Miniaturised Optical Fibre Sensor for Dew Detection Inside Organ Pipes
Figure 1
Sketch of the optoelectronic
configuration used to measure the reflectivity changes which occurs at the
distal end of the optical fibre. LD: laser diode; MPD: module to monitor the
laser diode emission; P: voltage control to keep the laser diode emission
constant; PD: hybrid photodetector; OUT1-3: signal output of the
light-to-voltage converters.