Identification of pendulous accelerometer mathematical model taking into account parametric uncertainty

This paper describes a determination of a generalized mathematical model in a state-space representation for a synthesis of both classical control laws and controllers, taking into account parametric uncertainty. It researches an influence of pendulous accelerometer parameter uncertainty on a current value of a momentum set unit within a feedback circuit. A current under consideration is an analogue to scale factor of a pendulous accelerometer. Several compensating current consumption values for a momentum set unit have been obtained during an accelerometer mathematical simulation for various combinations of parameters, which have a spread. As a result, we obtained a mathematical model of accelerometer in a state-space representation, which contains various sub-models depending on a problem to be solved. The major parameters of the accelerometer were determined, i.e. the parameters, whose variations produced the maximum change of current value of momentum set unit.