Device for inspecting a pipeline
AssigneeFraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
InventorChristian W. Frey
Life of this patent
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Abstract
A device to inspect a pipeline includes an optical system for contactless detection of an interior contour of the pipeline by optical triangulation, with the optical system being attachable to a carrier structure, which is insertable in a pipeline. The optical system includes at least n≧2 triangulation sensors or light section sensors disposed rotatably about a common axis of rotation and by the n triangulation sensors or n light section sensors being disposed about the common axis of rotation spaced the greatest possible distance apart angle-wise.
Claims11
A device to inspect a pipeline, comprising:
- an optical system for contactless detection of an interior contour of a pipeline by optical triangulation, with the optical system being attachable to a carrier structure, which is insertable in the pipeline,
- wherein the optical system comprises at least two triangulation sensors or light section sensors disposed rotatably about a common axis of rotation, and
- wherein the at least two triangulation sensors or light section sensors are disposed about the common axis of rotation spaced the greatest possible distance apart angle-wise,
- wherein the optical system is designed as a rotatable sensor head which is attached to the carrier structure and comprises:
- a stationary part which is connected to the carrier structure and which is articulated to a motor-driven, rotatable part to which the at least two triangulation sensors or light section sensors are attached,
- a rotary drive unit which is directly or indirectly connected to the stationary part and which supplies signals and energy to an external unit via a cable, and
- a transmission unit which is connected at least partly to the stationary part and ensures contactless signal exchange between and to the triangulation sensors or light sensors attached to the rotatable part as well as contactless supplying of energy to the triangulation or light sensors.
A device to inspect a pipeline, comprising:
- a stationary part connected with a rotary drive;
- a rotatable part positioned in a longitudinal direction to the stationary part and which engages the rotary drive, wherein the rotatable part serves as a platform for at least two triangulation laser sensors or light section sensors, wherein beams of said at least two laser triangulation sensors or light section sensors are oriented perpendicular to an axis of rotation about which the rotatable platform rotates;
- and
- a transmission unit comprising two coil elements, one coil element being connected to the stationary part, and the other coil element being connected to the rotatable part, wherein the transmission unit ensures contactless energy transmission and signal transmission between the stationary part and the rotatable part.
Dependencies are inferred from the claim text.