US 12,117,418 B2
Ultrasonic inspection device and inspection method
Masakazu Kamibayashi, Tokyo (JP); Atsushi Sugiura, Tokyo (JP); and Takuro Masuda, Kanagawa (JP)
Assigned to MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo (JP)
Appl. No. 17/611,675
Filed by Mitsubishi Power, Ltd., Yokohama (JP)
PCT Filed May 18, 2020, PCT No. PCT/JP2020/019663
§ 371(c)(1), (2) Date Nov. 16, 2021,
PCT Pub. No. WO2020/235529, PCT Pub. Date Nov. 26, 2020.
Claims priority of application No. 2019-094603 (JP), filed on May 20, 2019.
Prior Publication US 2022/0236232 A1, Jul. 28, 2022
Int. Cl. G01N 29/24 (2006.01); G01N 29/04 (2006.01); G01N 29/22 (2006.01); G01N 29/265 (2006.01); G01N 29/30 (2006.01)
CPC G01N 29/24 (2013.01) [G01N 29/04 (2013.01); G01N 29/225 (2013.01); G01N 29/265 (2013.01); G01N 29/30 (2013.01); G01N 2291/044 (2013.01); G01N 2291/2694 (2013.01)] 17 Claims
OG exemplary drawing
 
1. An ultrasonic inspection device for ultrasonically inspecting a rotor disc, the device comprising:
an ultrasonic probe that transmits an ultrasonic wave to a disc surface of the rotor disc;
a holding portion that movably holds the ultrasonic probe relative to the disc surface of the rotor disc;
a moving portion that causes the ultrasonic probe to move in a direction that intersects a radial direction of the rotor disc;
an adjustment portion that adjusts a moving direction of the moving portion;
a position detecting portion that detects a radial position of the ultrasonic probe being held relative to the disc surface; and
a control portion that controls the adjustment portion on the basis of information detected by the position detecting portion such that the radial position of the ultrasonic probe falls within a predetermined range.