Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Method and device for contactless optical measurement of distance changes

Method and device for contactless optical measurement of distance changes

US Patent 4884888 · Granted Dec 5, 1989

Assignee

No assignee recorded.

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Method of testing open but not completely visible cavities2000
Method of measuring a mass flow distribution of a flow2000
Test device for impinging a sample with a high-energy gas jet1999
Method of adjusting a laser doppler anemometer1999
Method for determining the velocity of a flow1997
Process and apparatus for the evaluation of timing signals with periodic compone1992
Doppler fluid flow velocity measuring apparatus and method utilizing imaging of 1991
Device for measuring pressures and variations of pressure with time1986