FR834256A - Device for the magnetic verification of building material using the direct current pulse method - Google Patents
Device for the magnetic verification of building material using the direct current pulse methodInfo
- Publication number
- FR834256A FR834256A FR834256DA FR834256A FR 834256 A FR834256 A FR 834256A FR 834256D A FR834256D A FR 834256DA FR 834256 A FR834256 A FR 834256A
- Authority
- FR
- France
- Prior art keywords
- direct current
- building material
- current pulse
- pulse method
- magnetic verification
- 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
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
- G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
- G01N27/83—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws by investigating stray magnetic fields
- G01N27/84—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws by investigating stray magnetic fields by applying magnetic powder or magnetic ink
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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE834256X | 1937-05-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR834256A true FR834256A (en) | 1938-11-16 |
Family
ID=6760630
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR834256D Expired FR834256A (en) | 1937-05-04 | 1938-02-25 | Device for the magnetic verification of building material using the direct current pulse method |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR834256A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3961244A (en) * | 1974-09-11 | 1976-06-01 | Minchom Magnetic Systems Limited | Magnetizing means for a magnetic flaw detector including a charging and discharging circuit |
-
1938
- 1938-02-25 FR FR834256D patent/FR834256A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3961244A (en) * | 1974-09-11 | 1976-06-01 | Minchom Magnetic Systems Limited | Magnetizing means for a magnetic flaw detector including a charging and discharging circuit |
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