Chapter 6: Modulation Method 1
Reflective Mode
Basic setup
Basic Principle
Reflected Power, Pr = f
Pr is depends on probe configuration
Input source variation and component losses must be compensated
Probe configurations
Output characteristics
IMOFS for reflective mode
Temperature sensor
Metallic cylinder
Filled with wax as a medium
Output
Optical Power with d in different configurations
Transmission Mode
Example of IMOFS
Microbending Effect
Basic setup
Basic principle
Loss Compensation scheme
Intensity Modulated Sensor