Three-axis teslameter with integrated hall probe free from the planar hall effect

The first commercially available teslameter with a fully integrated 3-axis Hall probe is described. The Hall probe chip contains horizontal and vertical Hall elements, analogue electronics, and a synchronisation circuit. A horizontal Hall element measures the perpendicular component, and two vertical Hall devices measure the two in-plane components of a magnetic field. Current spinning in the Hall devices cancels offset, 1/f noise, and the planar Hall voltage. The analogue electronic module of the teslameter cancels the residual offset and compensates temperature dependence and non-linearity of the Hall voltages. The digital module provides A/D conversion and communication to a computer.


Presented at:
IMTC 2006 – Instrumentation and Measurement Technology Conference, Sorrento, Italy, April 24-27, 2006
Year:
2006
Keywords:
Laboratories:


Note: The status of this file is: EPFL only


 Record created 2011-02-10, last modified 2018-03-17

Preprint:
Download fulltext
PDF

Rate this document:

Rate this document:
1
2
3
 
(Not yet reviewed)