Patent ID: 7706997
Filing Date: 2010-04-27
Classification: G01D

Abstract:
1. A method for measuring a temperature dependency of a sensor element for a variable, a value of which varies with a temperature, for an oil-like liquid, in which method the temperature of the liquid is changed over time, comprising the following steps: collecting data produced by the sensor element simultaneously with a changing of the temperature, and thereafter using the data produced by the sensor element at the different temperatures to determine coefficients for compensation algorithms of the temperature dependencies of the sensor element, thus producing a correlation between the change in temperature and the other measured variables, wherein the correlation can be obtained between the changes in a capacitance of the sensor element and a dielectric constant: wherein F depicts a correlation function, ∈ is capacitance, Ceps is the dielectric constant and Tconst is measured temperature at a given point.