M. Kamiya et al., Analog data transmission through plastic optical fiber in robot with compensation of errors caused by optical fiber bending loss, IEEE IND E, 48(5), 2001, pp. 1034-1037
A new type of analog data transmission system using a plastic fiber is prop
osed, where a direct intensity modulation scheme has been employed together
with a differential amplifier to compensate for the transmission error cau
sed by the optical fiber bending loss. This system was experimentally appli
ed to transmit analog data of dimensions detected by the displacement senso
r attached to the robot arm tip to the robot basement through the plastic o
ptical fiber installed in the robot arm body.