NL7411393A - Suction dredger spoil quality monitoring system - detects particle coarseness from noise made in travelling through pipe - Google Patents

Suction dredger spoil quality monitoring system - detects particle coarseness from noise made in travelling through pipe

Info

Publication number
NL7411393A
NL7411393A NL7411393A NL7411393A NL7411393A NL 7411393 A NL7411393 A NL 7411393A NL 7411393 A NL7411393 A NL 7411393A NL 7411393 A NL7411393 A NL 7411393A NL 7411393 A NL7411393 A NL 7411393A
Authority
NL
Netherlands
Prior art keywords
pipe
travelling
monitoring system
noise made
quality monitoring
Prior art date
Application number
NL7411393A
Other languages
Dutch (nl)
Original Assignee
J P Broekhoven B V
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 J P Broekhoven B V filed Critical J P Broekhoven B V
Priority to NL7411393A priority Critical patent/NL7411393A/en
Publication of NL7411393A publication Critical patent/NL7411393A/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H1/00—Measuring characteristics of vibrations in solids by using direct conduction to the detector
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
    • E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
    • E02F3/907—Measuring or control devices, e.g. control units, detection means or sensors
    • 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
    • G01N29/04—Analysing solids
    • G01N29/045—Analysing solids by imparting shocks to the workpiece and detecting the vibrations or the acoustic waves caused by the shocks
    • G01N29/046—Analysing solids by imparting shocks to the workpiece and detecting the vibrations or the acoustic waves caused by the shocks using the echo of particles imparting on a surface; using acoustic emission of particles
    • 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
    • G01N2291/024—Mixtures
    • G01N2291/02416—Solids in liquids

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Pathology (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Acoustics & Sound (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

The degree of coarseness of the particles passing through the dredger pipe is monitored by an acoustic device, typically a microphone (2) picking up the noise made by them as they travel along the pipe (6). The signals emitted by the microphone are transformed into signals fed to an audiometer. The sound generated can be picked up at a bend in the pipe, and the audiometer can be arranged to measure the sound where this exceeds the preset level for a particular particle size. The signals picked up and transformed can be audigraphically represented, and the output signal from the microphone can be coupled to the signals from the devices measuring the speed in the pipe and the concentration of material.
NL7411393A 1974-08-27 1974-08-27 Suction dredger spoil quality monitoring system - detects particle coarseness from noise made in travelling through pipe NL7411393A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL7411393A NL7411393A (en) 1974-08-27 1974-08-27 Suction dredger spoil quality monitoring system - detects particle coarseness from noise made in travelling through pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7411393A NL7411393A (en) 1974-08-27 1974-08-27 Suction dredger spoil quality monitoring system - detects particle coarseness from noise made in travelling through pipe

Publications (1)

Publication Number Publication Date
NL7411393A true NL7411393A (en) 1976-03-02

Family

ID=19821980

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7411393A NL7411393A (en) 1974-08-27 1974-08-27 Suction dredger spoil quality monitoring system - detects particle coarseness from noise made in travelling through pipe

Country Status (1)

Country Link
NL (1) NL7411393A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2612291A1 (en) * 1987-03-13 1988-09-16 Framatome Sa DEVICE AND METHOD FOR CONTROLLING THE EFFICIENCY OF PARTICLE HAMMING OF THE INTERIOR SURFACE OF A STEAM GENERATOR TUBE
WO2002039091A1 (en) * 2000-11-13 2002-05-16 Industrial Research Limited System and method for determining particle size in particulate solids
EP2978904A1 (en) * 2013-03-28 2016-02-03 IHC Systems B.V. Measurement device for performing measurement on a mixture of water and collected material

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2612291A1 (en) * 1987-03-13 1988-09-16 Framatome Sa DEVICE AND METHOD FOR CONTROLLING THE EFFICIENCY OF PARTICLE HAMMING OF THE INTERIOR SURFACE OF A STEAM GENERATOR TUBE
EP0284476A1 (en) * 1987-03-13 1988-09-28 Framatome Device and method for shot peening of the inner surface of a steam generator tube and for checking the efficiency of the shot peening
US4893490A (en) * 1987-03-13 1990-01-16 Framatome Device and process for controlling the effectiveness of particle hammering of the inner surface of a steam generator tube
WO2002039091A1 (en) * 2000-11-13 2002-05-16 Industrial Research Limited System and method for determining particle size in particulate solids
EP2978904A1 (en) * 2013-03-28 2016-02-03 IHC Systems B.V. Measurement device for performing measurement on a mixture of water and collected material
EP2978904B1 (en) * 2013-03-28 2023-12-06 IHC Holland IE B.V. Measurement device for performing measurement on a mixture of water and collected material

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Legal Events

Date Code Title Description
BV The patent application has lapsed