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US 2026/0227252 A1Published application
Profile to optimize strain distribution in a strain plate
AssigneeSchaeffler Technologies AG & Co. KG
InventorAndrew Dyer
Life of this patent
Estimating the term…
Abstract
A strain plate may be annular or monolithic. The strain plate may include a circumferential groove. The circumferential groove may be formed to provide good linearity and sensitivity to axial loads for a strain gauge circuit affixed to the strain plate. The strain gauge circuit may be affixed to a radial surface opposed to and radially aligned with the circumferential groove. The topology of may create a relative uniform positive and negative strain across the radial surface.
Claims20
A strain plate comprising:
- an outer axial surface;
- a bottom radial surface;
- and
- a top radial surface, wherein the outer axial surface axially extends between and couples the bottom radial surface and the top radial surface, wherein the top radial surface defines:
- a radially-outer top radial surface;
- and
- a circumferential groove, wherein the circumferential groove is disposed radially inwards of the radially-outer top radial surface, wherein the circumferential groove is axially offset from the radially-outer top radial surface towards the bottom radial surface, wherein the circumferential groove includes:
- a radially-inner tapered portion;
- a minimum-material portion;
- and
- a radially-outer tapered portion, wherein the minimum-material portion is radially disposed between the radially-inner tapered portion and the radially-outer tapered portion and is axially disposed between the bottom radial surface and both the radially-inner tapered portion and the radially-outer tapered portion.
8 more elements
A sensor assembly comprising:
- a strain plate comprising:
- an outer axial surface;
- a bottom radial surface;
- and
- a top radial surface, wherein the outer axial surface axially extends between and couples the bottom radial surface and the top radial surface, wherein the top radial surface defines:
- a radially-outer top radial surface;
- and
- a circumferential groove, wherein the circumferential groove is disposed radially inwards of the radially-outer top radial surface, wherein the circumferential groove is axially offset from the radially-outer top radial surface towards the bottom radial surface, wherein the circumferential groove includes:
- a radially-inner tapered portion;
- a minimum-material portion;
- and
- a radially-outer tapered portion, wherein the minimum-material portion is radially disposed between the radially-inner tapered portion and the radially-outer tapered portion and is axially disposed between the bottom radial surface and both the radially-inner tapered portion and the radially-outer tapered portion;
- and
- a strain gauge circuit, wherein the strain gauge circuit is affixed to the bottom radial surface, wherein the strain gauge circuit comprises one or more strain gauges, wherein the one or more strain gauges are radially aligned with the circumferential groove.
11 more elements
A system comprising:
- a sensor assembly comprising:
- a strain plate comprising:
- an outer axial surface;
- a bottom radial surface;
- and
- a top radial surface, wherein the outer axial surface axially extends between and couples the bottom radial surface and the top radial surface, wherein the top radial surface defines:
- a radially-outer top radial surface;
- and
- a circumferential groove, wherein the circumferential groove is disposed radially inwards of the radially-outer top radial surface, wherein the circumferential groove is axially offset from the radially-outer top radial surface towards the bottom radial surface, wherein the circumferential groove includes:
- a radially-inner tapered portion;
- a minimum-material portion;
- and
- a radially-outer tapered portion, wherein the minimum-material portion is radially disposed between the radially-inner tapered portion and the radially-outer tapered portion and is axially disposed between the bottom radial surface and both the radially-inner tapered portion and the radially-outer tapered portion;
- and
- a strain gauge circuit, wherein the strain gauge circuit is affixed to the bottom radial surface, wherein the strain gauge circuit comprises one or more strain gauges, wherein the one or more strain gauges are radially aligned with the circumferential groove;
- and
- a radially-outer assembly, wherein the radially-outer assembly is affixed to the strain plate.
14 more elements
Dependencies are inferred from the claim text.