Circuit design for measurement of force in biaxial area

Abstract

This contribution is focused on circuit design for measurement of speed and direction of wind. The measurement method is based on balance of strain gauge sensors on the deformation unit which are connected to the bridge. The sensor reacts to the mechanical force in biaxial area. The semiconductor strain gauges are used in this work. They have a very considerable and accurate change of the electrical resistance with applied mechanical strain. Evaluation is realized as a voltage difference. This measurement is a part of the model of Photovoltaic unit.