Riser tensioner sensor assembly
First Claim
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1. An apparatus comprising:
- a riser tensioner having a movable support and a fixed support;
a sensor target interconnected to one of said movable support and said fixed support of said riser tensioner;
a sensor tube cooperative with said sensor target, said sensor tube being interconnected to the other of said movable support and said fixed support of said riser tenioner; and
a sensoring means cooperative with said sensor tube, said sensor means for sensing a distance that said sensor target moves within said sensor tube.
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Abstract
An apparatus for providing an indication of relative movement between sheave assemblies of a riser tensioner that has a sensor target connectable to one of the sheave assemblies, a senor tube cooperative with said sensor target and suitable for interconnection to the other of the sheave assemblies, a metallic member positioned within the sensor tube and suspended by the sensor target, and a an ultrasonic sensor cooperative with the sensor tube so as to sense a distance that the metallic member moves within the sensor tube in relation to relative movement between the sensor target and the sensor tube.
18 Citations
20 Claims
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1. An apparatus comprising:
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a riser tensioner having a movable support and a fixed support;
a sensor target interconnected to one of said movable support and said fixed support of said riser tensioner;
a sensor tube cooperative with said sensor target, said sensor tube being interconnected to the other of said movable support and said fixed support of said riser tenioner; and
a sensoring means cooperative with said sensor tube, said sensor means for sensing a distance that said sensor target moves within said sensor tube. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A sensor apparatus for providing an indication of relative movement between sheave assemblies of a riser tensioner system, the sensor apparatus comprising:
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a sensor target suitable for interconnection to one of the sheave assemblies;
a sensor tube cooperative with said sensor target, said sensor tube suitable for interconnection to the other of the sheave assemblies;
a metallic member positioned within said sensor tube and suspended by said sensor target, said metallic member being movable within said sensor tube in relation to relative movement between said sensor target and said sensor tube; and
a sensing means cooperative with said sensor tube, said sensing means for sensing a distance at said metallic member moves in said sensor tube. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification