GB892383A - Method of testing the variations in density of the explosive filling along a length of fuse or detonator cord - Google Patents

Method of testing the variations in density of the explosive filling along a length of fuse or detonator cord

Info

Publication number
GB892383A
GB892383A GB21324/59A GB2132459A GB892383A GB 892383 A GB892383 A GB 892383A GB 21324/59 A GB21324/59 A GB 21324/59A GB 2132459 A GB2132459 A GB 2132459A GB 892383 A GB892383 A GB 892383A
Authority
GB
United Kingdom
Prior art keywords
filling
density
variations
explosive
cord
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
GB21324/59A
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.)
Dynamit Nobel AG
Original Assignee
Dynamit Nobel AG
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 Dynamit Nobel AG filed Critical Dynamit Nobel AG
Publication of GB892383A publication Critical patent/GB892383A/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
    • G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
    • G01N27/80—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating mechanical hardness, e.g. by investigating saturation or remanence of ferromagnetic material

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)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)

Abstract

892,383. Determining physical dimensions by electric tests. DYNAMIT NOBEL A.G. June 22, 1959 [Sept. 6, 1958], No. 21324/59. Class 37. [Also in Group XXI] Variations in the density of the explosive filling of a detonator or fuse cord is tested by mixing the filling with a substance having a high magnetic permeability, for example highfrequency iron powder, and testing variations in the density of the filling by a magnetic method. The substance of high magnetic permeability is mixed with the explosive up to 5% by weight, based on the total weight of the explosive filling. The cord under test is moved through the coil of a high-frequency oscillator so as to vary its frequency. The output of the oscillator is then converted into D.C. voltage by a discriminator so that an indication of variations in the density of the cord filling can be read directly on a meter. Additionally, an automatic marking of discontinuities in the filling may be effected.
GB21324/59A 1942-03-18 1959-06-22 Method of testing the variations in density of the explosive filling along a length of fuse or detonator cord Expired GB892383A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB892383X 1942-03-18

Publications (1)

Publication Number Publication Date
GB892383A true GB892383A (en) 1962-03-28

Family

ID=32893904

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21324/59A Expired GB892383A (en) 1942-03-18 1959-06-22 Method of testing the variations in density of the explosive filling along a length of fuse or detonator cord

Country Status (1)

Country Link
GB (1) GB892383A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2200214A (en) * 1985-10-18 1988-07-27 Crostack Horst Artur A process and device for electrical non-destructive material testing

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2200214A (en) * 1985-10-18 1988-07-27 Crostack Horst Artur A process and device for electrical non-destructive material testing
GB2200214B (en) * 1985-10-18 1991-03-06 Crostack Horst Artur Improvements in or relating to a process and device for non-destructive testing or measuring

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