Analysis, design and optimization of compact ultra-high sensitivity coreless induction coil sensors
Abstract
For contactless inductive flow tomography we require a compact magnetic field measurement system with a dynamic range of 5 orders of magnitude in order to detect the amplitude and the phase of an alternating magnetic field of 1 mT strength with a precision better than 5 nT and a phase error no larger than 10-2 deg. In some applications a static magnetic field of about 300 mT is also present, resulting in a total dynamic range of 7 orders of magnitude.
- Publication:
-
Measurement Science and Technology
- Pub Date:
- June 2020
- DOI:
- 10.1088/1361-6501/ab7166
- Bibcode:
- 2020MeScT..31f5902R
- Keywords:
-
- magnetic field measurement;
- induction coil;
- gradiometric coil;
- contactless inductive flow tomography