Strain indicator

Details Strain indicator Strain indicator

1974-06-20

1976-06-22

Ruehl, Charles A.

Measuring and testing

Ductility or brittleness

85 62, 116DIG34, F16B 3102

Patent

active

039642992

ABSTRACT:
A strain indicator of the type wherein a change in length of a strain member produces a change in color of a visual indicator. An indicator area and a light-absorbing indicator fluid are encapsulated in a member that also includes a window. The capsule is fastened to the strain member with an adhesive. A change in length of the strain member causes the indicator area to become separated from the window with the result that light-absorbing indicator fluid is caused to flow between the indicator area and the window.

REFERENCES:
patent: 3799108 (1974-03-01), Mosow

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