bobbin for optical fiber and method for winding

摘要

A fiber optic sensor coil (100) is wound from a length of optical fiber with the mid-point (M) of the optical fiber at the mid-point of the innermost layer (1) of the coil and subsequent layers (2-28) of the coil each have alternating turns of the two sections of the fiber emanating from the mid-point. The layers of alternating turns are formed by first winding a portion of one segment in such a fashion that adjacent turns are spaced apart by a distance equivalent to the diameter of the optical fiber. The layer is completed by winding a portion of the other segment such that the turns of the other segment are disposed between adjacent turns of the one segment. The number of turns in adjacent layers are unequal such that the turns of a next layer are arranged in grooves formed between two adjacent turns of optical fiber in the previous layer.