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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:
为了监控杨木蛀干小蠹幼虫,获取它12小时内的活动规律,采用传感器、放大器、数据采集卡、电脑等设备,搭建了多通道AE信号采集平台,在8:00-23:00时间段,对杨树幼虫进行监测,最后对采集的声波信号进行小波分析处理.研究表明,文中搭建的AE信号采集分析平台具有一定的可行性,每个监测时间段内都能得到幼虫活动声波信号,且在20:00-21:00时间段内最活跃,幼虫声波信号主频在64-65.5KHz频段内.
作  者:
CHEN Qin;LI Ming;LUO Yanfang;ZHU Daigen;College of Mechanical and Transportation,Southwest Forestry University;
单  位:
CHEN Qin%LI Ming%LUO Yanfang%ZHU Daigen%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 Populus euphratica, 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 64-65.5 KHz band.

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