Hydrodynamic dampening system for the precise measurement of dyn

Details Hydrodynamic dampening system for the precise measurement of dyn Hydrodynamic dampening system for the precise measurement of dyn

1996-12-24

1998-09-08

Biegel, Ronald L.

Measuring and testing

Oceanology

Bottom sediment or soil

73 38, 738665, G01L 1300

Patent

active

058047158

ABSTRACT:
A multi-sensor piezometer is disclosed that includes a shaft and an upper amber. The shaft houses a plurality of porous stones that operatively cooperate with the positive input of respective differential pressure transducers. The multi-sensor piezometer further includes a hydraulic dampening system which eliminates the effect of high frequency surface waves on the precision of the multi-sensor piezometer to measure pore pressures in marine sediments.

REFERENCES:
patent: 3534605 (1970-10-01), De Koning et al.
patent: 3935745 (1976-02-01), Jonell et al.
patent: 4150578 (1979-04-01), Swartz
patent: 4332172 (1982-06-01), Torstensson
patent: 4445788 (1984-05-01), Twersky et al.
patent: 4517842 (1985-05-01), Twomey et al.
patent: 4984447 (1991-01-01), Phillips

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