Measuring and testing – Liquid analysis or analysis of the suspension of solids in a... – Content or effect of a constituent of a liquid mixture
Patent
1975-09-30
1977-04-19
Queisser, Richard C.
Measuring and testing
Liquid analysis or analysis of the suspension of solids in a...
Content or effect of a constituent of a liquid mixture
73 678S, G01N 2904
Patent
active
040180824
ABSTRACT:
Device for nondestructive ultrasonic testing of cylindrical parts, comprising a basin in which the part to be tested, for example a journal bearing provided with an antifriction alloy is immersed. The basin is mounted on a revolving plate having a gear driven by means of an inclined-tooth pinion. A vertically movable horizontal arm, depending upon diameter of the part to be tested, carries two piezoelectric transducers and an arcograph, the marking of the bonding fault area on the surface of the part to be tested being effected by means of an electric arc produced between one trace element of the arcograph, which receives a voltage signal from the monitor of a fault detector through the control assembly of the arcograph, and the inner surface of the part to be tested. The entire cylindrical surface is explored along a tangent of partially superposed helixes and the pitch of the helix is equal to, or smaller than the diameter of the piezoelectric transducer crystal.
REFERENCES:
patent: 2921126 (1960-01-01), Street et al.
patent: 3225136 (1965-12-01), Furon
patent: 3780570 (1973-12-01), Collins
A. P. Rogel et al., A New Concept in Immersion Ultrasonics, Materials Evaluation, May 1968, pp. 83-89.
Frangopol Victor
Heretoiu Silviu
Ionescu Gheorghe
Lutescu Andrei
Manoliu Victor
Beauchamp John P.
Dubno Herbert
Institutul Pentru Creatie Stintifica si Tehnica-Increst
Queisser Richard C.
Ross Karl F.
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