PIPE NONDESTRUCTIVE INSPECTION SYSTEM USING PARALLEL SIGNAL PROCESSING STRUCTURE AND INSPECTION METHOD USING THE SAME

• Main Authors: JUNG, HAE KYO, PARK, JAE HA, KOO, SUNG JA, KIM, DONG KYU, RHO, YONG WOO, KIM, HAK JOON, YOO, JUNG SOO, YOO, HUI RYONG, KIM, DAE KWANG, CHO, SUNG HO
• Format: Patent
• Language: English; Korean
• Published: 24.08.2016
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS; MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS; PHYSICS; TESTING

According to an embodiment of the present invention, a pipe nondestructive inspection system using a parallel signal processing structure comprises: at least one coil sensor generating a sensing signal by detecting a change in spread time of an eddy current in accordance with a change in a pipe thickness in a remote field; and at least one sensing signal processing module generating an amplitude value (R) and a phase difference value () by processing the sensing signal inputted from the coil sensor. The sensing signal processing module is provided to correspond to each of the coil sensor to improve a signal processing speed by parallel processing a plurality of sensing signals at the same time, and improve accuracy of the inspection system. 본 발명의 일 실시예에 따른 병렬형 신호처리구조를 이용한 배관의 비파괴 검사시스템은 원격필드에서의 배관두께 변화에 따른 와전류의 전파시간의 변화를 감지하여 센싱신호를 생성하는 적어도 하나 이상의 코일센서, 상기 코일센서로부터 입력된 센싱신호를 처리하여 진폭값(R) 및 위상차값(θ)을 생성하는 적어도 하나 이상의 센싱신호처리모듈을 포함하며, 상기 센싱신호처리모듈은 각각의 코일센서에 대응되도록 구비되어, 복수의 센싱신호를 동시에 병렬로 처리하여 신호처리속도를 향상시키고, 검사시스템의 정확도를 향상시킨다.