AK09919

AK09919 is a 3-axis magnetometer used as the magnetic-field companion sensor in RVC4 systems. It measures geomagnetic field strength on X/Y/Z axes and is intended to complement the main 6-axis IMU when heading or magnetic reference is needed.

Vendor documentation: AK09919 datasheet

Overview

Spec	Value
Axes	3
Physical sensors	Magnetometer
Magnetometer	Yes
Sensor-side derived outputs	None
Absolute heading on-sensor	No

Orientation

Use the drawing below as the vendor-axis reference for AK09919 magnetic-field detection directions.

Native silicon characteristics

Signal	Full-scale options	Sensitivity / quantization	Noise density	Native ODR
Magnetometer	+-4912 uT typ measurement range	0.15 uT/LSB typ	Vendor datasheet reports sensitivity rather than accel/gyro-style noise density	5 / 10 / 20 / 50 / 100 Hz

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AK09919View as Markdown

Overview

Orientation

Native silicon characteristics

AK09919