Temperature compensated extensometer

Details Temperature compensated extensometer Temperature compensated extensometer

1985-02-15

1986-08-26

Martin, Jr., William D.

Geometrical instruments

Area integrators

Electrical

33 1H, 33125T, 374196, G01B 726

Patent

active

046074350

ABSTRACT:
A temperature-compensated borehole extensometer comprises a coaxial remotely anchored assembly of a rod and tube formed of materials having disparate linear coefficients of expansion, said assembly being associated with comparator transducers sensitive to relative linear movement of the rod and tube components under the influence of temperatures.

REFERENCES:
patent: 1217601 (1917-02-01), Housholder
patent: 3460258 (1969-08-01), Geary et al.
patent: 3562916 (1971-02-01), Duckworth
patent: 3828435 (1974-08-01), Baker
patent: 3942380 (1976-03-01), Lorenzo

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