JPS5757265A - Method for measuring flow trace speed - Google Patents

Method for measuring flow trace speed

Info

Publication number
JPS5757265A
JPS5757265A JP13343480A JP13343480A JPS5757265A JP S5757265 A JPS5757265 A JP S5757265A JP 13343480 A JP13343480 A JP 13343480A JP 13343480 A JP13343480 A JP 13343480A JP S5757265 A JPS5757265 A JP S5757265A
Authority
JP
Japan
Prior art keywords
light
intensity
fine grains
speed
flow
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.)
Granted
Application number
JP13343480A
Other languages
Japanese (ja)
Other versions
JPS6138824B2 (en
Inventor
Shohei Noda
Masayoshi Murata
Yasuhiko Sato
Hisao Watanabe
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries 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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP13343480A priority Critical patent/JPS5757265A/en
Publication of JPS5757265A publication Critical patent/JPS5757265A/en
Publication of JPS6138824B2 publication Critical patent/JPS6138824B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
    • G01P5/001—Full-field flow measurement, e.g. determining flow velocity and direction in a whole region at the same time, flow visualisation

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)

Abstract

PURPOSE:To measure the speed and the direction even in turbulent flow, by suspending fine grains in fluid, varying the intensity of light from a light source during the exposing time of photographing, and discriminating the starting and terminating points of the traces of the suspended fine grains. CONSTITUTION:The light 12 from the light source 11 is transmitted, through a transmitted light intensity modifier 16, expanded to form a plane shape by a lens 13, and illuminates a flowing place to be measured. The fine grains are suspended in the flowing place, and the flow traces of the grains are photographed by a cemera 15. When the light intensity at the vicinity of the end of exposure is increased than that at the start of the exposure by modifying the intensity of the illuminating light in the exposing time of the camera, the flow trace of the terminating point is photographed more brightly than that at the starting point. Thus the speed and the direction can be measured at the same time, and the measurement can be performed even in the turbulent flow.
JP13343480A 1980-09-25 1980-09-25 Method for measuring flow trace speed Granted JPS5757265A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13343480A JPS5757265A (en) 1980-09-25 1980-09-25 Method for measuring flow trace speed

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13343480A JPS5757265A (en) 1980-09-25 1980-09-25 Method for measuring flow trace speed

Publications (2)

Publication Number Publication Date
JPS5757265A true JPS5757265A (en) 1982-04-06
JPS6138824B2 JPS6138824B2 (en) 1986-09-01

Family

ID=15104678

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13343480A Granted JPS5757265A (en) 1980-09-25 1980-09-25 Method for measuring flow trace speed

Country Status (1)

Country Link
JP (1) JPS5757265A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0485383A1 (en) * 1989-03-13 1992-05-20 The Board of Trustees for the University of Illinois Electro-optical method and system for determining the direction of motion in double-exposure velocimetry by shifting an optical image field
WO1995001572A1 (en) * 1993-07-01 1995-01-12 Bodo Ruck Process and device for generating graphic real-time directional information for detected object tracks
WO2018193704A1 (en) * 2017-04-20 2018-10-25 ソニー株式会社 Signal processing system, signal processing device, and signal processing method

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6540261B2 (en) * 2015-06-18 2019-07-10 株式会社ジェイテクト High-speed imaging system and high-speed imaging method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0485383A1 (en) * 1989-03-13 1992-05-20 The Board of Trustees for the University of Illinois Electro-optical method and system for determining the direction of motion in double-exposure velocimetry by shifting an optical image field
WO1995001572A1 (en) * 1993-07-01 1995-01-12 Bodo Ruck Process and device for generating graphic real-time directional information for detected object tracks
US5812248A (en) * 1993-07-01 1998-09-22 Tsi Corporation Process and device for generating graphical real-time directional information for detected object traces
WO2018193704A1 (en) * 2017-04-20 2018-10-25 ソニー株式会社 Signal processing system, signal processing device, and signal processing method
JPWO2018193704A1 (en) * 2017-04-20 2020-02-27 ソニー株式会社 Signal processing system, signal processing device, and signal processing method

Also Published As

Publication number Publication date
JPS6138824B2 (en) 1986-09-01

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