Method of electroless composite plating of Ni-P-ZrO2 for fiber grating sensor

Abstract

The invention relates to a method for electroless composite plating of Ni-P-ZrO2 through a fiber grating sensor, comprising the steps of: firstly, removal of a coating; secondly, oil removal; thirdly, coursing; fourthly, sensibilization; fifthly, activation; sixthly, electroless composite plating of the Ni-P-ZrO2. The method has the advantages that: firstly, due to electroless composite plating of the Ni-P-ZrO2 through the fiber grating sensor, the rigidity, the high temperature oxidation resistant performance and the corrosion resistant performance of a cladding are increased and fiber gratings are protected better so as to lay a foundation for realization of an intelligent fiber metal structure; secondly, the composite cladding plays a part in sensing sensitivity enhancement of the fiber grating sensor.

Description

technical field [0001] The invention relates to an optical fiber grating sensor chemical composite plating Ni-P-ZrO 2 method. Background technique [0002] Intelligent structure (Intelligent / Smart Structures) is a new discipline gradually formed by the intersection of multiple disciplines. By embedding fiber optic grating (FBG) sensors into metal components, intelligent metal components can be obtained. Smart metal structures can be applied to many fields such as aerospace and civil industry. Smart metal structures can monitor and respond to the overall temperature, stress, and strain of the structure in real time, and realize all-round control of the working status of the metal structure, thereby improving Structure, system security and reliability. Although the application prospects of smart metal structures are very broad, there are still very few smart structures based on metal materials at home and abroad. The key reason is that it is very difficult to embed FBG senso...

AI Technical Summary

Problems solved by technology

Although the application prospects of smart metal structures are very broad, there are still very few smart structures based on metal materials at home and abroad. The key reason is that it is very difficult to embed FBG sensors in metals, FBG has poor thermal stability, and the melting temperature of general metals Very high, the sensor is difficult to withstand high temperature damage, which requires protection of the FBG

Since the surface of the fiber grating sensor is very small, it is difficult to plate a uniform metal film on the surface by electron sputtering and vacuum evaporation.

Because these two methods need to be carried out at about 300 ° C, and ordinary optical fibers are prone to brittle fracture at this temperature, and the grating is easily degraded at this temperature