Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Mechanical measurement system
Reexamination Certificate
2011-01-18
2011-01-18
West, Jeffrey R (Department: 2857)
Data processing: measuring, calibrating, or testing
Measurement system in a specific environment
Mechanical measurement system
C702S094000, C702S183000
Reexamination Certificate
active
07873484
ABSTRACT:
A method for reliable position monitoring includes: (a) transmitting two measured position values from a position measuring device to a first processing unit; (b) transmitting a setpoint value from a setpoint value generator to a second processing unit; (c) transmitting one of the two measured position values to the second processing unit; (d) transmitting the setpoint value to the first processing unit; (e) performing mutually independent comparisons between the setpoint value and the measured position values by the first processing unit and the second processing unit; and (f) monitoring the measured position values for an electronic shaft break between the position measuring device and the first processing unit. The position values are different and have a defined relationship with respect to each other, and the transmitting (a) includes alternately transmitting the two measured position values to the first processing unit.
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Dr. Johannes Heidenhain GmbH
Kenyon & Kenyon LLP
West Jeffrey R
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