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DISPOSITIF DE COMPTAGE DE POISSONS, SYSTÈME DE COMPTAGE DE POISSONS ET PROCÉDÉ DE COMPTAGE DE POISSONS
DISPOSITIF DE COMPTAGE DE POISSONS, SYSTÈME DE COMPTAGE DE POISSONS ET PROCÉDÉ DE COMPTAGE DE POISSONS
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摘要
The present disclosure is to realize a fish counting device which can simply count fish at low cost. The fish counting device 1 includes an ultrasonic transducer 2 and a processor 4. The ultrasonic transducer 2 transmits an ultrasonic beam 9 underwater in a first fishtank 11 connectable with a second fishtank 12 through a path 13, and is provided with a transducer element arranged in a single channel. The transducer element is disposed at a position where the ultrasonic beam 9 does not intersect the path 13. The processor 4 outputs to the ultrasonic transducer 2 a transmission signal to drive the ultrasonic transducer 2, and acquire a number of fish passing through the ultrasonic beam 9 and moving from the path 13 to the first fishtank 11 based on an echo signal inputted from the ultrasonic transducer 2 that received a reflection wave.
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