Air damped linear optical fiber dispenser

Details Air damped linear optical fiber dispenser Air damped linear optical fiber dispenser

F - Mech Eng,Light,Heat,Weapons

41

G

F41G 7/32 (2006.01) B65H 49/02 (2006.01) F42B 15/04 (2006.01) G02B 6/44 (2006.01)

Patent

CA 2085287

AIR DAMPED LINEAR OPTICAL FIBER DISPENSER ABSTRACT OF THE DISCLOSURE An optical fiber canister (40) comprises a tapered cylindrical bobbin (42) having a length of optical fiber (28) wound thereon to form a fiber pack (43). The optical fiber (28) is wound so as to pay out with a preselected circumferential payout direction component (45), as well as a longitudinal payout direction component. The canister (40) has an optical fiber payout opening (50) through which the optical fiber (28) is paid out. An air duct (60, 62, 90) from the exterior of the canister (40) to the interior of the canister (40) has an air outlet (70) within the interior of the canister (40) oriented to direct the air flow oppositely to the preselected circumferential payout direction (45). The optical fiber canister (40) may be mounted within a missile (20), and the air duct (90) desirably extends from the exterior of the missile (20) to the interior of the canister (40), to provide a velocity-dependent air flow that damps out the helical motion of the optical fiber (28) during payout, permitting the optical fiber (28) to be paid out smoothly even though the payout opening (50) is small.

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