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
1975-12-02
1977-10-18
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
73 679, G01N 2904
Patent
active
040540537
ABSTRACT:
An automatic weld flaw detector comprises a comparator for comparing the height of an echo from a detected flaw upon movement of a probe over each unit distance with a maximum echo height already known, a counting circuit adapted to work in response to the comparing action of the comparator so as to determine the distance the probe has covered, a device adapted to be actuated by the output from the comparator thereby to memorize separately the maximum value of echo height and the output at that moment from the counting circuit, and a recorder connected to the memorizing device.
REFERENCES:
patent: 3575042 (1971-04-01), Lovelace
patent: 3585851 (1971-06-01), Walther
patent: 3592052 (1971-07-01), Giacomo et al.
E. Scott, Pictorial System for Charting Flaws, Ultrasonics, July 1966, pp. 152-156.
Fujimori Toshiaki
Ohta Koji
Sekiguchi Koji
Yamamoto Eiji
Beauchamp John P.
Queisser Richard C.
Tokyo Keiki Co. Ltd.
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