Title:
OPTICAL-FIBER SENSOR ARRAY
Document Type and Number:
Japanese Patent JPS60263865
Kind Code:
A
Abstract:
This invention provides a sensor array using a plurality of fiber optic sensors connected between transmit fibers and receive fibers. The laser transmitter supplies pulses to the transmit fiber and fiber optic couplers couple the pulses from the transmit fiber into the fiber optic sensors. The pulses from the laser transmitter may be frequency chirped or frequency stepped to provide passive sampling of interferometric sensors in addition to intensity sensors, or otherwise frequency modulated. Each sensor is configured to respond to changes in a predetermined physical parameter by altering the shape of the pulse thereto. Fiber optic couplers couple the sensor output signals into the receive fiber for input to a receiver, which converts the optical signals into electrical signals for input to a processor. A timing reference correlates the sensor output pulses with the sensors.
Inventors:
JIYOOJI EI PABURASU
Application Number:
JP10918185A
Publication Date:
December 27, 1985
Filing Date:
May 20, 1985
Export Citation:
Assignee:
LITTON SYSTEMS INC
International Classes:
G01D5/353; G01D21/00; G01H9/00; G01J1/02; G01D5/26; G01J9/00; G01N21/00; G01R9/00; G01R33/032; G02B6/00; G02B6/28; (IPC1-7): G01D5/26; G01R9/00; G01R33/032; G02B6/00
Attorney, Agent or Firm:
Kuro Fukami