Detection and Power Spectrum of Creeping Sound of Insects in Stored Grain

摘要：

The random acoustic source model of insects creeping in stored grain is developed.For Tribolium castaneum Herbst adults in wheat, soybean, corn, respectively, and for Tribolium castaneum Herbst adults,Alphitobius diaperinus Panzer adults, Sitophilus oryzae Linnaeus adults and Tribolium castaneum Herbst mixed with Sitophilus oryzae Linnaeus in wheat,the creeping sound signals are detected.Then the power spectrum characteristics are analyzed,and also the power spectrums of the creeping sound of mixed insects in stored grain are pilotly studyed.The results show the creeping sound is periodic,The creeping sounds of different insects or different grains have different basic frequency and secondary frequency,which majorly caused by the texture, shape and size of grain and insects.By the power spectrum characteristics of the creeping sound can distinguish mixed insects in grain.

关键词： Random sound source Creeping sound of insects in stored grain Detection Power spectrum

作者: GENG Senlin ZHANG Xiuqin

作者单位: Department of Physics and Electronic Engineering, Weinan Teachers University, P.R.China,714000 Department of Chemistry and Chemical Engineering, Weinan Teachers University, P.R.China,714000

会议类型: 国际会议

会议名称: China Agriculture System Engineering Society 2010(2010年中国农业系统工程学术年会)

会议地点: 威海

会议语种:英文

页码: 216-222

在线出版日期: 2010-07-29（万方平台首次上网日期，不代表论文的发表时间）