Method of measuring quantity of heat applied to optical fiber

Details Method of measuring quantity of heat applied to optical fiber Method of measuring quantity of heat applied to optical fiber

1990-08-23

1991-04-23

Yasich, Daniel M.

Thermal measuring and testing

Calorimetry

156158, 219201, 350 9621, 374131, B65H 6908, G01K 1700, G02B 6255

Patent

active

050095137

ABSTRACT:
In a method of measuring a quantity of heat, the distance between the position of an end of an exposed fiber portion before heating and the position of the end after heating is measured, and the quantity of heat applied to the end of the exposed fiber portion is calculated based on the distance. When heat is applied to an end of an exposed fiber portion, the end is fused and is rounded due to surface tension. For this reason, the position of the end of the exposed fiber portion retracts from the position it occupied before heating by the volume required for rounding the end. This retraction amount corresponds to a quantity of heat applied to the end of the exposed fiber portion. Therefore, by meauring the retraction amount, the quantity of heat applied to the ends of the exposed fiber portion can be quantitatively measured.

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Patent Abstracts of Japan, vol. 9, No. 13 (P-328) [1736], Jan. 19, 1985; & JP-A-59 160 113 (Nippon Denshin Denwa Kosha) 10-09-1984.

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