Guided wave signal conditioner

A signal conditioner and guided wave technology, applied in the direction of frequency selection two-terminal-pair network, multi-terminal-pair network, etc., can solve the problem that the guided wave signal conditioner cannot meet the dynamic load environment structural health monitoring of complex aeronautical structures, and achieves signal-to-noise performance. The effect of improving the ratio, improving the accuracy, and suppressing the amplitude of the crosstalk signal

Inactive Publication Date: 2020-09-22
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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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 t

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Embodiment Construction

[0031] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention.

[0032] see Figure 1-8 . It should be noted that the diagrams provided in this embodiment are only schematically illustrating the basic idea of ​​the present invention, and only the components related to the present invention are shown in the diagrams rather than the number, shape and shape of the components in actual implementation. Dimensional drawing, the type, quantity and proportion of each component can be changed arbitrarily d...

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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...

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Application Information

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IPC IPC(8): H03H11/04
CPCH03H11/04
Inventor 邱雷袁慎芳丁睿张强
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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