Abstract: An extensometer structure comprising a first extension arm having a first mount configured to support a first specimen engaging member and a second extension arm having a second mount configured to support a second specimen engaging member. A cross-flexure assembly is formed between the first extension arm and the second extension arm remote from the first mount and the second mount. The cross-flexure assembly may include a first flexure and a second flexure each joined to and extending between the first extension arm and the second extension arm. The second flexure is orthogonal to the first flexure to form a pivot axis, the second flexure extending only on one lateral side of the first flexure from the first extension arm to the second extension arm and the first flexure extending only on one lateral side of the second flexure from the first extension arm to the second extension arm.

Abstract: In one aspect, a transducer body, includes a support including a pair of clevis halves; and a sensor body coupled to each of the clevis halves. The sensor body is disposed between the clevis halves and includes a generally rigid 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, where at least three flexure components couple the peripheral member to the central hub, and where the flexure components are spaced-apart from each other at generally equal angle intervals about the central hub. A biasing assembly connected between the support and the sensor body is configured to provide a bias force between the sensor body and the support.

Abstract: A load cell body for transmitting forces and moments in plural directions is disclosed. The load cell body comprises a first member, a second member and a plurality of pairs of support columns. The second member includes a plurality of apertures, where a portion of a plurality of portions of the first member extends into each aperture. The plurality of pairs of support column columns are configured for each portion of the first member and the corresponding aperture of the second member, such that each pair of support columns connects the corresponding portion of the first member to the second member.

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.

Abstract: In one aspect, a transducer body, includes a support including a pair of clevis halves; and a sensor body coupled to each of the clevis halves. The sensor body is disposed between the clevis halves and includes a generally rigid 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, where at least three flexure components couple the peripheral member to the central hub, and where the flexure components are spaced-apart from each other at generally equal angle intervals about the central hub. A biasing assembly connected between the support and the sensor body is configured to provide a bias force between the sensor body and the support.

Abstract: A load cell body for transmitting forces and moments in plural directions is disclosed. The load cell body comprises a first member, a second member and a plurality of pairs of support columns. The second member includes a plurality of apertures, where a portion of a plurality of portions of the first member extends into each aperture. The plurality of pairs of support column columns are configured for each portion of the first member and the corresponding aperture of the second member, such that each pair of support columns connects the corresponding portion of the first member to the second member.

Abstract: In one aspect, a platform balance includes a frame support, and at least three spaced-apart transducer bodies coupled to the frame support. Each 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.