Intelligent acoustic emission continuous monitor

A monitor and acoustic emission technology, applied in the field of material stability monitoring, can solve the problems of in-depth research limitations, lack of acoustic emission signal processing and waveform recognition technology research, etc., to achieve safe and reliable data storage, convenient viewing and statistical data , data export simple effect

Inactive Publication Date: 2009-10-21
JIANGXI UNIV OF SCI & TECH +2
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Problems solved by technology

However, in the study of rock acoustic emission measurement of ground stress, the commonly used acoustic emission parameter analysis method does not use all the information of acoustic emission, and lacks the research on acoustic emission signal processing and waveform recognition technology, which leads to deep-rooted research on rock acoustic emission measurement of ground stress. Earth research is very limited

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  • Intelligent acoustic emission continuous monitor
  • Intelligent acoustic emission continuous monitor
  • Intelligent acoustic emission continuous monitor

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Experimental program
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specific Embodiment approach

[0034] (1) Install the PXAE host in a safe and stable location;

[0035] (2) The sensor is embedded in the rock mass or concrete structure;

[0036] (3) Connect the sensor to the PXAE host;

[0037] (4) Set and adjust the monitoring mode, sampling time and sampling interval;

[0038] (5) Signal acquisition, the acquisition is divided into normal acquisition and continuous acquisition. The power-on display time is the idle state, and it will enter the normal collection state every 10 minutes. The normal collection time is 3 minutes, calculated and recorded every 10 seconds, and the data reaches 1 page (528 bytes) for storage. In the idle state, press the ↑↑ / continuous collection key to enter the continuous collection state, and the data will be stored sequentially with the normal collection data;

[0039] (6) Data export operation, data export root to export U disk and export handheld computer;

[0040] (7) Install the PXAE rock mass acoustic emission instrument software; ...

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Abstract

The invention discloses an intelligent acoustic emission continuous monitor for the stability of materials such as rock, concrete, metal structure, and the like, in particular a motor for carrying out damage-free monitoring for the materials such as rock, concrete, metal structure and the like so as to predict the stability of the materials. The acoustic emission technique can realize real-time continuous rock monitoring and precisely analyze acoustic emission collecting data. The invention uses acoustic emission measuring theory to collect and monitor the characteristics of the parameters such as number of acoustic emission events, number of key events, acoustic emission rate, and the like. The monitor automatically calculates through a microprocessor, displays and stores typical acoustic emission parameters (number of acoustic emission events, number of key events and acoustic emission rate) in real time; a FLASH flash memory with 64 M capacity can continuously store data for 2-3 months. The data stored by the intelligent acoustic emission continuous monitor is analyzed and processed through self-developed PXAE rock acoustic emitter software.

Description

1. Technical field [0001] The invention relates to a method for monitoring materials such as rock mass, concrete and metal structures, in particular to a method for monitoring the stability of materials such as rock mass, concrete and metal structures by using an acoustic emission continuous monitor. 2. Background technology [0002] At present, acoustic emission technology has been widely used as a non-destructive detection method in geology, water conservancy, earthquake, civil engineering and machinery industries, especially in rock mass damage detection and ground stress measurement. The failure of rock mass is the main factor affecting the stability of underground engineering, and the detection of rock mass by acoustic emission is an effective means to analyze the stability of underground engineering. However, there are many shortcomings in the current acoustic emission measurement. For example, the operator must be on-site during the detection, and it is basically impo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N29/14
Inventor 赵奎王晓军陈卫军何锦龙支学艺
Owner JIANGXI UNIV OF SCI & TECH
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