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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Применить Всего найдено 3. Отображено 3.
02-12-2015 дата публикации

Apparatus and method for scanning a structure and collimator therefor

Номер: GB0002526673A
Автор: FEATONBY PAUL DAVID [GB], RONCHI EMANUELE [GB] , Paul David Featonby, , Emanuele Ronchi, FEATONBY PAUL DAVID, RONCHI EMANUELE, PAUL DAVID FEATONBY, EMANUELE RONCHI
Принадлежит:

An apparatus 10 for scanning a structure (pipe) 100 to detect density differences comprises a source of gamma radiation 20, a plurality of first detectors 30 arranged to detect radiation along a plurality of first paths 32, a plurality of second detectors 40 arranged to detect radiation along a plurality of second paths 42, each path being substantially aligned with a respective radius of a circle centred on the source, and an angular separation between neighbouring first paths is S. The first and second detectors and the source are arranged for rotation in a fixed relationship with respect to each other, about an axis 60 located between the source and detectors and substantially orthogonal to said circle. There are 2N+1 detectors, the first paths are located on a first side of a plane containing the source and said axis of rotation and the positions DL of the first detectors are DL=nS, where n=0,1,2...N, and the second paths are located on a second side of said plane and the positions ...

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Номер записи: 1
01-07-2015 дата публикации

Scanning method

Номер: GB0002521767A
Автор: FEATONBY PAUL DAVID [GB], RONCHI EMANUELE [GB], FEATONBY PAUL DAVID, RONCHI EMANUELE, PAUL DAVID FEATONBY, EMANUELE RONCHI
Принадлежит:

Scanning apparatus comprises a source of gamma radiation and an array of radiation detectors fixed in relationship to the source and rotating around an object. Normalized count data are collated in a matrix with rows corresponding to individual detectors and columns corresponding to scan position or angle. Patterns of counts higher or lower than a mean value, represented in colour, are detected and a change of density in the object is inferred. A pattern recognition algorithm may be used. A tomographic image may be formed of the object. Thsi may be used to find defects in undersea pipelines.

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Номер записи: 2
23-04-2014 дата публикации

Density Profiler

Номер: GB0002507174A
Автор: FEATONBY PAUL DAVID [GB], HOWE GEOFFREY STUART [GB], HOUGH TIMOTHY [GB], FEATONBY PAUL DAVID, HOWE GEOFFREY STUART, HOUGH TIMOTHY, PAUL DAVID FEATONBY, GEOFFREY STUART HOWE, TIMOTHY HOUGH
Принадлежит:

A nucleonic instrument such as a level gauge or density profiler including a detector probe suitable for use in locations having a high ambient temperature. An array of radiation sources and a further array of detectors forming the detector probe are mounted on supports. A heat pipe cools the detector probe.

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Номер записи: 3