CA998436A - Flaw detection system using microwaves - Google Patents

Flaw detection system using microwaves

Info

Publication number
CA998436A
CA998436A CA193,234A CA193234A CA998436A CA 998436 A CA998436 A CA 998436A CA 193234 A CA193234 A CA 193234A CA 998436 A CA998436 A CA 998436A
Authority
CA
Canada
Prior art keywords
microwaves
detection system
flaw detection
flaw
detection
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
Application number
CA193,234A
Inventor
Don U. Bennion
Leonard R. West
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.)
INDUSTRIAL DEVELOPMENT AND DESIGN
Original Assignee
INDUSTRIAL DEVELOPMENT AND DESIGN
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 INDUSTRIAL DEVELOPMENT AND DESIGN filed Critical INDUSTRIAL DEVELOPMENT AND DESIGN
Application granted granted Critical
Publication of CA998436A publication Critical patent/CA998436A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N22/00—Investigating or analysing materials by the use of microwaves or radio waves, i.e. electromagnetic waves with a wavelength of one millimetre or more
    • G01N22/02—Investigating the presence of flaws

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (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)
  • Geophysics And Detection Of Objects (AREA)
CA193,234A 1973-03-26 1974-02-22 Flaw detection system using microwaves Expired CA998436A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00344932A US3810005A (en) 1973-03-26 1973-03-26 Flaw detection system using microwaves

Publications (1)

Publication Number Publication Date
CA998436A true CA998436A (en) 1976-10-12

Family

ID=23352728

Family Applications (1)

Application Number Title Priority Date Filing Date
CA193,234A Expired CA998436A (en) 1973-03-26 1974-02-22 Flaw detection system using microwaves

Country Status (2)

Country Link
US (1) US3810005A (en)
CA (1) CA998436A (en)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3919882A (en) * 1974-02-11 1975-11-18 Donald R Wells Tire inspection apparatus and method
US4123702A (en) * 1976-02-13 1978-10-31 Ilmari Kinanen Method for classifying and measuring of timbers
GB1593173A (en) * 1976-12-10 1981-07-15 Hoechst Ag Apparatus for indicating the moisture content of sheetlike samples
GB2081448B (en) * 1977-05-02 1984-03-14 Hampson Alfred A Electromagnetic noncontacting measuring apparatus
US4234844A (en) * 1977-05-02 1980-11-18 Near Field Technology Co. Electromagnetic noncontacting measuring apparatus
AT368734B (en) * 1981-01-09 1982-11-10 Tann Papier METHOD AND DEVICE FOR REGULATING PERFORATING DEVICES BY MEANS OF ELECTRICAL SPARK ARROW FOR STRIPS MADE OF PAPER OR THE LIKE.
US4514680A (en) * 1983-01-28 1985-04-30 A.Ahlstrom Osakeyhtio Flaw detection system using microwaves
US4639669A (en) * 1983-09-26 1987-01-27 Lockheed Missiles & Space Company, Inc. Pulsed electromagnetic nondestructive test method for determining volume density of graphite fibers in a graphite-epoxy composite material
US4571581A (en) * 1984-03-05 1986-02-18 General Electric Company Apparatus and method for production line leakage testing of microwave oven cavities
US5619143A (en) * 1989-02-14 1997-04-08 Commonwealth Scientific And Industrial Research Organisation Microwave scanning apparatus
US5384543A (en) * 1992-11-09 1995-01-24 Martin Marietta Energy Systems, Inc. Portable microwave instrument for non-destructive evaluation of structural characteristics
US5585732A (en) * 1995-06-07 1996-12-17 Mississippi State University Detector for heterogeneous materials
US6025724A (en) * 1997-11-20 2000-02-15 Malcam Ltd. Device and method for determining the moisture content of packaged material
US5845529A (en) * 1995-07-18 1998-12-08 Malcam Ltd. Device and method for determining the moisture content of material
US5859535A (en) * 1997-02-12 1999-01-12 The United States Of America As Represented By The Secretary Of The Navy System for determining size and location of defects in material by use of microwave radiation
US6111415A (en) * 1998-01-09 2000-08-29 Malcam Ltd. Device and method for determining the moisture content of a bulk material
US6172510B1 (en) 1998-12-30 2001-01-09 The United Sates Of America As Represented By The Secretary Of The Navy System for detection of flaws by use of microwave radiation
US8525705B1 (en) 2010-05-20 2013-09-03 The United States Of America As Represented By The Secretary Of The Navy Apparatus and method for detecting defects in solid rocket motor propellant
US8120522B2 (en) * 2010-11-30 2012-02-21 General Electric Company System and method for inspecting a wind turbine blade
US9194843B2 (en) 2013-03-15 2015-11-24 Digital Wind Systems, Inc. Method and apparatus for monitoring wind turbine blades during operation
US9453500B2 (en) 2013-03-15 2016-09-27 Digital Wind Systems, Inc. Method and apparatus for remote feature measurement in distorted images
US9330449B2 (en) 2013-03-15 2016-05-03 Digital Wind Systems, Inc. System and method for ground based inspection of wind turbine blades
US9395337B2 (en) 2013-03-15 2016-07-19 Digital Wind Systems, Inc. Nondestructive acoustic doppler testing of wind turbine blades from the ground during operation

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE564022A (en) * 1957-01-16
FR1234764A (en) * 1959-05-19 1960-10-19 Trt Telecom Radio Electr Improvement in methods and devices for signaling that an emissive body has a temperature above a limit temperature
US3119017A (en) * 1960-03-22 1964-01-21 Charles G Kaehms Infrared hotbox detection by measuring the difference in radiated energy from two areas of the journal
US3060421A (en) * 1960-09-22 1962-10-23 Allis Chalmers Mfg Co Microwave gauge
US3340400A (en) * 1964-06-11 1967-09-05 Api Instr Company Dual channel flaw detector having phase comparison feedback for automatic balancing
US3482234A (en) * 1965-06-22 1969-12-02 Bendix Corp Signal comparator for minimizing nuisance failure alarms
US3534260A (en) * 1967-04-26 1970-10-13 Charles W E Walker Method and apparatus for measuring moisture content in sheet materials using a frequency modulation free microwave energy beam

Also Published As

Publication number Publication date
US3810005A (en) 1974-05-07

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