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Health-care monitoring system with multichannel, integrated piezoelectric scanning structure

A health monitoring system, integrated piezoelectric technology, applied in diagnostic recording/measurement, medical science, sensors, etc., can solve problems such as inconvenient switching, and achieve the effects of convenient configuration, high integration, and convenient operation

Active Publication Date: 2008-12-10
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing large instrument systems are extremely inconvenient in the switching of each channel of the piezoelectric excitation-sensing network array

Method used

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  • Health-care monitoring system with multichannel, integrated piezoelectric scanning structure
  • Health-care monitoring system with multichannel, integrated piezoelectric scanning structure
  • Health-care monitoring system with multichannel, integrated piezoelectric scanning structure

Examples

Experimental program
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Embodiment Construction

[0026] Such as figure 1 As shown, the multi-channel integrated piezoelectric scanning structural health monitoring system in this embodiment includes a terminal processor, a piezoelectric arbitrary excitation waveform generation module, a piezoelectric response high-speed data acquisition module, a digital I / O module, and a program-controlled gain charge amplifier module , a multi-channel scanning switching module and a high-frequency broadband power amplification module, wherein the terminal processor, piezoelectric arbitrary excitation waveform generation module, piezoelectric response high-speed data acquisition module, digital I / O module, and program-controlled gain charge amplifier module are connected to On the unified computer bus, each module communicates with the terminal processor through the bus; the terminal processor module transmits the excitation signal in the form of digital quantity to the piezoelectric arbitrary excitation waveform generation module through th...

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Abstract

An integrated multi-channel piezoelectric scanning system for monitoring the health of large engineering structure is composed of terminal processor, the piezoelectric module for generating exciting waveforms, the piezoelectric module for high-speed data acquisition, digital I / O module, program controlled gain charge amplifier module, multi-channel scanning and switching module, HF broad-band power amplifier module, and computer bus.

Description

1. Technical field: [0001] The invention relates to a structural health monitoring system, in particular to a multi-channel integrated scanning system for controlling a piezoelectric excitation-sensing network to realize structural health monitoring. 2. Background technology: [0002] The basic idea of ​​structural health monitoring is to integrate sensors, signal information processing components, and even drivers, controllers, and structural materials, so that structural materials can sense their own health status, diagnose their own safety, and even repair their own damage and adjust their own state. In this way, the function of the structure can be greatly enhanced, the safety and reliability of the structure can be improved, the maintenance cost of the structure can be reduced, and the service life of the structure can be prolonged. [0003] The structural health monitoring method based on active monitoring technology is a typical and effective hot research method. Its...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B19/00A61B5/00A61B90/00
Inventor 袁慎芳邱雷余振华吴键王强赵霞李刚
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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