Transducer for determining strain data during piling

Details Transducer for determining strain data during piling Transducer for determining strain data during piling

1978-03-02

1979-11-20

Myracle, Jerry W.

Measuring and testing

Testing of shock absorbing device

In situ vehicle suspension

G01N 332

Patent

active

041746252

ABSTRACT:
A transducer is disclosed for placing on top of a pile to indicate the force imposed on the pile by the hammer driving the pile. The transducer includes a body made of a material of a known modulus of elasticity. The body has first and second parallel surface areas on opposite sides thereof that face the pile and the hammer respectively. One of the surface areas comprises the co-planer surfaces of a plurality of spaced flexure elements that are spaced outwardly from the adjacent surface of the body. Each flexure element is connected to the body by supporting arms that are integrally connected to the flexure elements and the body to transmit the force imposed on the flexure elements to the body. Strain gauges mounted on the supporting arms measure the strain in the arms due to the force of the hammer from which the force imposed by the hammer on the pile can be determined.

REFERENCES:
patent: 3277704 (1966-10-01), Eckard
patent: 3771359 (1973-11-01), Shoberg
patent: 3817091 (1974-06-01), Fredrick

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