Optical fiber tension measuring device and system

Abstract

The invention relates to an optical fiber tension measuring device and system, and in particular relates to the field of tension detection. The optical fiber tension measuring device comprises a light source, a first stress part, a second stress part, an elastic part, an optical fiber and an optical detector, when tension needs to be detected, the tension acts on the first stress part and the second stress part of the optical fiber tension measuring device, under the action of the first stress part and the second stress part, the elastic part deforms, the elastic part acts tension and pressure on the optical fiber to enable the optical fiber to deform, and then the transmission loss of the optical fiber is changed, so that the light intensity of an optical signal emitted through the optical fiber is changed, and the emergent light intensity of the optical signal is detected through the optical detector; and according to the corresponding relationship between the light intensity and the to-be-measured tension, the to-be-measured tension is acquired.

Description

technical field [0001] The present application relates to the field of tension detection, in particular, to an optical fiber tension measurement device and system. Background technique [0002] The tensile force is within the elastic limit, and the deformation of the object under the action of the external force is proportional to the external force. The deformation varies with the direction of the force, and the force that makes the object extend is called "pull force" or "tension force". [0003] In the prior art, the tension is measured mainly by a tension device, and the calculation principle of the tension device is calculated by the formula f=w / s, where f represents the tension, w represents the length, and s represents the elastic coefficient of the spring, [0004] However, when the tension detection device of the mechanical structure in the prior art detects the tension, the tension detection device itself will also be deformed under the action of the tension. Gene...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a kind of optical fiber tension measuring device and system for the above-mentioned deficiencies in the prior art, so that when the tension detection device of the mechanical structure in the prior art detects the tension, the tension detection device itself will also Deformation occurs under the action of tension. Generally, when calculating the tension, the deformation of the tension detection device itself is ignored, and the tensile force to be measured is obtained only by calculating the deformation of the detection part of the tension detection device and the elastic coefficient of the detection part. There is a certain error in the detection of the pulling force, which makes the detection of the pulling force inaccurate

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