A fiber grating strain detection device

Abstract

The invention discloses an optical fiber grating strain detection device, which comprises a base on which a support frame is movably installed, the end of the support frame away from the base is connected with a mounting seat, and the upper end surface of the mounting seat is fixed with a drive chamber; The optical fiber grating strain detection device controls the vertical feed of the fixed seat through the lifting screw, which is convenient for adjusting the distance between the optical fiber grating and the pressure block, so that it is suitable for the detection of optical fiber gratings of different specifications; the eccentric wheel is driven by the meshing of the worm gear, It is convenient to control the feed rate of the pressure plate and improve the detection accuracy; by setting a limit block in the limit groove, it is convenient to control the clamping force of the fiber grating and avoid damage; through the cooperation of the guide rod and the guide spring, the fixed seat The operation is stable and easy to adjust; in addition, the straight movement of the mounting seat is controlled by the feed screw, which is convenient for controlling the relative position of the pressure block and the fiber grating, and realizes multi-point detection.

Description

A fiber grating strain detection device technical field The present invention relates to a kind of detection equipment, specifically a kind of fiber grating strain detection device. Background technique Fiber grating is a kind of fiber grating which is formed by periodically modulating the refractive index of the fiber core by a certain method. The diffraction grating is a kind of passive filter element, because the grating fiber has small size, low splice loss, and is fully compatible with optical fiber, It can be embedded in smart materials and other advantages, and its resonant wavelength is sensitive to changes in the external environment such as strain, refractive index, concentration, etc. Therefore, it has been widely used in the field of optical fiber communication and sensing. Fiber grating needs to be in the actual production and processing process For strain detection, the existing strain detection device is inconvenient to control the detected feed amoun...

AI Technical Summary

Problems solved by technology

Fiber Bragg grating needs strain detection in the actual production and processing process. The existing strain detection device is not convenient to control the detection feed rate for different specifications of fiber gratings, which reduces the actual detection efficiency; therefore, it is necessary to carry out the existing technology Improve

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