Abstract:
A platform balance (10) includes a first frame support (12) and a second frame support (14) movable relative to the first frame support (12). At least one counter balance assembly (40) is provided to support the static weight of the first frame support (12) and elements connected thereto. The counterbalance assembly (40) includes a beam (42) and a pivot assembly (50) allowing the beam to pivot. A weight (44) is selectively positionable on the beam (42). A compliant assembly is supported by the beam (42) on a portion thereof on a side of the pivot assembly (50) opposite the weight (44). The compliant assembly supports the first frame support (12). The compliant assembly includes a second pivot assembly (58) and a planar motion assembly (60) coupled to the second pivot assembly (58).
Abstract:
Bei einem Maschinenelement mit einem Hohlwellenabschnitt und mit einer Sensoreinrichtung (2) zur Erfassung einer sich auf den Hohlwellenabschnitt auswirkenden mechanischen Beanspruchung ist die Sensoreinrichtung (2) in dem Hohlwellenabschnitt angeordnet, wobei der Hohlwellenabschnitt eine erste radial nach innen ragende Ausformung (12) und eine zweite radial nach innen ragende Ausformung (20) aufweist und die Sensoreinrichtung (2) mit einer axialen Vorspannung zwischen der ersten radial nach innen ragenden Ausformung (12) und der zweiten radial nach innen ragenden Ausformung (20) formschlüssig festgelegt ist. Bei einem Herstellungsverfahren zur Herstellung des Maschinenelements wird in einem ersten Ausformungsschritt eine erste radial nach innen vorspringende Ausformung (12) in dem Hohlwellenabschnitt des Maschinenelements erzeugt, in einem nachfolgenden Sensoranordnungsschritt eine Sensoreinrichtung (2) in dem Hohlwellenabschnitt an der ersten radial nach innen vorspringenden Ausformung (12) formschlüssig angelegt und in einem nachfolgenden Festlegungsschritt die zweite radial nach innen vorspringende Ausformung (20) in dem Hohlwellenabschnitt erzeugt, durch den die Sensoreinrichtung (2) mit einer axialen Vorspannung zwischen der ersten radial nach innen vorspringenden Ausformung (12) und der zweiten radial nach innen vorspringenden Ausformung (20) formschlüssig festgelegt wird.
Abstract:
A transducer body (10) including a support having a pair of clevis halves (16, 18), and a sensor body (12; 102; 202; 242) coupled to each of the clevis halves (16, 18), the sensor body (12; 102; 202; 242) disposed between the clevis halves 16, 18 and configured to deflect with forces along two orthogonal axes. The sensor body (12; 102; 202; 242) includes a generally rigid peripheral member (22) disposed about a spaced-apart central hub (20), the central hub (20) joined to each of the clevis halves (16, 18) with the peripheral member (22) spaced apart from each clevis half. At least three flexure components (31-34; 112A-112B; 212; 251-254) couple the peripheral member 22 to the central hub 20. The flexure components (31-34; 112A-112B; 212; 251-254) are spaced-apart from each other at generally equal angle intervals about the central hub 20. The sensor body (12; 102; 202; 242) further includes a flexure assembly (51A- 51B; 115A-115B) for each of the at least some flexure components (31-34; 112A-112B; 212; 251-254) joining the flexure component (31-34; 112A-112B; 212; 251-254) to at least one of the central hub (20) and the peripheral member (22), the flexure assembly (51A- 51B; 115A-115B) being compliant for forces in a radial direction from the central hub (20) through the flexure component (31-34; 112A-112B; 212; 251-254) and to the peripheral member (22), wherein each flexure assembly (51A- 51B; 115A-115B) is configured such that forces transferred between central hub (20) and the peripheral member (22) concentrate strain at a midpoint (66) along the length of each corresponding flexure component (31-34; 112A-112B; 212; 251-254). A platform balance (300) may be provided with transducer bodies (10) as shown and described.
Abstract:
High precision force imparting and/or force (including weight) and displacement measuring/indicating device (200) which includes a multi-dimensional capacitor transducer system (202). The multi-dimensional transducer (202) includes a first capacitive transducer (204) for imparting force or movement and/or detecting force, weight, or position in a first direction and a second capacitive transducer (206) for imparting force or movement and/or detecting force, weight, or position in a second direction. The multi-dimensional transducer (202) may be used to provide in situ imaging in micro-mechanical test systems.
Abstract:
A transducer body (10) including a support having a pair of clevis halves (16, 18), and a sensor body (12; 102; 202; 242) coupled to each of the clevis halves (16, 18), the sensor body (12; 102; 202; 242) disposed between the clevis halves 16, 18 and configured to deflect with forces along two orthogonal axes. The sensor body (12; 102; 202; 242) includes a generally rigid peripheral member (22) disposed about a spaced-apart central hub (20), the central hub (20) joined to each of the clevis halves (16, 18) with the peripheral member (22) spaced apart from each clevis half. At least three flexure components (31-34; 112A-112B; 212; 251-254) couple the peripheral member 22 to the central hub 20. The flexure components (31-34; 112A-112B; 212; 251-254) are spaced-apart from each other at generally equal angle intervals about the central hub 20. The sensor body (12; 102; 202; 242) further includes a flexure assembly (51A- 51B; 115A-115B) for each of the at least some flexure components (31-34; 112A-112B; 212; 251-254) joining the flexure component (31-34; 112A-112B; 212; 251-254) to at least one of the central hub (20) and the peripheral member (22), the flexure assembly (51A- 51B; 115A-115B) being compliant for forces in a radial direction from the central hub (20) through the flexure component (31-34; 112A-112B; 212; 251-254) and to the peripheral member (22), wherein each flexure assembly (51A- 51B; 115A-115B) is configured such that forces transferred between central hub (20) and the peripheral member (22) concentrate strain at a midpoint (66) along the length of each corresponding flexure component (31-34; 112A-112B; 212; 251-254). A platform balance (300) may be provided with transducer bodies (10) as shown and described.
Abstract:
A platform balance (10) includes a first frame support (12) and a second frame support (14) movable relative to the first frame support (12). At least one counter balance assembly (40) is provided to support the static weight of the first frame support (12) and elements connected thereto. The counterbalance assembly (40) includes a beam (42) and a pivot assembly (50) allowing the beam to pivot. A weight (44) is selectively positionable on the beam (42). A compliant assembly is supported by the beam (42) on a portion thereof on a side of the pivot assembly (50) opposite the weight (44). The compliant assembly supports the first frame support (12). The compliant assembly includes a second pivot assembly (58) and a planar motion assembly (60) coupled to the second pivot assembly (58).
Abstract:
A platform balance (10) includes a first frame support (12) and a second frame support (14) movable relative to the first frame support (12). At least one counter balance assembly (40) is provided to support the static weight of the first frame support (12) and elements connected thereto. The counterbalance assembly (40) includes a beam (42) and a pivot assembly (50) allowing the beam to pivot. A weight (44) is selectively positionable on the beam (42). A compliant assembly is supported by the beam (42) on a portion thereof on a side of the pivot assembly (50) opposite the weight (44). The compliant assembly supports the first frame support (12). The compliant assembly includes a second pivot assembly (58) and a planar motion assembly (60) coupled to the second pivot assembly (58).