Cover plate type fiber bragg grating sensor and packaging method thereof

Abstract

The invention discloses a cover plate type fiber bragg grating sensor and a packaging method thereof. The cover plate type fiber bragg grating sensor comprises a grating and a protection sleeve, wherein a wire jumper and tensile fibers are fixed in the protection sleeve. One end of the protection sleeve is fixedly connected with a flange interface, and the other end of the protection sleeve is fixedly connected with a temperature sensing box. The grating is packaged in the temperature sensing box, the wire jumper and the grating are connected with each other in the temperature sensing box. The packaging method of the cover plate type fiber bragg grating sensor includes preparing the sleeve, painting temperature-resistant AB glue, welding the wire jumper and the grating in fusion mode, leading the wire jumper to penetrate through the protection sleeve, fixing one end of the wire jumper not provided with the grating with the flange interface, arranging the grating at the central position of a sensing protection groove, and buckling a packaging cover plate on the sensing protection groove. Compared with the prior art, the cover plate type fiber bragg grating sensor is good in mechanical performance, sensor performance, insulation performance and firmness, and improves sensor firmness, data collection accuracy and data collection speed. The packaging method of the cover plate type fiber bragg grating sensor greatly improves production efficiency and production survival rate, simultaneously improves sensor firmness and enables the sensor not to split or fall easily.

Description

technical field [0001] The invention belongs to the field of sensors, and in particular relates to a temperature sensor and the production of the sensor. Background technique [0002] Fiber Bragg grating sensors are widely used in temperature monitoring of power and electrical equipment due to their wide measurement range, high measurement accuracy, intrinsic insulation, passive, and long life. It directly affects the reliability of the power and electrical equipment under test. Traditional fiber grating sensors generally use metal or ceramic materials, and use a single sensor packaging method such as threading or gluing. However, when this method is used to package the grating, the core temperature-sensing component of the sensor, it is prone to problems such as difficult packaging of the grating and loose packaging. , Unreliable, with the influence of time, external force and other factors, there are problems such as easy falling off and low production yield. At the same ...

AI Technical Summary

Problems solved by technology

Traditional fiber grating sensors generally use metal or ceramic materials, and use a single sensor packaging method such as threading or gluing. However, when this method is used to package the grating, the core temperature-sensing component of the sensor, it is prone to problems such as difficult packaging of the grating and loose packaging. , Unreliable, with the influence of time, external force and other factors, there are problems such as easy falling off and low production yield. At the same time, there are also problems such as ceramic sensors are easy to break during installation and debugging, which is not conducive to on-site implementation.

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