Constant bending moment device for strain gauge transducers

Details Constant bending moment device for strain gauge transducers Constant bending moment device for strain gauge transducers

1985-05-22

1987-01-06

Goldberg, E. A.

Electrical resistors

Strain gauge type

Dynamometer type

338 2, 7386265, G01L 122

Patent

active

046350250

ABSTRACT:
A constant bending moment device (70) for strain gauge measurement of a force (F) upon an object (32) by means of bending moment. Device (70) is provided with a base member (30) that is adapted to engage object (32) and has a pair of spaced-apart column members (34, 36) extending away from the side of base member (30) facing away from object (32). Column members (34, 36) have respective substantially parallel neutral axis (38, 40) and respective moment arms (37, 39) that extend generally orthogonally towards each other in overhanging relationship to base member (30) and merge at a common portion (24) therebetween having a loading axis (46) that is substantially parallel to neutral axis (38, 40) and equidistant therebetween. Portion (24) is adapted to receive and direct force (F) along loading axis (46) preferably by including an undercut (45) therein and columns (37, 39) have respective substantially equivalent constant cross-sectional configurations along the respective lengths thereof between base member ( 30) and moment arms (37, 39) such that force (F) imposes a substantially constant bending moment along said lengths enabling greater freedom in the location of one or more strain gauges therealong as well as eliminating moment gradients across the strain gauges.

REFERENCES:
patent: 4107985 (1978-08-01), Sommer

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