Patent · US Expired

Measuring apparatus

US6935935B2 · kind B2 · utility

1Cited by
16References
22Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 30, 2004
Grant dateAug 30, 2005
Priority date
Expiry dateApr 30, 2024

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01B11/0666
  • WIPO fieldMachine tools
  • WIPO sectorMechanical engineering

Abstract

A measuring apparatus includes a heating unit for applying heat to a first point within a workpiece or on a surface of a workpiece and propagating the heat to a second point within the workpiece or on the surface of the workpiece. The measuring apparatus further includes a measuring unit for measuring a displacement of the surface of the workpiece at the second point to which the heat has been propagated, and an analyzing unit for analyzing a structure of the workpiece based on the displacement measured by the measuring unit in consideration of a distance between the first point and the second point.

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