Measuring and testing – Specimen stress or strain – or testing by stress or strain... – By loading of specimen
Patent
1998-02-27
2000-08-29
Noori, Max
Measuring and testing
Specimen stress or strain, or testing by stress or strain...
By loading of specimen
73862044, G01N 300
Patent
active
061091154
ABSTRACT:
A stress composite sensor has sensor elements each including a base plate having a rectangular configuration and a first main surface and a second main surface opposite the first main surface, a pair of first strain gauges disposed on the first main surface crossing one another, a pair second strain gauges disposed on a the second main surface crossing one another, the first pair of strain gauges and the second pair of strain gauges being symmetrically disposed with respect to a center plane of the base plate; and bridge circuits incorporating the first pair of strain gauges and the second pair of strain gauges. The sensor elements include X-sensor elements for measuring stress in an X-direction, Y-sensor elements for measuring stress in a Y-direction, and Z-sensor elements for measuring stress in a Z-direction. Arithmetic circuits calculate stress from outputs of the bridge circuits. The X-sensor elements have edge portions orthogonally joined to edge portions of the Y-sensor elements to form L-shaped sensor segments and the Z-sensor elements are each edgewise joined to ones of the L-shaped sensor segments orthogonal to the X-sensor elements and the Y-sensor elements thereby forming three plane sensor segments having three contiguous faces of a parallelepiped and to output X-, Y- and Z-direction stress signals. The three plane sensor segments are joined together in a matrix to form one assembled body.
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patent: 5872320 (1999-02-01), Kamentser et al.
Japan Electronics Industry Limited
Noori Max
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