Correction Array
Mathematical array translates raw multi-axis sensor outputs into corrected physical units. A calibration matrix accounts for sensitivities and cross-axis interference within a multi-degree of freedom measurement system. It defines the relationship between the measured vector and the true physical quantity.
Error Correction
Linear algebra techniques apply the coefficients to neutralize misalignment and gain errors. Because each sensor axis may respond slightly to forces from other directions, the calibration matrix uses off-diagonal elements to cancel these interactions. This process ensures that a load applied in one direction does not produce a false reading in another.
Computational Requirement
Digital signal processors execute the multiplication of the input vector by the matrix in real time. The firmware stores the numerical values after a factory characterization process where known loads are applied. Higher order corrections require more memory and processing time during each sample cycle.
Operational Limit
Stability of the coefficients depends on the mechanical rigidity of the sensor assembly over its lifespan. If the physical structure deforms or the mounting bolts loosen, the calibration matrix no longer accurately represents the sensor geometry. Regular verification against known standards identifies when the matrix requires updating.
Mechanical drift or thermal stress may shift the internal alignment of the sensing elements and invalidate the stored coefficients.
