Displacement sensor axis misalignment error

Because of valve displacement great importance in valve systems in many marine power aggregates and other servomechanisms and equipment, controlling measurement of this parameter would be taken. Hysteresis measurement must also be taken after every mounting and periodically revision activities. Controlling measurement complies of displacement sensor and computer system applied with adequate hardware and software solutions. Displacement sensor axis misalignment error cannot be avoided in any situation where sensor axis line of symmetry is not parallel with axis line of valve movement. Therefore, elevation error must be considered. Other errors and imperfections in measuring process because of clearly thesis description in this paper are negligible (measuring method, sensor class, nonlinearity, software signal transition). Paper goal is pointing error values regarding sensor axis elevation and its presentation in meaningful ways, with comprehensive further influences