Data processing: measuring – calibrating – or testing – Measurement system – Orientation or position
Reexamination Certificate
2006-05-16
2006-05-16
Barlow, John (Department: 2863)
Data processing: measuring, calibrating, or testing
Measurement system
Orientation or position
C702S181000, C702S183000, C073S009000, C073S865900
Reexamination Certificate
active
07047152
ABSTRACT:
A method for evaluation whether oscillations in a control process depend on static friction in an actuator. A signal from the actuator or the signal from the process is measured. The measured signal is signal processed for the purpose of detecting whether the measured signal comprises abrupt inclination changes. It is decided whether there is static friction in the actuator based on whether the signal comprises abrupt inclination changes.
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ABB AB
Barlow John
Franklin Eric J.
Venable LLP
Vo Hien
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