Mechanical sector scanner head and power train

Details Mechanical sector scanner head and power train Mechanical sector scanner head and power train

G - Physics

01

N

349/35, 349/36

G01N 29/00 (2006.01) A61B 10/00 (2006.01) G10K 11/00 (2006.01) G10K 11/20 (2006.01)

Patent

CA 1162286

UNI-13 MECHANICAL SECTOR SCANNER HEAD AND POWER TRAIN Abstract A curved faced, disc shaped transducer and an oppositely facing, circular angularly disposed mirror form the trans- mission and reception path of a mechanical sector scan imaging system. The transducer and mirror are mounted on a common axis, and a shaft upon which the mirror is affixed oscillates about that axis. Through a belt drive mechanism, a motor provides the oscillating motion, in turn scanning the ultrasound beams through the subject by virtue of the mirror motion. An optical encoder records positional information from the motor, for coordination of the mirror oscillation with transducer signals, and there- by for the assembly of a composite image.

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