Guided wave signal conditioner

Abstract

The invention provides a guided wave signal conditioner, which comprises: a communication module and a logic decoding module, whereinthe input end of the logic decoding module is connected with a userupper computer through the communication module; a dynamic load influence suppression module, afirst program-controlled voltage amplification module, anactive high-pass filtering module, anactive low-pass filtering module and asecond program-controlled voltage amplification module which are connected in sequence; acrosstalk suppression module which comprises a first crosstalk suppression unit, whereinthe first crosstalk suppression unit is arranged between the active low-pass filtering module and the second program control voltage amplification module,the output end of the logic decoding module is connected with the first program control voltage amplification module, the second program control voltage amplification module and the crosstalk suppression module. The guided wave signal conditioner is suitable for conditioning guided wave response signals of complex structures in a dynamic load environment, the signal-to-noise ratio of the guided wave response signals can be remarkably improved, and the accuracy of subsequent structural damage diagnosis can be remarkably improved.

Description

technical field [0001] The invention relates to the technical field of aerospace intelligent structure and health monitoring, in particular to a guided wave signal conditioner. Background technique [0002] When the structural health monitoring technology is applied in the aviation field, it uses the advanced sensing / driving elements integrated in the aircraft structure to obtain online and real-time information related to the health status of the aircraft structure, and combines advanced signal information processing methods to extract structural damage characteristic parameters , identify the structural state (including damage), and control the unsafe factors of the structure at an early stage to eliminate potential safety hazards, so as to realize the self-diagnosis of the aircraft structure, self-repair to ensure the safety of the structure and reduce maintenance costs. Among many structural health monitoring technologies, the structural health monitoring technology base...

AI Technical Summary

Problems solved by technology

[0005] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a guided wave signal conditioner, which is used to solve the problem that the guided wave signal conditioner in the prior art cannot meet the requirements of complex aeronautical structure dynamic load environment structural health monitoring technical problem

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