Instruction Manual

MicroMag User Manual – March 2010 Page 5 of 23
2 Introduction
Thank you for purchasing PNI Sensor Corporation’s MicroMag magneto-inductive
sensing module. Whether you purchased the MicroMag2 2-axis sensing module or the
MicroMag3 3-axis sensing module, we’re sure you’ll be happy with your purchase. If you do
have issues with your device, please feel free to contact us.
The MicroMag is an integrated magnetic field sensing module combining PNI’s patented
SmartSens magneto-inductive (MI) sensors with the PNI ASIC. Designed primarily to aid in
the evaluation and prototyping of PNI’s SmartSens technology, the MicroMag board
contains connectors, test points, option solder jumpers and extra support circuits to expedite
evaluation. The microprocessor-compatible SPI interface allows easy access to the
MicroMag’s measurement parameters and resulting field measurement data.
PNI’s MicroMag benefits include low power consumption, large signal noise immunity
under all conditions, and a large dynamic range. Measurements are very stable over
temperature and inherently free from offset drift. Also, the MicroMag features software-
configurable resolution, sample rate and field measurement range. These advantages
make PNI’s MicroMag not only the choice for prototyping high volume SmartSens solutions,
but also for lower volume applications that require a complete solution.
For more information on PNI’s magneto-inductive technology please refer to PNI’s
Magneto-Inductive Technology Overview (http://www.pnicorp.com/support/articles). For
information on the PNI ASIC and Sen-XY & Sen-Z sensors at the core of the MicroMag
module, please refer to their respective manuals (http://www.pnicorp.com/support/manuals).