Numerical analysis of the elastic membrane element of a resistance strain gauge force sensor

The problem of efficient and accurate weighing of goods transported by road and rail remains urgent and requires improving specialized weighing equipment. This paper proposes a new approach to calculate and design the force measuring membrane of an industrial scale force sensor based on modern methods of computer simulation. The causes of sensor errors are discussed. The conditions for reducing the nonlinearity and hysteresis of elastic characteristics due to geometric nonlinearity and dry friction in bearings are analyzed. The finite element method is used to compute efficient geometrical parameters of the elastic element to significantly reduce the measurement error. The results of the study are implemented in the analysis and design of real structures.

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