KR20190089027A - 자성 선상체의 손상 평가 방법 및 손상 평가 장치 - Google Patents
자성 선상체의 손상 평가 방법 및 손상 평가 장치 Download PDFInfo
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Abstract
Description
도 2는 손상 평가 장치의 일부 파단 측면도이다.
도 3은 손상 평가 장치의 하부를 부분적으로 도시하는 확대 사시도이다.
도 4는 센서군으로부터 출력되는 신호를 처리하는 처리 장치의 전기적 구성을 도시하는 블록도이다.
도 5는 부식을 갖는 텐돈의 검사 결과를 도시하고 있고, 텐돈의 반경 방향의 자속에 감응하는 홀 소자로부터 출력되는 출력 전압에 기초하여 산출되는 자속 밀도의 그래프이다.
도 6은 부식을 갖는 텐돈의 검사 결과를 도시하고 있고, 서치 코일로부터의 출력 전압에 기초하여 산출되는 자속의 그래프이다.
도 7은 부식을 갖는 텐돈의 검사 결과를 도시하고 있고, 텐돈의 축방향의 자속에 감응하는 홀 소자로부터 출력되는 출력 전압에 기초하여 산출되는 자속 밀도의 그래프이다.
10 : 텐돈
20 : 자화기
21 : 보빈
23 : 중심 구멍
24 : 여자 코일
26 : 철심(요크축)
31F, 31R : 주상 요크
32F, 32R : 판상 요크
41F, 41R : 서치 코일
51 : 프레임
52 : 롤러
61 : 홀 소자군
61a, 61r : 홀 소자
63 : 로터리 인코더
81 : 신호 처리 장치
82 : 기록 장치
Claims (16)
- 손상을 평가해야 할 자성 선상체가 매립된 콘크리트 구조물 상에 있어서, 자력을 발생시키는 자화기, 및 자화기가 발생시킨 자력에 의해 자화되는 상기 자성 선상체의 손상 개소로부터 생기는 자기 변화량을 검출하는 검출기를 포함하는 손상 평가 장치를, 상기 자성 선상체를 따라 이동시키고,
상기 자화기가, 여자 코일과, 상기 여자 코일의 중심 구멍에 삽입 관통된 요크축과, 상기 요크축의 양단에 접속되어, 콘크리트면을 향해 각각 신장되는 한 쌍의 주상 요크와, 상기 한 쌍의 주상 요크의 선단의 각각에 접속되어, 콘크리트면을 따르는 확장부를 갖는 자극을 형성하는 한 쌍의 판상 요크를 포함하고, 상기 여자 코일에 전류를 흐르게 함으로써, 상기 요크축, 한 쌍의 주상 요크, 한 쌍의 판상 요크, 및 한 쌍의 판상 요크 사이에 위치하는 범위의 자성 선상체를 포함하는 자기 회로를 형성하고,
상기 검출기에 의해 상기 자기 회로를 흐르는 자속을 검출하는, 자성 선상체의 손상 평가 방법. - 제1항에 있어서, 상기 검출기가, 상기 한 쌍의 주상 요크의 적어도 한쪽에 감긴 서치 코일인, 자성 선상체의 손상 평가 방법.
- 제1항에 있어서, 상기 검출기가, 상기 판상 요크의 저면에 고정된 홀 소자인, 자성 선상체의 손상 평가 방법.
- 손상을 평가해야 할 자성 선상체가 매립된 콘크리트 구조물 상에 있어서, 자력을 발생시키는 자화기, 및 자화기가 발생시킨 자력에 의해 자화되는 상기 자성 선상체의 손상 개소로부터 생기는 자기 변화량을 검출하는 검출기를 포함하는 손상 평가 장치를, 상기 자성 선상체를 따라 이동시키고,
상기 자화기가, 여자 코일과, 상기 여자 코일의 중심 구멍에 삽입 관통된 요크축과, 상기 요크축의 양단에 접속되어, 콘크리트면을 향해 각각 신장되는 한 쌍의 주상 요크와, 상기 한 쌍의 주상 요크의 선단의 각각에 접속되어, 콘크리트면을 따르는 확장부를 갖는 자극을 형성하는 한 쌍의 판상 요크를 포함하고, 상기 여자 코일에 전류를 흐르게 함으로써, 상기 요크축, 한 쌍의 주상 요크, 한 쌍의 판상 요크, 및 한 쌍의 판상 요크 사이에 위치하는 범위의 자성 선상체를 포함하는 자기 회로를 형성하고,
상기 검출기에 의해 상기 자성 선상체의 손상 개소로부터 누설되는 자속을 검출하는, 자성 선상체의 손상 평가 방법. - 제1항 또는 제4항에 있어서, 상기 한 쌍의 판상 요크간의 거리가, 상기 한 쌍의 판상 요크의 저면으로부터 상기 자성 선상체까지의 거리보다도 긴, 자성 선상체의 손상 평가 방법.
- 제4항에 있어서, 상기 검출기가, 상기 한 쌍의 판상 요크의 중간 위치에 마련되어 있는, 자성 선상체의 손상 평가 방법.
- 제4항에 있어서, 상기 검출기가 홀 소자인, 자성 선상체의 손상 평가 방법.
- 제7항에 있어서, 상기 자성 선상체의 반경 방향의 자속에 감응하는 방향을 갖는 복수의 상기 홀 소자가, 상기 여자 코일의 중심축의 방향과 직교하는 방향으로 일렬로 배치되어 있는, 자성 선상체의 손상 평가 방법.
- 제4항에 있어서, 상기 검출기가 서치 코일인, 자성 선상체의 손상 평가 방법.
- 제1항 또는 제4항에 있어서, 상기 손상 평가 장치가, 상기 자성 선상체에 대한 상기 손상 평가 장치의 위치를 검출하는 위치 검출 수단을 구비하고, 위치 검출 수단의 출력에 따라 상기 손상 평가 장치의 이동 경로를 결정하는, 자성 선상체의 손상 평가 방법.
- 제10항에 있어서, 상기 위치 검출 수단이, 상기 여자 코일의 중심축의 방향과 직교하는 방향으로 일렬로 배치된, 상기 자성 선상체의 축방향의 자속에 감응하는 방향을 갖는 복수의 홀 소자인, 자성 선상체의 손상 평가 방법.
- 손상을 평가해야 할 자성 선상체가 매립된 콘크리트 구조물 상에 설치되어 사용되고, 자력을 발생시키는 자화기, 및 자화기가 발생시킨 자력에 의해 자화되는 상기 자성 선상체의 손상 개소로부터 생기는 자기 변화량을 검출하는 검출기를 포함하는 손상 평가 장치이며,
이동량 센서를 포함하고, 상기 손상 평가 장치를 상기 자성 선상체를 따라 이동시키는 이동 장치를 구비하고,
상기 자화기가, 여자 코일과, 상기 여자 코일의 중심 구멍에 삽입 관통된 요크축과, 상기 요크축의 양단에 접속되어, 콘크리트면을 향해 각각 신장되는 한 쌍의 주상 요크와, 상기 한 쌍의 주상 요크의 선단의 각각에 접속되어, 콘크리트면을 따르는 확장부를 갖는 자극을 형성하는 한 쌍의 판상 요크를 포함하고, 상기 여자 코일에 전류를 흐르게 함으로써, 상기 요크축, 한 쌍의 주상 요크, 한 쌍의 판상 요크, 및 한 쌍의 판상 요크 사이에 위치하는 범위의 자성 선상체에 의해 자기 회로를 형성하는 것이고,
상기 검출기가, 상기 자기 회로를 흐르는 자속을 검출하는 자속 검출기인, 자성 선상체의 손상 평가 장치. - 손상을 평가해야 할 자성 선상체가 매립된 콘크리트 구조물 상에 설치되어 사용되고, 자력을 발생시키는 자화기, 및 자화기가 발생시킨 자력에 의해 자화되는 상기 자성 선상체의 손상 개소로부터 생기는 자기 변화량을 검출하는 검출기를 포함하는 손상 평가 장치이며,
이동량 센서를 포함하고, 상기 손상 평가 장치를 상기 자성 선상체를 따라 이동시키는 이동 장치를 구비하고,
상기 자화기가, 여자 코일과, 상기 여자 코일의 중심 구멍에 삽입 관통된 요크축과, 상기 요크축의 양단에 접속되어, 콘크리트면을 향해 각각 신장되는 한 쌍의 주상 요크와, 상기 한 쌍의 주상 요크의 선단의 각각에 접속되어, 콘크리트면을 따르는 확장부를 갖는 자극을 형성하는 한 쌍의 판상 요크를 포함하고, 상기 여자 코일에 전류를 흐르게 함으로써, 상기 요크축, 한 쌍의 주상 요크, 한 쌍의 판상 요크, 및 한 쌍의 판상 요크 사이에 위치하는 범위의 자성 선상체에 의해 자기 회로를 형성하는 것이고,
상기 검출기가, 상기 자성 선상체의 손상 개소로부터 누설되는 자속을 검출하는 누설 자속 검출기인, 자성 선상체의 손상 평가 장치. - 제12항 또는 제13항에 있어서, 상기 한 쌍의 판상 요크간의 거리가, 상기 한 쌍의 판상 요크의 저면으로부터 상기 자성 선상체까지의 거리보다도 긴, 자성 선상체의 손상 평가 장치.
- 제12항 또는 제13항에 있어서, 상기 자성 선상체에 대한 상기 손상 평가 장치 위치를 검출하는 위치 검출 수단이, 상기 손상 평가 장치에 마련되어 있는, 자성 선상체의 손상 평가 장치.
- 제15항에 있어서, 상기 위치 검출 수단이, 상기 여자 코일의 중심축의 방향과 직교하는 방향으로 일렬로 배치된, 상기 자성 선상체의 축방향의 자속에 감응하는 방향을 갖는 복수의 홀 소자인, 자성 선상체의 손상 평가 장치.
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| PCT/JP2016/085704 WO2018100709A1 (ja) | 2016-12-01 | 2016-12-01 | 磁性線状体の損傷評価方法および損傷評価装置 |
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| KR20210070060A (ko) * | 2019-12-04 | 2021-06-14 | 한국표준과학연구원 | 케이블 결함 검사 장치 |
| KR20230087778A (ko) * | 2021-12-10 | 2023-06-19 | 이정우 | 포터블 슬링벨트 손상진단장치 |
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| KR102178721B1 (ko) * | 2020-08-24 | 2020-11-13 | 한국건설기술연구원 | 유도전압 측정을 이용한 텐던의 손상 탐지방법 및 손상 탐지장치 |
| JP7521408B2 (ja) * | 2020-12-17 | 2024-07-24 | オムロン株式会社 | 金属検出センサおよびこれを備えた電動把持工具、金属検出方法、金属検出プログラム |
| CN115629121A (zh) * | 2022-10-21 | 2023-01-20 | 青岛明思为科技有限公司 | 一种适用于不同直径钢丝绳无损检测的漏磁检测传感器 |
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Also Published As
| Publication number | Publication date |
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| JP6660486B2 (ja) | 2020-03-11 |
| CN110023747A (zh) | 2019-07-16 |
| JPWO2018100709A1 (ja) | 2019-10-17 |
| CN110023747B (zh) | 2023-01-13 |
| WO2018100709A1 (ja) | 2018-06-07 |
| KR102167975B1 (ko) | 2020-10-21 |
| US11016060B2 (en) | 2021-05-25 |
| US20190285585A1 (en) | 2019-09-19 |
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