DE60233181D1 - Verfahren zur Messung der Laufzeit einer Ultraschallwelle und Gaskonzentrationssensor - Google Patents

Verfahren zur Messung der Laufzeit einer Ultraschallwelle und Gaskonzentrationssensor

Info

Publication number
DE60233181D1
DE60233181D1 DE60233181T DE60233181T DE60233181D1 DE 60233181 D1 DE60233181 D1 DE 60233181D1 DE 60233181 T DE60233181 T DE 60233181T DE 60233181 T DE60233181 T DE 60233181T DE 60233181 D1 DE60233181 D1 DE 60233181D1
Authority
DE
Germany
Prior art keywords
measuring
ultrasonic wave
gas concentration
transit time
concentration sensor
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
DE60233181T
Other languages
English (en)
Inventor
Keigo Banno
Hideki Ishikawa
Yoshikuni Sato
Noboru Ishida
Takafumi Oshima
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Niterra Co Ltd
Original Assignee
NGK Spark Plug Co Ltd
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 NGK Spark Plug Co Ltd filed Critical NGK Spark Plug Co Ltd
Application granted granted Critical
Publication of DE60233181D1 publication Critical patent/DE60233181D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • G01N29/36—Detecting the response signal, e.g. electronic circuits specially adapted therefor
    • G01N29/40—Detecting the response signal, e.g. electronic circuits specially adapted therefor by amplitude filtering, e.g. by applying a threshold or by gain control
    • 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
    • G01N29/024—Analysing fluids by measuring propagation velocity or propagation time of acoustic waves
    • 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
    • G01N29/36—Detecting the response signal, e.g. electronic circuits specially adapted therefor
    • G01N29/38—Detecting the response signal, e.g. electronic circuits specially adapted therefor by time filtering, e.g. using time gates
    • 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
    • G01N2291/0217—Smoke, combustion 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
    • G01N2291/02809—Concentration of a compound, e.g. measured by a surface mass change

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Acoustics & Sound (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
DE60233181T 2001-02-19 2002-02-18 Verfahren zur Messung der Laufzeit einer Ultraschallwelle und Gaskonzentrationssensor Expired - Lifetime DE60233181D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001041680A JP2002243536A (ja) 2001-02-19 2001-02-19 超音波伝播時間測定方法及びガス濃度センサ

Publications (1)

Publication Number Publication Date
DE60233181D1 true DE60233181D1 (de) 2009-09-17

Family

ID=18904082

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60233181T Expired - Lifetime DE60233181D1 (de) 2001-02-19 2002-02-18 Verfahren zur Messung der Laufzeit einer Ultraschallwelle und Gaskonzentrationssensor

Country Status (4)

Country Link
US (1) US6886412B2 (de)
EP (1) EP1233266B1 (de)
JP (1) JP2002243536A (de)
DE (1) DE60233181D1 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7850924B2 (en) * 2002-05-22 2010-12-14 Thermo Fisher Scientifiic Inc. User notification of tank type for trigas (CO2/O2/N2 systems)
US20080129500A1 (en) * 2003-11-10 2008-06-05 Omron Corporation Processing Device And Object Detection Device
US7523640B2 (en) * 2005-08-01 2009-04-28 Baker Hughes Incorporated Acoustic fluid analyzer
US9109433B2 (en) 2005-08-01 2015-08-18 Baker Hughes Incorporated Early kick detection in an oil and gas well
US8794062B2 (en) * 2005-08-01 2014-08-05 Baker Hughes Incorporated Early kick detection in an oil and gas well
US7614302B2 (en) * 2005-08-01 2009-11-10 Baker Hughes Incorporated Acoustic fluid analysis method
DE102005059062B4 (de) * 2005-12-08 2009-08-27 Continental Automotive Gmbh Vorrichtung zur Bestimmung eines Massenstroms
DE102008033058A1 (de) * 2008-07-14 2010-02-04 Continental Automotive Gmbh Brennkraftmaschine und Verfahren zum Betreiben einer solchen Brennkraftmaschine
US8583387B2 (en) 2010-06-04 2013-11-12 Ssi Technologies, Inc. Ultrasonic level, on-board diagnostic assessment
US9366133B2 (en) 2012-02-21 2016-06-14 Baker Hughes Incorporated Acoustic standoff and mud velocity using a stepped transmitter
JP7012497B2 (ja) * 2017-10-04 2022-01-28 上田日本無線株式会社 伝搬時間測定装置、気体濃度測定装置および伝搬時間測定プログラム

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4022058A (en) * 1975-08-07 1977-05-10 Brown Alvin E Apparatus for determining the arrival time of alternating signals
US4515021A (en) * 1983-07-29 1985-05-07 Panametrics, Inc. Intervalometer time measurement apparatus and method
US4596133A (en) * 1983-07-29 1986-06-24 Panametrics, Inc. Apparatus and methods for measuring fluid flow parameters
US4538469A (en) 1983-07-29 1985-09-03 Panametrics, Inc. Integrated threshold arming method and apparatus
JPH0572527A (ja) 1991-09-13 1993-03-26 Casio Comput Co Ltd 液晶表示装置
JPH09318644A (ja) * 1996-05-27 1997-12-12 Osaka Gas Co Ltd 超音波流速測定方法
JP3495935B2 (ja) * 1999-01-11 2004-02-09 日本特殊陶業株式会社 ガス濃度センサの使用方法及びガス濃度センサの制御装置
JP2000206099A (ja) * 1999-01-11 2000-07-28 Ngk Spark Plug Co Ltd ガス濃度センサ
US6308572B1 (en) * 1999-02-15 2001-10-30 Ngk Spark Plug Co., Ltd. Gas concentration sensor
JP2001124745A (ja) * 1999-08-16 2001-05-11 Ngk Spark Plug Co Ltd 超音波伝播時間測定方法、ガス圧力測定方法、ガス流量測定方法、及びガスセンサ

Also Published As

Publication number Publication date
US6886412B2 (en) 2005-05-03
EP1233266B1 (de) 2009-08-05
JP2002243536A (ja) 2002-08-28
EP1233266A2 (de) 2002-08-21
EP1233266A3 (de) 2005-08-03
US20020117003A1 (en) 2002-08-29

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition