GB971706A - Apparatus for continuous measurement of iron losses in a ferromagnetic strip - Google Patents
Apparatus for continuous measurement of iron losses in a ferromagnetic stripInfo
- Publication number
- GB971706A GB971706A GB2399961A GB2399961A GB971706A GB 971706 A GB971706 A GB 971706A GB 2399961 A GB2399961 A GB 2399961A GB 2399961 A GB2399961 A GB 2399961A GB 971706 A GB971706 A GB 971706A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sheet
- winding
- potentiometer
- thickness
- periodically
- 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
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/12—Measuring magnetic properties of articles or specimens of solids or fluids
- G01R33/123—Measuring loss due to hysteresis
Landscapes
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
971,706. Determining magnetic properties. W.H.SCHLIEKER,[trading as WALZWERK NEVIGES WILLY H. SCHLIEKER & CO. ]. July 3, 1961 [July 2, 1960], No. 23999/61. Heading G1N. In a system in which the iron losses in a steel sheet or band 11, Fig. 1, passed through a magnetising winding 8 are periodically measured by a wattful current meter connected to a second winding 9 arranged concentrically with the winding 8. The A.C. voltage G1 applied to the winding 8 is regulated automatically in dependence on the thickness of the sheet through the intermediary of the measuring device 16 in order to obtain constant induction in the sheet independent of thickness. The device 16 is adjustable in the direction of movement of the sheet in accordance with the speed of travel of the sheet and may be located within the windings 8, 9, the arrangement being such that the part of the sheet at which the thickness is measured is correctly located within the winding at the moment of measurement. Supply G1 is regulated in accordance with the thickness through a moving coil device 20, Fig. 3, the spindle of which controls the spindle of two potentiometers 27a, 27b, the former of which serves to regulate the voltage applied to winding 8 whilst the latter maintains constant the voltage applied to winding 43 of the meter. Each potentiometer is provided with a contact 28 which is brought periodically into contact with the potentiometer by a magnet 31. The travelling sheet 11 is tested periodically and each test is initiated by a time switch and controlled by a cyclically operated chain of relays. When the first relay of the chain is pulled up it locks and energizes magnet 31 to close contacts 28. A slowacting relay is also operated to disconnect from the instrument 20 a further potentiometer (not shown) the purpose of which is to maintain the pointer 22 and the potentiometer wipers at a predetermined position during the interval between successive tests. The loss meter may provide recorded information; a record sheet being driven synchronously with the metal sheet. The device may be arranged to sort the sheets according to their iron loss values.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES0028128 | 1960-07-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB971706A true GB971706A (en) | 1964-10-07 |
Family
ID=7479353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2399961A Expired GB971706A (en) | 1960-07-02 | 1961-07-03 | Apparatus for continuous measurement of iron losses in a ferromagnetic strip |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB971706A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3723859A (en) * | 1971-07-06 | 1973-03-27 | Gen Electric | Testing apparatus having improved means for measuring permeability and specific loss in a moving strip of metal |
| US3725778A (en) * | 1971-07-06 | 1973-04-03 | Gen Electric | Testing apparatus having improved means for maintaining a constant density of magnetic flux induced in a moving strip of metal |
-
1961
- 1961-07-03 GB GB2399961A patent/GB971706A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3723859A (en) * | 1971-07-06 | 1973-03-27 | Gen Electric | Testing apparatus having improved means for measuring permeability and specific loss in a moving strip of metal |
| US3725778A (en) * | 1971-07-06 | 1973-04-03 | Gen Electric | Testing apparatus having improved means for maintaining a constant density of magnetic flux induced in a moving strip of metal |
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