Verfahren und Vorrichtung zur Zugprüfung von verspleißten Fasern in Faserspleißgeräten

摘要

Tensile stress after splicing is checked in existing splicing devices by a return spring, whereby the tensile stress used in testing is regulated before the operation of said devices and cannot be changed thereafter. The aim of the invention is to provide a method to enable users to adjust said tensile stress. An adjustment device is provided in a fiber splicing device enabling the first piece of a fiber to move vertically in relation to its end surface so that said adjustment device consists of at least one piezo actuator (11) and one drive unit (12). The piezo actuator (11) is loaded with a pre-regulated electrical voltage once both fiber ends have been spliced. The electrical voltage in the piezo actuator (11) is measured and compared with pre-regulated values when a first carriage (3) moves away perpendicularly from the end surface. This enables fiber tensile stress to be determined according to the travel of the first carriage (3) so that the drive unit (12) can be stopped after a pre-regulated tensile stress which is to be used for testing has been reached.