en) Method and apparatus for measuring expended energy
GB201013896D0 (en) Apparatus and method for measuring distance
PL2458344T3 (pl) Sposób oraz urządzenie dla mierzenia rzeczywistej zawartości butli gazu pod ciśnieniem
EP2635505A4 (en) Packaging systems, methods and apparatus
LT2618919T (lt) Patobulinto dujų paskirstymo būdai ir aparatas
GB201108817D0 (en) Apparatus and method for detecting an approaching error condition
PL2667159T3 (pl) Sposób oraz urządzenie dla mierzenia masowego natężenia przepływu gazu
EP2633565A4 (en) An apparatus for spectrum sensing and associated methods
GB2479621B (en) Device for measuring the physical properties of gases
EP2615863A4 (en) METHOD, EQUIPMENT AND METHOD FOR MEASURING USER EXPERIENCE
EP2529926A4 (en) GAS BARRIER FILM, METHOD FOR PRODUCING THE SAME, AND DEVICE USING THE SAME
ZA201209420B (en) Method and apparatus for producing gas
ZA201208139B (en) Apparatus and method for gas tigtht secondary stave support
EP2558823A4 (en) Method and apparatus for determining gas flux
GB201009679D0 (en) Improved method and apparatus for measuring wind velocity
GB2483684B (en) Range determination apparatus and method
ZA201309217B (en) Method and device for obtaining gas products
EP2715319A4 (en) WAVE FRONT MEASURING DEVICE, WAVE FRONT MEASURING METHOD AND OBJECT MEASURING DEVICE
EP2540129A4 (en) Method and apparatus for spectrum sensing
EP2555009A4 (en) METHOD AND DEVICE FOR MEASURING THE DISTANCE BETWEEN NODES
GB201011212D0 (en) Gas storage apparatus