Patent ID: 7612878

Claim:
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.