Abstract
We present a magneto-optical sensor based on the Faraday effect. It allows the non-destructive and even contactless testing of electrical current distributions or permanent magnetizations by measuring one component of the resulting magnetic flux density. Due to its compact size, the sensor can be as close as 6μm to the object of interest. In this paper, we present an application where magnetic structures with a structure size of 50μm with remanent magnetizations in the range of 0 mT to 500 mT are to be resolved within 1mT. The setup is then optimized to achieve this goal. Furthermore, we aim to determine what should generally be taken into account when implementing a Faraday magnetometer. This allows estimating the potential for a wide range of applications.
| Translated title of the contribution | Components of the measurement uncertainty of a Faraday rotation magnetometer |
|---|---|
| Original language | German (Austria) |
| Pages (from-to) | 544-558 |
| Number of pages | 15 |
| Journal | e&i Elektrotechnik und Informationstechnik |
| Volume | 139 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - Jul 2022 |
Fields of science
- 202012 Electrical measurement technology
- 202014 Electromagnetism
- 202036 Sensor systems
- 202 Electrical Engineering, Electronics, Information Engineering
- 202027 Mechatronics
- 202037 Signal processing
- 103021 Optics
JKU Focus areas
- Digital Transformation