Hand-held sensor for analyses of local distributions of magnetic fields and losses
The paper describes a novel sensor for non-destructive analyses of local field and loss distributions in laminated soft magnetic cores, such as transformer cores. It was designed for rapid information on comparative local degrees of inhomogeneity, e.g., for the estimation of local building factors....
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| Published in: | Journal of magnetism and magnetic materials Vol. 215-216; pp. 720 - 722 |
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| Main Authors: | , , |
| Format: | Journal Article |
| Language: | English |
| Published: |
08-09-1999
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| Online Access: | Get full text |
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| Summary: | The paper describes a novel sensor for non-destructive analyses of local field and loss distributions in laminated soft magnetic cores, such as transformer cores. It was designed for rapid information on comparative local degrees of inhomogeneity, e.g., for the estimation of local building factors. Similar to a magnifying glass with handle, the compact hand-held sensor contains extremely sharp needle electrodes for the detection of the induction vector B as well as double-field coils for the vector H. Losses P are derived from the Poynting law. Applied to inner- or also outer-core regions, the sensor yields instantaneous computer displays of local H, B, and P. Material studied: ZDKH 23 core. |
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| Bibliography: | SourceType-Scholarly Journals-2 ObjectType-Conference Paper-1 content type line 23 SourceType-Conference Papers & Proceedings-1 ObjectType-Feature-2 ObjectType-Article-3 |
| ISSN: | 0304-8853 |