Uncertainty evaluation of slope coefficient of high precision displacement sensor

Abstract

Because of high precision displacement determination in many marine power aggregates governing systems and other fine servomechanisms, uncertainty determination should be taken. Value of absolute displacement of all precise movement parts in hydraulic servomechanisms of governing systems must be controlled periodically. Uncertainty evaluation of displacement sensor and its sensibility cannot be avoided in phase of its construction, production and implication. In process of uncertainty evaluation all contributions and imperfections must be considered, but some with less influences in evaluating process because of clearly thesis description are unimportant (elements temperature stability, electromagnetic influences). The purpose of thesis is to calculate and predict maximal slope coefficient uncertainty and its affection to the measuring value in similar cases. Scientific method, issued algorithm and calculation model performed in this paper can be used as application in standard calibration protocols