METHOD OF CALIBRATING ACCELEROMETRIC THREE-AXIS INCLINOMETER Russian patent published in 2016 - IPC G01C25/00 

FIELD: test and measurement equipment.

SUBSTANCE: invention relates to metrological equipment - calibrated inclinometers based on three-axis accelerometer. Method suggests measurement of gravity acceleration vector projections $$\overline{\text{G}}$$ on the axis of the accelerometer during its rotation around two axes, each time in four orthogonal positions. Static error is determined based on measurement results of each axis and the ratio of coefficients of sensitivity along two pairs of axes. When using inclinometer the accelerometer is set on investigated object, gravity acceleration vector projections are measured $$\overline{\text{G}}$$ on the axis of the accelerometer, compensating for their static error, normalizing differences in sensitivity axes of accelerometer and calculating object inclination angles by simple relationships relative to gravity acceleration vector $$\overline{\text{G}}$$ .

EFFECT: technical result consists in simplification of the method of calibrating accelerometric three-axis inclinometer.

1 cl, 3 dwg