CA919775A - Pinhole detector - Google Patents

Pinhole detector

Info

Publication number
CA919775A
CA919775A CA090782A CA90782A CA919775A CA 919775 A CA919775 A CA 919775A CA 090782 A CA090782 A CA 090782A CA 90782 A CA90782 A CA 90782A CA 919775 A CA919775 A CA 919775A
Authority
CA
Canada
Prior art keywords
pinhole detector
pinhole
detector
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
CA090782A
Other languages
English (en)
Inventor
H. Bowen James
Flowers Edward
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.)
Union Carbide Corp
Original Assignee
Union Carbide Corp
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 Union Carbide Corp filed Critical Union Carbide Corp
Application granted granted Critical
Publication of CA919775A publication Critical patent/CA919775A/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
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G01N27/20—Investigating the presence of flaws
    • G01N27/205—Investigating the presence of flaws in insulating materials

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
CA090782A 1969-09-10 1970-08-14 Pinhole detector Expired CA919775A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US85657769A 1969-09-10 1969-09-10

Publications (1)

Publication Number Publication Date
CA919775A true CA919775A (en) 1973-01-23

Family

ID=25323989

Family Applications (1)

Application Number Title Priority Date Filing Date
CA090782A Expired CA919775A (en) 1969-09-10 1970-08-14 Pinhole detector

Country Status (3)

Country Link
JP (1) JPS5039547B1 (enrdf_load_stackoverflow)
CA (1) CA919775A (enrdf_load_stackoverflow)
GB (1) GB1323567A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5204632A (en) * 1989-07-05 1993-04-20 Leach Eddie D Apparatus and method for detecting leaks in surgical and examination gloves
US5351008A (en) * 1993-01-25 1994-09-27 Associated Enterprises, Inc. Portable and disposable device for detecting holes or leaks in a surgical or examination glove

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS517489A (ja) * 1974-07-05 1976-01-21 Fujikura Ltd Zetsuendensenhifukufuryobuno kenshutsuhoho
JPS5341460U (enrdf_load_stackoverflow) * 1976-09-14 1978-04-10
EP0847526A4 (en) * 1995-08-23 1999-02-10 Gregory Gormley METHOD AND DEVICE FOR TESTING AND MEASURING POROSITY AND ANOMALIES OF NON-CONDUCTIVE MATERIALS USING ELECTRON BEAMS
WO1999008853A1 (fr) * 1997-08-14 1999-02-25 Asahi Kasei Kogyo Kabushiki Kaisha Film aramide et son utilisation, son procede de fabrication, detection de trous d'epingle dans le film et dispositif de detection
US6707055B2 (en) * 2001-09-28 2004-03-16 Polaroid Corporation Method and apparatus for detecting pinhole defects in a dielectric layer
CN110794031B (zh) * 2019-11-13 2023-04-28 山东天海新材料工程有限公司 一种土工膜在线渗漏点检测装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3321703A (en) * 1963-12-09 1967-05-23 Northern Electric Co Method and apparatus for testing a dielectric material in the presence of a gas by moving the material with a sufficient velocity to ionize the gas

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5204632A (en) * 1989-07-05 1993-04-20 Leach Eddie D Apparatus and method for detecting leaks in surgical and examination gloves
US5351008A (en) * 1993-01-25 1994-09-27 Associated Enterprises, Inc. Portable and disposable device for detecting holes or leaks in a surgical or examination glove

Also Published As

Publication number Publication date
GB1323567A (en) 1973-07-18
JPS5039547B1 (enrdf_load_stackoverflow) 1975-12-17

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