| 摘要 |
It is intended to provide an ultrasound flaw detection device of an immersion-type that is inserted into a tube and is capable of moving smoothly within the tube just with water pressure, as well as an ultrasound flaw detection system. The ultrasound flaw detection device which detects abnormalities within the tube while moving in the tube by pressure of water flow, includes: an ultrasound flaw detector which is divided into a plurality of parts and includes an ultrasound probe 11 which emits an ultrasound wave from an inside of the tube to a tube wall and receives an echo signal to be received that is reflected from the tube wall, a pulser-receiver 12 which transmits a pulse signal to the ultrasound probe 11 and to which the received echo signal is inputted from the ultrasound probe 11, a memory unit 14 which stores the received echo signal inputted to the pulser-receiver 12, a control unit 15 which controls a transmitting timing of the pulse signal from the pulser-receiver 12 to the ultrasound probe 11 and controls writing of the received echo signal to the memory unit 14, and a power supply unit 19 which supplies power to the pulse-receiver 12; a flexible member 25 which connects the plurality of parts of the ultrasound flaw detector with each other; and a centering member 26 which keeps the ultrasound probe 11 approximately centered within the tube. |
