Abstract:This article describes an automatic vibroscope of a compact type simpler than the one perfected by Mackay in 1958. Its features include a vibrator to set a fiber in motion, a simple photo-electric transducer to detect fiber vibrations, a direct coupled amplifier of detected electrical signals and a method to adjust the signal phase.The article shows how to build and operate the new apparatus, and refers to the happy combination of direct coupled amplifier and the pickup-transducer of fiber vibrations.It will b… Show more
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