A6.3 - Testing of Thin Permanent Magnets at Higher Frequencies
- AMA Conferences 2015
2015-05-19 - 2015-05-21
- Proceedings SENSOR 2015
- A6 - Material Characterization
- D. Perchtold, M. Kaltenbacher - Vienna University of Technology, Wien (Austria), H. Husstedt - Deutsches Hörgeräte Institut GmbH, Lübeck (Germany)
- 142 - 146
In this work, we present an application-oriented method to characterize permanent magnets at higher frequencies. The main idea is to identify the permeability and the remanence of a sample without measuring the complete hysteresis curve. Therefore, the remanence is determined by using a magnetic equivalent circuit, whereas the permeability can be measured directly. This requires more quantities to be measured but results in less field intensity needed. Several aspects of the design of the measurement setup and the evaluation of the acquired data are presented.