Method of and an apparatus for the ultrasonic identification of

Details Method of and an apparatus for the ultrasonic identification of Method of and an apparatus for the ultrasonic identification of

1991-06-03

1992-12-01

Pihulic, Daniel T.

Communications, electrical: acoustic wave systems and devices

Echo systems

G01S 1500

Patent

active

051684772

ABSTRACT:
A system of identifying materials and equipment consisting of small metal plates applied to them on their concealed surface and in which identifying means are provided consisting of incisions or blind holes which are detected under scanning or by multiplex technology using ultrasonic transducers which emit ultrasonic waves and which detect the ultrasonic signals reflected by the concealed surface, which set up a different binary coded sequence of return signals as a function of the markings made on the concealed surface of the small plate which is applied to the material.

REFERENCES:
patent: 4280119 (1981-07-01), May
patent: 4342549 (1982-08-01), Lemelson

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