Scheduled System Maintenance:
On May 6th, system maintenance will take place from 8:00 AM - 12:00 PM ET (12:00 - 16:00 UTC). During this time, there may be intermittent impact on performance. We apologize for the inconvenience.
By Topic

Optical readouts of cantilever bending designed for high magnetic field application

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

The purchase and pricing options are temporarily unavailable. Please try again later.
4 Author(s)
Keplinger, F. ; Inst. of Ind. Electron. & Mater. Sci., Vienna Univ. of Technol., Austria ; Kvasnica, S. ; Hauser, H. ; Grossinger, R.

A single-fiber optical readout of cantilever deflection caused by Lorentz force was investigated. A good agreement of the optical near field model with the measured nonlinear characteristic was found. The ac-excitation mode of the cantilever is preferable, due to the uncontrollable static light reflections in a single-fiber setup. The presented sensor design seems suitable for a measurement range of the magnetic flux density of at least 10 mT to 50T with moderate excitation current amplitudes. Two-fiber setups may reduce the background light and could enable dc excitation but require smaller offset between cantilever and fiber axis.

Published in:

Magnetics, IEEE Transactions on  (Volume:39 ,  Issue: 5 )