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IE39628B1 - A method of testing the quality of spherical particles - Google Patents

A method of testing the quality of spherical particles

Info

Publication number
IE39628B1
IE39628B1 IE1535/74A IE153574A IE39628B1 IE 39628 B1 IE39628 B1 IE 39628B1 IE 1535/74 A IE1535/74 A IE 1535/74A IE 153574 A IE153574 A IE 153574A IE 39628 B1 IE39628 B1 IE 39628B1
Authority
IE
Ireland
Prior art keywords
particles
transducer
signals
fed
filter
Prior art date
Application number
IE1535/74A
Other versions
IE39628L (en
Original Assignee
Euratom
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 Euratom filed Critical Euratom
Publication of IE39628L publication Critical patent/IE39628L/en
Publication of IE39628B1 publication Critical patent/IE39628B1/en

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C17/00—Monitoring; Testing ; Maintaining
    • G21C17/06—Devices or arrangements for monitoring or testing fuel or fuel elements outside the reactor core, e.g. for burn-up, for contamination
    • G21C17/066—Control of spherical elements
    • 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
    • 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
    • G01N29/22—Details, e.g. general constructional or apparatus details
    • G01N29/228—Details, e.g. general constructional or apparatus details related to high temperature conditions
    • 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
    • G01N2291/023—Solids
    • G01N2291/0231—Composite or layered materials
    • 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
    • G01N2291/26—Scanned objects
    • G01N2291/265—Spherical objects
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Biochemistry (AREA)
  • Pathology (AREA)
  • Immunology (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Plasma & Fusion (AREA)
  • Acoustics & Sound (AREA)
  • High Energy & Nuclear Physics (AREA)
  • General Engineering & Computer Science (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Measuring Fluid Pressure (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)

Abstract

1482662 Acoustic inspection of particles EUROPEAN ATOMIC ENERGY COMMUNITY (EURATOM) 29 July 1974 [30 July 1973] 33339/74 Heading G1G The quality of spherical particles is tested by causing them to impact a transducer the respective electrical outputs of which are amplified then fed to a high-pass filter. The numbers of signals respectively fed to and passed by the filter are compared and the frequency spectrum of selected ones of the filtered signals is determined. In the Fig. 1 embodiment, nuclear reactor fuel particles are passed through a heating tube 2 to raise them to their normal operating temperature, then dropped on to transducer 3 which has electronic means to overcome the effect of internal acoustic reflection in the transducer. The transducer output signals are fed to filter 6 which passes only signals expected from defect-free particles. Counters 5, 7 establish the total number of particles and the number of defect-free particles respectively. The envelope and frequency spectrum of the transducer signals are analyzed using oscilloscope 9 to detect defects in, thickness of or faulty bonding between layers of material constituting the particles. Units 8, 10 and 11 are recording devices. [GB1482662A]
IE1535/74A 1973-07-30 1974-07-19 A method of testing the quality of spherical particles IE39628B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT51724/73A IT990064B (en) 1973-07-30 1973-07-30 SYSTEM FOR THE CONTROL OF BALLS MADE UP OF LAYERS OF DIFFERENT MATERIALS

Publications (2)

Publication Number Publication Date
IE39628L IE39628L (en) 1975-01-30
IE39628B1 true IE39628B1 (en) 1978-11-22

Family

ID=11275630

Family Applications (1)

Application Number Title Priority Date Filing Date
IE1535/74A IE39628B1 (en) 1973-07-30 1974-07-19 A method of testing the quality of spherical particles

Country Status (9)

Country Link
BE (1) BE817788A (en)
DE (2) DE2436243A1 (en)
DK (1) DK398774A (en)
FR (1) FR2239686B1 (en)
GB (1) GB1482662A (en)
IE (1) IE39628B1 (en)
IT (1) IT990064B (en)
LU (1) LU70597A1 (en)
NL (1) NL7410237A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3129224C1 (en) * 1981-07-24 1983-01-13 Kernforschungszentrum Karlsruhe Gmbh, 7500 Karlsruhe Differential pressure sensor
GB8309030D0 (en) * 1983-03-31 1983-05-11 Cawley P Testing of structures by impact
GB2143036B (en) * 1983-07-08 1986-10-15 Atomic Energy Authority Uk Ultrasonic resonance for detecting changes in elastic properties
FR2940444B1 (en) * 2008-12-24 2014-03-07 Areva Np NON-DESTRUCTIVE, CONTACTLESS CHARACTERIZATION METHOD OF A SUBSTANTIALLY SPHERIC MULTI-LAYER STRUCTURE AND ASSOCIATED DEVICE
CN102607760B (en) * 2012-03-31 2013-12-25 浙江理工大学 Direct measurement device for unsteady state force of loading and fixing particle swarm of shock wave

Also Published As

Publication number Publication date
FR2239686B1 (en) 1976-10-22
DE2436243A1 (en) 1975-02-13
FR2239686A1 (en) 1975-02-28
DK398774A (en) 1975-04-07
LU70597A1 (en) 1974-11-28
DE2436881A1 (en) 1975-03-13
BE817788A (en) 1974-11-18
IE39628L (en) 1975-01-30
IT990064B (en) 1975-06-20
GB1482662A (en) 1977-08-10
NL7410237A (en) 1975-02-03

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