Extensometer and support for an extensometer

Details Extensometer and support for an extensometer Extensometer and support for an extensometer

1994-11-04

1996-07-23

Will, Thomas B.

Geometrical instruments

Distance measuring

Opposed contacts

73781, G01B 716

Patent

active

055377548

ABSTRACT:
The extensometer comprises a basic body (18) which carries two tap legs (12) which abut a specimen (16) to be measured so as to be frictionally locked thereto. Due to the frictional contact, the tap legs (12) move relative to each other when the specimen is subjected to external stresses. Via a signal transmitter (24), this movement of the tap legs (12) is detected. The extensometer (10) is floatingly supported by introducing gas in the clearance between a baffle body (36) connected to the extensometer (10) and a stationary support member (28) toward the baffle body (36). On the one hand, the upbuilding gas cushion presses the extensometer (10) with its tap legs (12) against the specimen (16) so as to be frictionally locked thereto and, on the other hand, permits pivoting of the extensometer (10) corresponding to the movement of the measuring points.

REFERENCES:
patent: 1999075 (1935-04-01), Bauer et al.
patent: 2099896 (1937-11-01), Kinzel
patent: 2495797 (1950-01-01), Whitlock et al.
patent: 3001291 (1961-09-01), Sjostrom
patent: 3660904 (1972-05-01), Steele et al.
patent: 4223443 (1980-09-01), Bachmann et al.
patent: 4527335 (1985-07-01), Meline
patent: 4939445 (1990-07-01), Meline et al.

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