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Ultrasonic pulse-echo apparatus
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TLDR
In this article, an improved signal processing circuit for compensating for attenuation effects caused by ultrasound absorption, diffraction, reflection and scattering is proposed for use in ultrasonic pulse-echo apparatus including an ultrasonic wave transducer.Abstract:
For use in ultrasonic pulse-echo apparatus including an ultrasonic wave transducer for transmitting an ultrasonic wave toward an object to be examined and for producing an electric signal corresponding to echo pulses reflected by the object, an improved signal processing circuit for compensating for attenuation effects caused by ultrasound absorption, diffraction, reflection and scattering. Compensation for these image-degrading effects assures simple, reliable and repeatable equipment performance, and contributes to reliable detection of very weak echoes.read more
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References
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Method and apparatus for visual imaging ultrasonic echo signals utilizing multiple transmitters for reduced specular reflection effects
TL;DR: In this paper, an acoustic lens or reflector images object-reflected ultrasonic signals (echoes) onto a single row of acoustic detectors associated with the centrally-most oriented transmitter and such echo signals resulting from each sequentially incident ultrasonic signal are stored in a memory component associated with detectors.
Patent
Method of testing workpieces by means of ultra-sound waves according to the impulse echo method
TL;DR: In this paper, the authors present a method for non-deformation examining workpieces, ESPECIALLY WELDING SEAMS, by means of,ULTRA-SOUND WAVS ACCORDING to the IMPULSE-ECHO METHOD.
Patent
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