Fiber grating sensor insert for detection of plastic thick plate products and manufacturing method thereof

Abstract

The invention discloses a fiber bragg grating (FBG) sensor insert for detection of plastic thick plate products and a manufacturing method thereof. The insert comprises an embedded joint of an optical-fiber connector, a sealing plug of the optical-fiber connector, an FBG temperature sensor, an FBG strain sensor and a grating encapsulator; and the FBG temperature sensor and the FBG strain sensor are disposed in the insert side by side, the embedded joint of the optical-fiber connector and the sealing plug of the optical-fiber connector are disposed at an end portion of the insert, the FBG temperature sensor comprises a plurality of grating unit regions and a conducting optical fiber, the FBG strain sensor comprises a plurality of grating unit regions and a conducting optical fiber, and the grating encapsulator encapsulates the grating unit regions and the conducting optical fibers. The problems in aspects of positioning, fixing and protection of a fiber brgg grating, the problem in an aspect of a mode that the optical fibers are leaded out of the internal of a plate and the problem in an aspect of outlet protection are solved, implantation of the FBG sensor in a plastic thick plate, leading-out of the optical fibers and reliable connection of an external optical fiber are achieved, and temperature and strain in the plastic thick plate can be monitored in an on-line manner.

Description

technical field [0001] The invention relates to an optical fiber grating sensor insert for detecting plastic thick plate products and a manufacturing method thereof. Background technique [0002] In my country's modern industrial production, especially in the automated production process, it is necessary to use various sensors to monitor various parameters in the production process online to ensure the good operation of the equipment and the quality of the product. Industrial sensors include thermal sensors, light sensors, gas sensors, force sensors, magnetic sensors and many other types. "Made in China 2025" puts forward requirements for my country's manufacturing industry to upgrade industrial technology from automation to intelligence. Therefore, it requires continuous improvement in the level of intelligent monitoring, intelligent control, intelligent diagnosis, intelligent decision-making, and intelligent maintenance in the production process. The online health monitor...

AI Technical Summary

Problems solved by technology

The use of optical fiber connectors that physically connect the two end faces of the optical fiber cannot guarantee that all the optical energy of the transmitting optical fiber is coupled into the receiving optical fiber

Images