Apparatus for object scanning

Measuring and testing – Vibration – By mechanical waves

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33 1CC, 128660, G01N 2900

Patent

active

043064582

ABSTRACT:
In an exemplary embodiment, an ultrasonic scanning apparatus has an articulated support for at least one scan head and angle indicators for determining point- and/or direction-coordinates of the scanning. An angle detection and processing is desired which is considerably simplified as compared with the state of the art but which is nevertheless highly precise, interference-insensitive and cost-economical. This is achieved by at least one synchro system for supplying a sine and/or cosine of the angular value of the rotational angles and including a purely electric cascade interconnection of individual synchros so as to form a synchro control transformer- or resolver-chain or a mixed chain consisting of synchro control transformer- or resolver-chain or a mixed chain consisting of synchro control transformers and resolvers for the purpose of conversion of sine- or cosine-values, respectively, of the rotational angles into sums and/or differences of individual angles and/or into sine- or cosine-functions, respectively, of such angular sums or angular differences.

REFERENCES:
patent: 2906179 (1959-09-01), Bower
patent: 3308652 (1967-03-01), Appel et al.
patent: 3439530 (1969-04-01), Flaherty
patent: 3448606 (1969-06-01), Flaherty et al.
patent: 3944798 (1976-03-01), Eaton
patent: 4014207 (1977-03-01), Meyer et al.
W. Bopp et al., "Radar, Grundlagen und Anwendungen", 1962, Fachverlag Schiele & Schon GmbH, Berlin, pp. 159-172.

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