1 August 1991 Optically powered sensor system using conventional electrical sensors
Author Affiliations +
Large-scale installation of optical fiber sensors in an industrial or military environment is handicapped for several reasons. However, optical fibers are widely accepted to be applied for data transmission. An optically powered sensor system is proposed in which conventional well-proven transducers and data transmission along optical fibers are combined. The fiber is also used to transmit 10 mW of optical power from a remote control unit to the sensor head. In the sensor head the optical power is converted into electrical power to supply the sensor and datatransmission electronics. When a minimum supply voltage level of 4 V is detected, the pressure or temperature is sampled and a pulse position modulated (PPM) signal is transmitted along the fiber to the control unit, where it is demodulated. Feasibility of the system was demonstrated in the laboratory, and field experiments are planned. Alternative system configurations are discussed, in which intelligence is incorporated in the sensor head.
© (1991) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
E. Nieuwkoop, E. Nieuwkoop, Theo Kapsenberg, Theo Kapsenberg, Gijs K. Steenvoorden, Gijs K. Steenvoorden, Anastasius J.A. Bruinsma, Anastasius J.A. Bruinsma, "Optically powered sensor system using conventional electrical sensors", Proc. SPIE 1511, Fiber Optic Sensors: Engineering and Applications, (1 August 1991); doi: 10.1117/12.45999; https://doi.org/10.1117/12.45999


Recycling optical fibers for sensing
Proceedings of SPIE (April 28 2016)
Laser diode supply for fiber optic sensors
Proceedings of SPIE (December 12 2000)
A plastic fiber optic liquid level sensor
Proceedings of SPIE (June 08 2004)

Back to Top