Title: Strain pick-up for testing of materials

Abstract: A strain gauge pick-up for the measurement of a test piece. This pick-up ludes two tapping points mounted on a pair of rigid elbow members. The elbow members are spaced a predetermined distance apart, and their spacing varies as the tapping points are applied to the test piece. The elbow members are attached to the deflection plate which flexes as the spacing between the elbow members changes. A wire strain gauge is positioned on the deflection plate and senses the flexing motion. Several pick-ups can be integrated so that their tapping points are substantially colinear.

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Inventors: Bachmann, Volker (St. Augustin, DE, US)
Nowack, Horst (Vollmarstein, DE, US)
Trautmann, Karl-Heinz (St. Augustin, DE, US)

Application Number: 028537
Filing Date: 1979-04-09
Publication_date: 1980-09-23
Assignee: Deutsche Forschungs- und Versuchsanstalt fur Luft- und Raumfahrt e.V. (Cologne, DE)
Primary Class(es): 73/781 33/DIG13
Other Classes:
US Patent Ref:

2316975	Apr, 1943	Ruge	33/148.
2611966	Sep, 1952	Rebman	73/750.
2681566	Jun, 1954	Ruge	33/DIG.
3789508	Feb, 1974	Meline	33/148.
3853000	Dec, 1974	Barnett et al.	33/DIG.

Other Refs: 728345

Dec, 1966	IT

Primary Examiner: Haroian, Harry N.
Assistant Examiner:
Attorney: Spensley, Horn, Jubas & Lubitz