Strain measurement

Details Strain measurement Strain measurement

1981-12-14

1984-01-24

Goldberg, Gerald

Measuring and testing

Testing by impact or shock

Specimen impactor detail

73834, G01N 330

Patent

active

044268750

ABSTRACT:
The elongation of a rope or cable under impact stress is measured by attaching a light emitting diode (LED) to a free-falling weight which loads the rope upon impact. The LED is turned on in response to a drive signal indicative of stress of the rope of greater than a given value. The lit LED and an adjacent scale are photographed to provide a record of the distance through which the LED moves, when on, and this indicates the amount of elongation of the rope to failure.

REFERENCES:
patent: 1921624 (1933-08-01), Lewis
patent: 2323724 (1943-07-01), Nadai et al.
patent: 2362589 (1944-11-01), Simmons, Jr.
patent: 2475614 (1949-07-01), Hoppmann et al.
patent: 2660880 (1953-12-01), Vivian
patent: 3196671 (1965-07-01), Dannis
patent: 3287964 (1966-11-01), Dennis et al.
patent: 3538743 (1970-11-01), Glidden
patent: 3777557 (1973-12-01), Dunlap et al.
patent: 3798631 (1974-03-01), Langford
patent: 4178712 (1979-12-01), Williams
patent: 4266217 (1981-05-01), Kao et al.
"Impact Resistance or Energy Absorbing Properties of Ropes of Nylon and `Dacron`," DuPont Technical Information, Multi-Fiber Bulletin X-99, Feb. 1959.

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