Pressure sensor with correction of offset drift in cyclic signal

• Main Authors: Groenhuijzen, Serge, Salden, Bart Jan Mathijs, Sloetjes, Jan-Willem
• Format: Patent
• Language: English
• Published: 21.08.2018
• Subjects: ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS; MEASURING; MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE; MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR; PHYSICS; TARIFF METERING APPARATUS; TESTING

A method for correcting offset drift in a sensor used in cyclic sensing is provided. The method includes: identifying a target value for a parameter of a signal between sensing cycles of the sensor; ascertaining a difference between a measured value for the signal and the target value; ascertaining a duration between the sensing cycles; using the difference and the duration, calculating a number of steps to attain the target value from the measured value; and adjusting the measured value by the number of steps to substantially agree with the target value. A pressure sensor is disclosed.