Optical Position Gauge.
Patent Application, Filed 30 Oct 86,
DEPARTMENT OF THE NAVY WASHINGTON DC
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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.
- Test Facilities, Equipment and Methods
- Reciprocating and Rotating Engines
- Ammunition and Explosives