Application of Sensitivity Analysis to the Correction of Static Characteristics of a Phase Angle Modulator

The paper presents definitions and relative measure s of the system sensitivity and sensitivity of its errors. T he model of a real system and model of an ideal measur ing system were introduced. It allows to determine the errors of the system. The paper presents also how t o use the error sensitivity analysis carried out on the models of the measuring system to the co rrection of the nonlinearity error of its static ch aracteristic. The corrective function is determined as a relation between the in put variable of the tested sys tem and its chosen parameter. The use of the proposed method has been presented on the example of a phase angle modulator. The obtained results have been compared with the results of anal ytic calculations. The idea of a phase angle modulator is also presented.

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