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公开(公告)号：KR1020140017789A
公开(公告)日：2014-02-12
申请号：KR1020120084325
申请日：2012-08-01
Applicant: 한국과학기술원
CPC classification number: G01N29/2418 , F03D17/00 , F05B2270/8042 , G01M5/0016 , G01M5/0033 , G01M5/0066 , G01M5/0091 , G01M7/00 , G01N29/04 , G01N29/043 , G01N29/069 , G01N29/4427 , G01N2291/023 , G01N2291/0258 , G01N2291/0289 , G01N2291/2634 , G01N2291/2693
Abstract: The present invention relates to an integrity assessment system for managing a rotational structure such as an efficient turbine blade by enabling workers at a work site to easily and intuitively confirm information for the position and size of damage through visualizing the interaction between the damage and ultrasonic wave progress. The system of the present invention comprises an ultrasonic wave generating system for generating an ultrasonic wave by irradiating a pulse laser to one side of the rotational structure; a pulse laser control system for controlling the timing of irradiating the pulse laser; an ultrasonic wave measurement system for measuring the ultrasonic wave generated from the other side of the rotational structure; and a damage detection system for visualizing the measured ultrasonic signal and automatically providing information regarding any damage to the rotational structure, and if so, the location and intensity of such damage. [Reference numerals] (11) Pulse laser; (21) Position confirmation; (22) Angle sensor; (30) Data collection; (41) Ultrasonic wave visualization; (42) Sensing damage automatically; (AA) Main computer; (BB) Image processing; (CC,DD) Control; (EE) Synchronization
Abstract translation: 本发明涉及一种完整性评估系统，用于通过使工作现场的工作人员能够通过可视化损伤和超声波之间的相互作用来容易且直观地确认损伤位置和尺寸的信息来管理诸如高效涡轮叶片的旋转结构 进展。 本发明的系统包括：超声波发生系统，用于通过在旋转结构的一侧照射脉冲激光来产生超声波; 用于控制照射脉冲激光器的定时的脉冲激光控制系统; 超声波测量系统，用于测量从旋转结构的另一侧产生的超声波; 以及用于使所测量的超声信号可视化并自动提供关于对旋转结构的任何损伤的信息的损伤检测系统，以及如果是，则该损伤的位置和强度。 （11）脉冲激光; （21）职位确认; （22）角传感器; （30）数据收集; （41）超声波可视化; （42）自动感应伤害; （AA）主机; （BB）图像处理; （CC，DD）控制; （EE）同步
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公开(公告)号：KR101851718B1
公开(公告)日：2018-04-24
申请号：KR1020160119443
申请日：2016-09-19
Applicant: 한국과학기술원
Abstract: 레이저빔을타겟스트럭처에조사하고, 레이저빔에의해생성되는초음파신호를이용하여타겟스트럭처의손상을검출하는손상검출장치의손상검출방법은타겟스트럭처의복수의검사라인들중 타겟라인을선택하고, 타겟라인을복수의블록그룹들로나누고블록그룹들중 손상된영역을포함하는손상블록그룹을검색하는제1 스캐닝동작을수행하며, 손상블록그룹에대해이진탐색방식으로경계손상블록들을검색하는제2 스캐닝동작을수행하고, 경계손상블록들에기초하여타겟스트럭처의손상블록을검출한다.
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公开(公告)号：KR1020160116925A
公开(公告)日：2016-10-10
申请号：KR1020150045358
申请日：2015-03-31
Abstract: 검사장치는피검체의목표지점또는목표지점으로부터미리설정된거리만큼떨어진계측지점에레이저를조사하는레이저조사부, 목표지점에레이저가조사된경우, 계측지점에서의정방향계측데이터를생성하고, 계측지점에레이저가조사된경우, 목표지점에서의역방향계측데이터를생성하는계측부, 및정방향계측데이터와역방향계측데이터의자기상관도및 상호상관도에기초하여피검체의결함을판단하는신호처리부를포함한다.
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公开(公告)号：KR101539599B1
公开(公告)日：2015-08-06
申请号：KR1020130155308
申请日：2013-12-13
Applicant: 한국과학기술원
Abstract: 본발명은다중밀도비접촉식레이저스캐닝을통한구조물손상진단고속화장치에관한것으로서, 구조물에레이저를조사하여초음파를생성하는펄스레이저, 상기구조물에생성된초음파를측정하는초음파측정기, 상기펄스레이저와상기초음파측정기를제어하는회전거울, 상기초음파생성점과측정점쌍에서수집된신호를해석하고손상반사초음파성분을추출하여상기구조물의손상위치를추정하는손상반사추출모듈, 단일경로에서양방항초음파신호를수집하고상관관계를분석하여상기구조물의손상위치를추정하는상관관계분석모듈및 상기초음파측정기에서측정된데이터를영상화하여손상정보를추출하고자동으로판별하는영상처리모듈을포함하는것을특징으로한다. 본발명에따른다중밀도비접촉식레이저스캐닝을통한구조물손상진단고속화장치는구조물을저밀도로스캐닝하여손상반사추출모듈또는상관관계분석모듈로대략적인손상위치를추정하고추정된손상영역에대하여고밀도로스캐닝하여영상처리하여, 대형구조물을빠르고정확하게손상진단을수행하는장점이있다.
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