Dynamometer comprising an elastic bar provided with strain gages

Details Dynamometer comprising an elastic bar provided with strain gages Dynamometer comprising an elastic bar provided with strain gages

1984-10-30

1986-04-01

Ruehl, Charles A.

Measuring and testing

Dynamometers

Responsive to force

7386208, 338 2, G01L 122

Patent

active

045790078

ABSTRACT:
The dynamometer comprises a bar (1) made of elastic material, which is intended to be subjected to the stresses to be measured and the outer surface of which possesses strain gages. This bar (1) is substantially cylindrical and has on its outer surface a series of resistive strips (3a,4,4a,5,5a) arranged in at least one helix, these strips being of substantially equal lengths, and each strip extending over part of the periphery of the bar (1) and being separated from the following strip in the direction of advance of the helix, the ends of some of these strips being connected electrically by means of conductive lamellae (7,8,9). The invention is used to measure bending, torsional and shearing stresses.

REFERENCES:
patent: 2392293 (1946-01-01), Ruge
patent: 3293585 (1966-12-01), Horn
patent: 3826130 (1974-07-01), Pusch
patent: 4145921 (1979-03-01), Blackwelder

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