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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0852974 (1977-11-18) |
우선권정보 | JP-0059780 (1977-05-25); JP-0059781 (1977-05-25); JP-0059782 (1977-05-25) |
발명자 / 주소 |
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출원인 / 주소 |
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인용정보 | 피인용 횟수 : 27 인용 특허 : 1 |
A track displacement detecting and measuring system in which track displacement data are obtained as usual for a unit chord length of the track according to the conventional three-point measuring method by sensors mounted on three predetermined parts of a track inspection car, and such measured data
In a track displacement detecting and measuring system including three sensors mounted at the front, middle and rear parts of a track inspection car, respectively, said sensors mounted at the front and rear parts of the track inspection car being spaced apart from each other by a unit chord length,
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