Optical Position Gauge.
Abstract
This patent discloses apparatus for measuring the direction, extent and rate of linear displacement of a body (e.g. a steel bulkhead) subjected to a harsh environment such as shock from an explosive force. a housing containing an extendable piston is connected between the movable body and a fixed structure. The piston has a surface marked with alternating high and low light reflecting bands which pass under a pair of light emitting optical fibers fixed on the housing. Light reflected from the bands is detected and converted into corresponding out of phase electrical signals for measuring direction, extent and rate of linear displacement of the piston.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 30, 1986
- Accession Number
- ADD013496
Entities
People
- Patrick Davis
- Paul Smith
- Steve Lee
Organizations
- United States Department of the Navy