Multi axis load cell body
AssigneeMTS Systems Corporation
InventorsRichard Meyer, Alan Kempainen
Life of this patent
Estimating the term…
Abstract
A load cell body for transmitting forces and moments in a plurality of directions includes an integral assembly having a first ring member and a second ring member. Each ring member has a central aperture centered on a reference axis. In one embodiment, three or more sensor assemblies extend from the first ring member to the second ring member parallel to the reference axis. Each sensor assembly includes a stiff member attached to one of the rings and extending therefrom to the other radially from the reference axis, and a flexure assembly joining a remote end of each member to the other ring member.
Claims14
A load cell suitable for transmitting forces and moments in a plurality of directions, the load cell comprising:
- an integral assembly being formed from a single unitary body and having:
- a first ring member and a second ring member, each ring member having a central aperture centered on a reference axis;
- and
- at least three sensor assemblies, each sensor assembly comprising a stiff member attached to one of the rings and extending therefrom to the other radially from the reference axis, and a flexure assembly joining a remote end of each member to the other ring member;
- and
- sensing devices disposed on each of the flexure assemblies configured to sense strain therein.
A load cell body suitable for transmitting forces and moments in a plurality of directions, the load cell comprising:
- an integral assembly being formed from a single unitary body and having:
- a first ring member and a second ring member, each ring member having a central aperture centered on a reference axis;
- and
- at least three sensor assemblies, each sensor assembly comprising a stiff member attached to one of the rings and extending therefrom to the other radially from the reference axis, and a flexure assembly joining a remote end of each member to the other ring, each flexure assembly comprising two flexure elements joining the remote end of each member to the other ring, wherein the flexure elements are on opposite side of an axis of each member, and wherein each flexure element includes an aperture to form a pair of flexure straps.
Dependencies are inferred from the claim text.