PENGEMBANGAN SENSOR MAGNETIK MAGNETORESISTIF (MR) UNTUK APLIKASI KOMPAS ELEKTRONIK

Abstract

Today the much needed electronic equipment that can enable people to perform the activity. Making thecompass using the magnetic field sensor is a sensor HMC5883L. The tool has been tested and calibratedusing a standard calibrator magnetic field that is Teslameter FH51. In determining the direction the sensoris connected to the Arduino Uno HMC5883L which is connected to a PC by running softwareapplications based on Visual C ++. HMC5883L sensors rely magnetoresistif effect with linearitysensitivity to measure weak magnetic field of the earth. HMC5883L a field sensor element which isequipped with a set / reset and compensation coils are integrated. In addition to the sensor element, signalconditioning unit and a unit determining the direction is also necessary to establish an electronic compass.The main function of the unit is a signal conditioning and amplification of the sensor signal offsetcompensation. Both compensation techniques can be implemented only by controlling an integrated set /reset and compensation coils are HMC5883L. Calibration technique is also associated with the disorder,declination and inclination shown. Will eventually produce a complete compass system.

Keywords : Microkontroller magnetic field sensor, Arduino, ATmega328.