Ultrasonic section plane examination and display

摘要: Moving section plane pictures of a specimen are produced by contacting predetermined peripheral portion an ultrasonic transducer head with the in plane. The has circular internal cavity which wheel is mounted eccentrically for rotation about axis. A plurality transducers peripherally on wheel. gap formed between and surface minimum along where contact to occurs. Each energized only when passing through sector subtended echoes received displayed screen whose base line synchronized movement beam. can be divided into two sets alternately spaced around wheel, each one set having characteristic differing from corresponding second set. Depending upon application, or other selectively time averages may obtained alternate energization sets.