DE69407068D1 - System zur akustischen Messung der Rohrlänge - Google Patents

System zur akustischen Messung der Rohrlänge

Info

Publication number
DE69407068D1
DE69407068D1 DE69407068T DE69407068T DE69407068D1 DE 69407068 D1 DE69407068 D1 DE 69407068D1 DE 69407068 T DE69407068 T DE 69407068T DE 69407068 T DE69407068 T DE 69407068T DE 69407068 D1 DE69407068 D1 DE 69407068D1
Authority
DE
Germany
Prior art keywords
pipe length
acoustic measurement
acoustic
measurement
pipe
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 - Fee Related
Application number
DE69407068T
Other languages
English (en)
Other versions
DE69407068T2 (de
Inventor
Takanori Ito
Hideo Tai
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.)
Tokyo Gas Co Ltd
Original Assignee
Tokyo Gas 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 Tokyo Gas Co Ltd filed Critical Tokyo Gas Co Ltd
Publication of DE69407068D1 publication Critical patent/DE69407068D1/de
Application granted granted Critical
Publication of DE69407068T2 publication Critical patent/DE69407068T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B17/00—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/52004—Means for monitoring or calibrating
    • G01S7/52006—Means for monitoring or calibrating with provision for compensating the effects of temperature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S367/00—Communications, electrical: acoustic wave systems and devices
    • Y10S367/902—Speed of sound compensation

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
DE69407068T 1993-02-03 1994-02-02 System zur akustischen Messung der Rohrlänge Expired - Fee Related DE69407068T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5039532A JP3048284B2 (ja) 1993-02-03 1993-02-03 音響式管路長測定システムの音速校正装置

Publications (2)

Publication Number Publication Date
DE69407068D1 true DE69407068D1 (de) 1998-01-15
DE69407068T2 DE69407068T2 (de) 1998-03-26

Family

ID=12555661

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69407068T Expired - Fee Related DE69407068T2 (de) 1993-02-03 1994-02-02 System zur akustischen Messung der Rohrlänge

Country Status (4)

Country Link
US (1) US5432752A (de)
EP (1) EP0610073B1 (de)
JP (1) JP3048284B2 (de)
DE (1) DE69407068T2 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5754495A (en) * 1996-05-13 1998-05-19 Halliburton Energy Services, Inc. Method for acoustic determination of the length of a fluid conduit
GB0913924D0 (en) * 2009-08-11 2009-09-16 Rolls Royce Plc Developments in or relating to drum rotors
GB2517411A (en) * 2013-07-17 2015-02-25 Atmos Wave Ltd Monitoring pipelines

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2313149A1 (de) * 1973-03-16 1974-09-19 Transfer Technik Gmbh Verfahren und einrichtung zum ulraschall-laengenmessen
US4234942A (en) * 1978-07-24 1980-11-18 D & W International, Inc. Apparatus for measuring the length of pipe and other hollow members
US4241430A (en) * 1979-01-08 1980-12-23 Douglas J. Kayem Method and apparatus for determining the length of tubular members
US4584676A (en) * 1982-03-15 1986-04-22 Measurement Systems, Inc. Method of and apparatus for pipe length measurement
US4494224A (en) * 1982-07-16 1985-01-15 Morrell David J Pipe measuring method and apparatus
US4935884A (en) * 1988-04-28 1990-06-19 Champlin Electronics, Inc. Sonic pipe length detector
US4930350A (en) * 1988-10-06 1990-06-05 Robert Bode Acoustical length measurement
DE3939328A1 (de) * 1989-11-28 1991-08-29 Mpv Mess Und Prueftechnik Vogt Verfahren und vorrichtung zur abstandsmessung in gasen und fluessigkeiten mittels ultraschall
US5195059A (en) * 1991-03-27 1993-03-16 Tokyo Gas Co., Ltd. Acoustic pipe length measuring apparatus

Also Published As

Publication number Publication date
US5432752A (en) 1995-07-11
EP0610073B1 (de) 1997-12-03
EP0610073A1 (de) 1994-08-10
JP3048284B2 (ja) 2000-06-05
DE69407068T2 (de) 1998-03-26
JPH06230120A (ja) 1994-08-19

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee