Electronic Compass Design using
KMZ51 and KMZ52
Application Note
AN00022
Philips Semiconductors
2
Abstract
The KMZ51 and KMZ52 from Philips Semiconductors are magnetic field sensors, dedicated to compass
applications. Both sensors rely on the magnetoresistive effect and provide the required sensitivity and linearity
to measure the weak magnetic field of the earth. While the KMZ51 is a single axis field sensor, the KMZ52
comprises a two-dimensional field sensor, as it is required for a compass, within one package. Both devices are
equipped with integrated set/reset and compensation coils. These coils allow to apply the flipping technique for
offset cancellation and the electro-magnetic feedback technique for elimination of the sensitivity drift with
temperature.
Besides the sensor elements, a signal conditioning unit and a direction determination unit are required to build
Hola Pendexgabo, bajate la nota de aplicacion desl sitio de Philips... aqui en Argentina no pude conseguir dichos sensores....
http://www.semiconductors.philips.com/cgi-bin/search/search.ply aqui tienes justamente lo que buscabas..
http://www.robot-electronics.co.uk/htm/cmps3doc.shtml
Norberto