27-07-2012, 12:03 PM
OPTICAL SENSORS AND THEIR APPLICATIONS
[attachment=29203]
INTRODUCTION
NEW REVOLUTION OF OPTICAL FIBER SENSORS
IT IS A “SPIN-OFF” FROM OTHER OPTICAL TECHNOLOGIES
SEEING THE POTENTIAL IN SENSING APPLICATIONS – DEVELOPED AS ITS OWN FIELD
WHY OPTICAL SENSORS
ELECTROMAGNETIC IMMUNITY
ELECTRICAL ISOLATION
COMPACT AND LIGHT
BOTH POINT AND DISTRIBUTED CONFIGURATION
WIDE DYNAMIC RANGE
AMENABLE TO MULTIPLEXING
WORKING PRINCIPLE
LIGHT BEAM CHANGES BY THE PHENOMENA THAT IS BEING MEASURED
LIGHT MAY CHANGE IN ITS FIVE OPTICAL PROPERTIES i.e INTENSITY, PHASE, POLARIZATION,WAVELENGTH AND SPECTRAL DISTRIBUTION
STRAIN SENSORS
FIBER BRAGG GRATINGS (FBG) TECHNOLOGY
SENSES AS LITTLE AS 9 MICROSTRAIN
NRL and UNITED TECHNOLOGY RESEARCH
BIOMEDICAL SENSORS
SPECTROSCOPIC BIOMEDICAL SENSORS
CO 2, O 2 and pH CAN BE MEASURED SIMULTANEOUSLY
FLOW MONITORING BY LASER DOPPLERIMETRY
[attachment=29203]
INTRODUCTION
NEW REVOLUTION OF OPTICAL FIBER SENSORS
IT IS A “SPIN-OFF” FROM OTHER OPTICAL TECHNOLOGIES
SEEING THE POTENTIAL IN SENSING APPLICATIONS – DEVELOPED AS ITS OWN FIELD
WHY OPTICAL SENSORS
ELECTROMAGNETIC IMMUNITY
ELECTRICAL ISOLATION
COMPACT AND LIGHT
BOTH POINT AND DISTRIBUTED CONFIGURATION
WIDE DYNAMIC RANGE
AMENABLE TO MULTIPLEXING
WORKING PRINCIPLE
LIGHT BEAM CHANGES BY THE PHENOMENA THAT IS BEING MEASURED
LIGHT MAY CHANGE IN ITS FIVE OPTICAL PROPERTIES i.e INTENSITY, PHASE, POLARIZATION,WAVELENGTH AND SPECTRAL DISTRIBUTION
STRAIN SENSORS
FIBER BRAGG GRATINGS (FBG) TECHNOLOGY
SENSES AS LITTLE AS 9 MICROSTRAIN
NRL and UNITED TECHNOLOGY RESEARCH
BIOMEDICAL SENSORS
SPECTROSCOPIC BIOMEDICAL SENSORS
CO 2, O 2 and pH CAN BE MEASURED SIMULTANEOUSLY
FLOW MONITORING BY LASER DOPPLERIMETRY