Patent ID: 11965784
Assignee: BAE SYSTEMS PLC
Field: Measurement (Instruments)
Classification: CPC G  A  B | IPC B  G

Claim 18:
19. An oar comprising:
a sensor for measuring the flex of the oar when exposed to one or more forces, the sensor disposed within the oar and comprising:
a magnet and Hall Effect sensor combination, wherein the magnet and the Hall effect sensor of the combination are at a predetermined position relative to one another when there are no forces acting on the oar and which are movable relative to one another when forces act on the oar, such that a signal proportional to the relative movement is generated by the sensor;
a cylindrical first portion including first and second circular end portions and a plurality of flexible spiral members connecting the first and second circular end portions; and

a protrusion extending from the first circular end portion and having an end in juxtaposition with an internal surface of the second circular end portion.