An ultrasonic to electronic image converter tube for operation at 1.20 Mc/s

1 January 1966

journal article
Published by Institution of Engineering and Technology (IET) in Radio and Electronic Engineer

Vol. 31 (3) , 161-170
https://doi.org/10.1049/ree.1966.0021

Abstract

From 1949 to 1954 a programme of work was undertaken into the design of a cathode-ray image converter tube for transforming a plane section through a continuous-wave ultrasonic field to a television picture.Eleven different types of high-vacuum sealed-off experimental tubes were investigated. The final tube had a resonant quartz front-plate 5.7 cm diameter and operated at 1.20 Mc/s with a threshold acoustic sensitivity of 7 × l0−7 watts/cm2. The overall acuity was 1 mm on the front-plate and the resulting picture appeared on a monitor cathode-ray tube at 16⅔ frames per second with 110 lines per frame.This tube is compared with those reported by other workers since 1954.

Keywords

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