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Document Number
US Patent 3921441
Issued Date
November 25, 1975
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Abstract
The acoustic head is intended for ultrasonic measurement at non-destructive testing and quality control of solid bodies and articles. The herein disclosed head includes, in addition to an electromechanical transducer, e.g. a piezoelectric one, shock-damping means, protector and means for pressing the transducer to a test object, an electric motor (7) mounted in the housing (1) of the head, an eccentric (9) mounted on the shaft (8) of the motor and engaging the holder (3) of the transducer through a groove (10) made in this holder. When the electric motor (7) is supplied with electric power, the structure of the head provides for generating specified vibratory oscillation of the transducer (2) relative to the housing (1), and when the head is applied to a test object, this oscillation is effected relative to this object, the vibration of the transducer (2) being effected under conditions of high-quality acoustic contact, with easily reproduced parameters.
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Acoustic head - US Patent 3921441 Drawing
Drawing from US Patent 3921441
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Number of Claims:
4
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Owner
Published
November 25, 1975
Application Number
05/415,378
Filed
November 13, 1973
US Classification
73/632   310/336
Int'l Classification
G01N   29/24   (20060101)   G10K   11/00   (20060101)  
Assistant Examiner
Attorney/Law Firm
USPTO Field of Search
73/71.5US   73/67.5R   73/67.6   73/67.7   73/67.8R   310/8.1   310/8.7   310/9.1   116/137A  
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