Datasheet

Gravity as a Calibration Reference

Acceleration can be measured in units of gravitational force or "G", where 1G represents the

gravitational pull at the surface of the earth. Gravity is a relatively stable force and makes a

convenient and reliable calibration reference for surface-dwelling earthlings.

Calibration Method:

To calibrate the sensor to the gravitational reference, you need to determine the sensor

output for each axis when it is precisely aligned with the axis of gravitational pull. Laboratory

quality calibration uses precision positioning jigs. The method described here is simple and

gives surprisingly good results with just a block of wood.

Mount the Sensor:

FIrst mount the sensor securely to a block or a box. The size is not important, as long as all