Two-axis sensor body for a load transducer
First Claim
1. A transducer body, comprising:
- a support comprising a pair of clevis halves; and
sensor body coupled to each of the clevis halves, wherein the sensor body is disposed between the clevis halves and configured to deflect with forces along two orthogonal axes, wherein the sensor body includes a peripheral member disposed about a spaced-apart central hub, the central hub being joined to each of the clevis halves with the peripheral member spaced apart from each clevis half, wherein at least three flexure components couple the peripheral member to the central hub, and wherein the flexure components are spaced-apart from each other at angular intervals about the central hub;
the sensor body further including a flexure assembly for each of said at least three flexure components joining its flexure component to at least one of the central hub and the peripheral member, each flexure assembly being compliant for forces in a radial direction from the central hub through the flexure component and to the peripheral member, wherein at least two flexure assemblies are configured such that forces transferred between the central hub and the peripheral member concentrate strain at a midpoint along a longitudinal length of each corresponding flexure component configured for strain measurement, and wherein the at least two flexure assemblies and the corresponding flexure component midpoint are collinear.
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Accused Products
Abstract
In one aspect, a transducer body includes a support having clevis halves. The sensor body includes a generally rigid peripheral member disposed about a spaced-apart central hub joined to each of the clevis halves. At least three flexure components couple the peripheral member to the hub. The flexure components are spaced-apart from each other at generally equal angle intervals about the hub; the sensor body further including a flexure assembly for some flexure components joining the flexure component to at least one of the hub and the peripheral member, the flexure assembly being compliant for forces in a radial direction from the hub to the peripheral member. Each flexure assembly is configured such that forces transferred concentrate strain at a midpoint along the length of each corresponding flexure component.
75 Citations
36 Claims
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1. A transducer body, comprising:
- a support comprising a pair of clevis halves; and
sensor body coupled to each of the clevis halves, wherein the sensor body is disposed between the clevis halves and configured to deflect with forces along two orthogonal axes, wherein the sensor body includes a peripheral member disposed about a spaced-apart central hub, the central hub being joined to each of the clevis halves with the peripheral member spaced apart from each clevis half, wherein at least three flexure components couple the peripheral member to the central hub, and wherein the flexure components are spaced-apart from each other at angular intervals about the central hub;
the sensor body further including a flexure assembly for each of said at least three flexure components joining its flexure component to at least one of the central hub and the peripheral member, each flexure assembly being compliant for forces in a radial direction from the central hub through the flexure component and to the peripheral member, wherein at least two flexure assemblies are configured such that forces transferred between the central hub and the peripheral member concentrate strain at a midpoint along a longitudinal length of each corresponding flexure component configured for strain measurement, and wherein the at least two flexure assemblies and the corresponding flexure component midpoint are collinear. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
- a support comprising a pair of clevis halves; and
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34. A transducer body, comprising:
- a support comprising a pair of clevis halves; and
a sensor body coupled to each of the clevis halves, wherein the sensor body is disposed between the clevis halves and configured to deflect with forces along two orthogonal axes, wherein the sensor body includes a peripheral member disposed about a spaced-apart central hub, the central hub being joined to each of the clevis halves with the peripheral member spaced apart from each clevis half, wherein at least three flexure components couple the peripheral member to the central hub, and wherein the flexure components are spaced-apart from each other at angular intervals about the central hub;
the sensor body further including a flexure assembly for each of said at least three flexure components joining its flexure component to at least one of the central hub and the peripheral member, the flexure assembly being compliant for forces in a radial direction from the central hub through the flexure component and to the peripheral member, wherein each of at least two flexure assemblies comprises a first connecting web orthogonal to its flexure component, and the first connecting web is disposed to be approximately in line with a midpoint along a longitudinal length of its corresponding flexure component, wherein forces transferred between the central hub and the peripheral member concentrate strain at the midpoint of each corresponding flexure component configured for strain measurement, and wherein the at least two flexure assemblies and the corresponding flexure component midpoint are collinear. - View Dependent Claims (35, 36)
- a support comprising a pair of clevis halves; and
Specification