E - Fixed Constructions – 02 – F
Patent
E - Fixed Constructions
02
F
E02F 9/00 (2006.01) G01G 19/14 (2006.01)
Patent
CA 2282950
An indirect suspended load weight measuring system that is suitable for use with an excavator has a moving load bucket rotating about a swing axis. The load bucket has a load therein, and the excavator has a swing drive motor for rotating the bucket, and a hoist rope for supporting the load bucket. The system comprise a torque determination circuit for determining a torque of the swing drive motor and for outputing a motor torque signal having a parameter representative of an instantaneous motor torque. A radius sensing circuit senses a radius of the load bucket with respect to the swing axis and provides a radius signal. A speed sensing circuit determines an angular speed of the load bucket with respect to the swing axis and provides an angular speed signal. A computation circuit responsive to the instantaneous torque signal, the radius signal and the angular speed signal, computes a weight of the moving load.
Company General Electric
Craig Wilson And Company
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