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.


Published in:
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT,, 56, 4, 1396-1402
Presented at:
IEEE Instrumentation and Measurement Technoloy Conference, Sorrento, FL, USA, August 4, 2007
Year:
2006
Publisher:
Institute of Electrical and Electronics Engineers
ISSN:
0018-9456
Keywords:
Laboratories:


Note: The status of this file is: EPFL only


 Record created 2011-02-10, last modified 2018-09-13

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