Gauging surfaces by remotely tracking multiple images
US3986774A · kind A · utility
48Cited by
3References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 8, 1975 |
| Grant date | Oct 19, 1976 |
| Priority date | — |
| Expiry date | May 8, 1995 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B11/24
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system for measuring the surface contour of an object by tracking the image of a spot of radiation focused on the surface is disclosed. The radiation spot is imaged on a plurality of suitable detectors which are remote to the surface and connected electrically in parallel. Continuous data on the contour of the surface is provided even though irregularities on the surface interfere with the scattered radiation propagating along the line of sight to one of the detectors. This highly accurate system is servocontrolled and can be automated for recording, storing or displaying data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.