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Magnetic and electrical characteristics of permalloy thin tape bobbin cores
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Niedra, Janis M. Schwarze, Gene E. Wieserman, William R. |
| Copyright Year | 2005 |
| Description | The core loss, that is, the power loss, of a soft ferromagnetic material is a function of the flux density, frequency, temperature, excitation type (voltage or current), excitation waveform (sine, square, etc.) and lamination or tape thickness. In previously published papers we have reported on the specific core loss and dynamic B-H loop results for several polycrystalline, nanocrystalline, and amorphous soft magnetic materials. In this previous research we investigated the effect of flux density, frequency, temperature, and excitation waveform for voltage excitation on the specific core loss and dynamic B-H loop. In this paper, we will report on an experimental study to investigate the effect of tape thicknesses of 1, 1/2, 1/4, and 1/8-mil Permalloy type magnetic materials on the specific core loss. The test cores were fabricated by winding the thin tapes on ceramic bobbin cores. The specific core loss tests were conducted at room temperature and over the frequency range of 10 kHz to 750 kHz using sine wave voltage excitation. The results of this experimental investigation will be presented primarily in graphical form to show the effect of tape thickness, frequency, and magnetic flux density on the specific core loss. Also, the experimental results when applied to power transformer design will be briefly discussed. |
| File Size | 294062 |
| Page Count | 17 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20060004125 |
| Archival Resource Key | ark:/13960/t5w71f45m |
| Language | English |
| Publisher Date | 2005-12-05 |
| Access Restriction | Open |
| Subject Keyword | Permalloys Trademark Electric Potential Flux Density Ferromagnetic Materials Polycrystals Magnetic Materials Frequency Ranges Magnetic Properties Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
