Patent · US Expired

Apparatus for inspecting difficult to access objects

US6181411A · kind A · utility

11Cited by
5References
13Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 14, 1998
Grant dateJan 30, 2001
Priority date
Expiry dateAug 14, 2018

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01N2021/9546
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

Apparatus for inspecting the surfaces of inaccessible objects such as the components of a nuclear power plant steam generator includes: an articulated inspection wand having a proximal end and a distal end movable into position adjacent the surface to be inspected, a laser light source located remotely from the distal end, first and second position sensing detectors located remotely from the distal end of the wand, first and second extending imaging light guides extending from the laser light source, and the position sensing detectors to the distal end of the wand.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.