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Roger M Turpening

Joseph R Matarese

Zhenya Zhu

Carol E Lewis

An ultrasonic computed tomography tree or log scanner has a plurality of ultrasonic transceivers carried on a belt ( ) sized to encircle a tree ( ). The belt includes an apparatus for engaging is tightly around the tree ( ). The transceivers are strapped around the tree, and their mutual relative distances are known. Electronic circuitry energizes the transmitters in a known sequence. The signals received at each of the receivers are also collected and analyzed. Computed tomographic techniques analyze the time of arrival of the acoustic pulse that is first to arrive at each receiver. A signal processor generates a two-dimensional image of a slice of the tree ( ) at the locus of the belt.

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Andover, MA, United States of America

Roger M Turpening