Performance Validation
Evaluation of a sensing device across several spatial positions to characterize its response to gravity. A multi orientation sensor test involves rotating the hardware through a set of predefined angles, usually covering all six faces of a cube. This procedure reveals cross-axis sensitivity and misalignment between the sensor die and the package.
It provides the data necessary for a complete three-dimensional compensation matrix.
Geometric Alignment
Precision of the test fixture determines the validity of the resulting calibration. During a multi orientation sensor test, the mechanical stage must align the device axes perfectly with the local gravity vector.
Signal Consistency
Repeatability across multiple trials indicates the stability of the internal mounting. If the multi orientation sensor test shows different results for the same position over time, the device may suffer from thermal lag or mechanical fatigue. Consistent data allows for the calculation of a reliable scale factor.
Error Boundary
Budgeting for residual uncertainty requires an understanding of the noise floor of the equipment. A multi orientation sensor test identifies the limits of the sensor performance by isolating the deterministic errors from the random noise. This boundary defines the achievable accuracy for the end user in the field.
