FR2310548A1 - Thickness gauge for coating on ferrous base - uses magnetic rod and magnet with standard block at end - Google Patents
Thickness gauge for coating on ferrous base - uses magnetic rod and magnet with standard block at endInfo
- Publication number
- FR2310548A1 FR2310548A1 FR7514090A FR7514090A FR2310548A1 FR 2310548 A1 FR2310548 A1 FR 2310548A1 FR 7514090 A FR7514090 A FR 7514090A FR 7514090 A FR7514090 A FR 7514090A FR 2310548 A1 FR2310548 A1 FR 2310548A1
- Authority
- FR
- France
- Prior art keywords
- magnet
- coating
- thickness gauge
- magnetic rod
- standard block
- 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.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
- G01B7/06—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness
- G01B7/10—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness using magnetic means, e.g. by measuring change of reluctance
- G01B7/105—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness using magnetic means, e.g. by measuring change of reluctance for measuring thickness of coating
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The gauge measures the thickness of non-ferrous coatings (a) on a ferrous base (b). The coatings may be electrolytic, paints, plastic films, etc. A rod (2) made of magnetic material has one end (2a) in contact with the coating to be tested and the other end (2b) connected to a mobile magnet (3). A fixed magnetic mass (5) is subjected to the attraction of a magnet (3). An etalon gap separates the magnet from the mass. The magnet may be separated from the mass by a non-magnetic skin (4) forming a gap whose value is predetermined as a function of the thickness of the coating to be tested.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7514090A FR2310548A1 (en) | 1975-05-06 | 1975-05-06 | Thickness gauge for coating on ferrous base - uses magnetic rod and magnet with standard block at end |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7514090A FR2310548A1 (en) | 1975-05-06 | 1975-05-06 | Thickness gauge for coating on ferrous base - uses magnetic rod and magnet with standard block at end |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2310548A1 true FR2310548A1 (en) | 1976-12-03 |
Family
ID=9154895
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7514090A Withdrawn FR2310548A1 (en) | 1975-05-06 | 1975-05-06 | Thickness gauge for coating on ferrous base - uses magnetic rod and magnet with standard block at end |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2310548A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2323522A1 (en) * | 1975-09-11 | 1977-04-08 | Semperit Ag | METHOD AND DEVICE FOR AUTOMATIC AND CONTINUOUS DETERMINATION AND MARKING OF ANOMALIES IN THE DIAMETER OF AN ENDLESS CYLINDRICAL BODY |
-
1975
- 1975-05-06 FR FR7514090A patent/FR2310548A1/en not_active Withdrawn
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2323522A1 (en) * | 1975-09-11 | 1977-04-08 | Semperit Ag | METHOD AND DEVICE FOR AUTOMATIC AND CONTINUOUS DETERMINATION AND MARKING OF ANOMALIES IN THE DIAMETER OF AN ENDLESS CYLINDRICAL BODY |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |