Method and apparatus for determining strain data during piling

Details Method and apparatus for determining strain data during piling Method and apparatus for determining strain data during piling

1976-02-25

1977-10-11

Myracle, Jerry W.

Measuring and testing

Testing by impact or shock

Specimen impactor detail

73 84, 340270, G01L 500

Patent

active

040528847

ABSTRACT:
Method and apparatus for determining strain data during piling in which a strain gauge transducer mounted to the pile is excited with alternating current signals. The output of the transducer is sensed, amplified and demodulated to produce signals proportional to strain. The demodulated signals are used to control a voltage controlled oscillator whose output is transmitted by a telemetry transmitter via an antenna mounted to the pile. The signals are received at a remote location, converted back to strain proportional signals and recorded. An accelerometer mounted to the pile may be used to remotely turn on the equipment for a predetermined period. The arrangement is particularly suitable for use when piling offshore.

REFERENCES:
patent: 3156910 (1964-11-01), Tarbutton
patent: 3535919 (1970-10-01), Budlong et al.
patent: 3668673 (1972-06-01), Adler
patent: 3719891 (1973-03-01), Lee
patent: 3824857 (1974-07-01), Smith

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