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当前位置: 首页 > 文章 > 基于声发射技术的杨木蛀干害虫幼虫活动规律研究 陕西林业科技 2019,47 (2) 23-29
Position: Home > Articles > Use Acoustic Emission Technique to Study the Activity Law of the wood boring larvae Pests of aspen Shaanxi Forest Science and Technology 2019,47 (2) 23-29

基于声发射技术的杨木蛀干害虫幼虫活动规律研究

作  者：
陈琴;李明;罗延芳;朱代根
单  位：
西南林业大学机械与制造工程学院
关键词：
杨树;声发射技术;监测;蛀干幼虫;活动规律
摘  要：
采用搭建AE信号采集平台,8:00-23:00内1h监测1次(其中测定0.5h、休息0.5h)、循环监测采集数据,利用matlab软件、傅里叶变换法等处理信号、绘图噪声频谱图等方法,探索研究了基于声发射技术的蛀干害虫幼虫活动规律研究可行性和杨木蛀干害虫小蠹幼虫活动规律,结果为本研究建立的系统能实现对杨树幼虫声音信号的采集、分析和处理;杨树小蠹幼虫声音信号主频主要集中于64.0 K~65.5 K Hz频段内;测量时间段内,杨树小蠹幼虫最活跃时间段在20:00-21:00.
译  名：
Use Acoustic Emission Technique to Study the Activity Law of the wood boring larvae Pests of aspen
作  者：
CHEN Qin;LI Ming;LUO Yan-fang;ZHU Dai-gen;College of Mechanical and Transportation, Southwest Forestry University;
关键词：
poplar;;acousticemission;;technology;;monitoring larvae;;larvae activity law
摘  要：
In order to monitor the larvae of the dried pests of Poplar, the activity patterns of them were obtained. Firstly, a multi-channel AE signal acquisition platform was built using sensors, amplifiers, data acquisition cards, notebooks, etc., followed by monitoring the poplar larvae from 8∶00 to 23∶00, and finally performing wavelet analysis on the collected signals. The research shows that the AE signal acquisition platform built in the paper is available. During the monitoring period, the larvae are active every hour, and are most active during the period from 20∶00 to 21∶00. The main frequency of the larvae sound signals is mainly concentrated. In the 64.0 k～65.5 KHz band.

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