Abstract: The present disclosure is directed to a platform balance that is suitable for transmitting forces and moments in a plurality of directions. The platform balance is adapted to support a test specimen, such as a large vehicle, in a test environment such as a wind tunnel. The platform balance includes a frame support and at least three spaced-apart transducers coupled to the frame support. Each of the transducers is sensitive about two orthogonal sensed axes. The transducers cooperate to provide signals indicative of forces and moments with respect to at least two orthogonal axes. Each transducer includes a transducer body having a support coupled to a sensor body along an axis of compliance. The sensor body is adapted to deflect about the two orthogonal sensed axes where the sensed axes are mutually orthogonal to the axis of compliance.

Abstract: The present disclosure is directed to a platform balance that is suitable for transmitting forces and moments in a plurality of directions. The platform balance is adapted to support a test specimen, such as a large vehicle, in a test environment such as a wind tunnel. The platform balance includes a frame support and at least three spaced-apart transducers coupled to the frame support. Each of the transducers is sensitive about two orthogonal sensed axes. The transducers cooperate to provide signals indicative of forces and moments with respect to at least two orthogonal axes. Each transducer includes a transducer body having a support coupled to a sensor body along an axis of compliance. The sensor body is adapted to deflect about the two orthogonal sensed axes where the sensed axes are mutually orthogonal to the axis of compliance.

Abstract: The present disclosure is directed to a platform balance that is suitable for transmitting forces and moments in a plurality of directions. The platform balance is adapted to support a test specimen, such as a large vehicle, in a test environment such as a wind tunnel. The platform balance includes a frame support and at least three spaced-apart transducers coupled to the frame support. Each of the transducers is sensitive about two orthogonal sensed axes. The transducers cooperate to provide signals indicative of forces and moments with respect to at least two orthogonal axes. Each transducer includes a transducer body having a support coupled to a sensor body along an axis of compliance. The sensor body is adapted to deflect about the two orthogonal sensed axes where the sensed axes are mutually orthogonal to the axis of compliance.

Abstract: A load cell assembly for sensing force and/or moment components on a rotating body supported by a frame includes an axle having opposite ends joined to the frame. A hub is supported by the axle and rotatable about a longitudinal axis thereof. A load cell body joined to the hub and the rotating body is used to sense force and/or moment components between the hub and the rotating body.

Abstract: A platform balance includes a first frame support and a second frame support movable relative to the first frame support. At least one counter balance assembly is provided to support the static weight of the first frames support and elements connected thereto. The counterbalance assembly includes a beam and a pivot assembly allowing the beam to pivot. A weight is selectively positionable on the beam. A compliant assembly is supported by the beam on a portion thereof on a side of the pivot assembly opposite the weight. The compliant assembly supports the first frame support. The compliant assembly includes a second pivot assembly and a planar motion assembly coupled to the second pivot assembly.

Abstract: A load cell assembly for sensing force and/or moment components on a rotating body supported by a frame includes an axle having opposite ends joined to the frame. A hub is supported by the axle and rotatable about a longitudinal axis thereof. A load cell body joined to the hub and the rotating body is used to sense force and/or moment components between the hub and the rotating body.