四紋豆象生活史之超音波自動偵測系統的建立

Development of an Automatic Ultrasonic Monitoring System for the Life History of Callosobruchus maculatus

洪滉祐(Huaang-Youh Hurag) ； 丁慶華(Ching-Hua Ting) ； 石庚申(Geng-Shen Shi) ； 盧福明(Fu-Ming Lu) ； 洪淑彬(Shwn-Bin Horng) ； 蘇鈺婷(Yue-Ting Su)

《中華農學會報》 8卷4期 (2007/08) Pp. 355-367

https://doi.org/10.6730/JAAC.200708_8(4).0006

摘要

本研究以超音波聲射為核心技術，建構一套自動偵測系統，用以觀察四紋豆象(Callosobruchus maculates)的生活史週期及取食活動。豆象羽化前的咬食行為會使種子內部纖維斷裂，斷裂過程中會產生微弱超音波，藉由觀測斷裂聲便可以獲悉豆象的咬食頻度的變化，以辨別豆象幼蟲的齡期與估測其生活史週期。斷裂過程的超音波經由自製的電子電路進行放大、濾波與轉換，並由商用的資料擷取卡進行信號的擷取，所擷取的信號由電腦進行線上的信號處理、儲存以及資訊顯示。本系統已成功用於觀測四紋豆象寄宿於紅豆與綠豆的生活史。

關鍵字

超音波 ； 四紋豆象 ； 生活史 ； 自動偵測

並列摘要

An ultrasonic monitoring system was developed for exploring the life history of Callosobruchus maculatus that inhabits beans. Callosobruchus maculatus only feeds before eclosion and the demand for food is different in every life stage. The feeding process cracks bean texture fibers and produces feeble ultrasound. Hence the life history of an inhabitant can be explored through spying on the feed-ing cracks. The developed ultrasonic monitoring system consists of a delicate electronic signal condi-tioning module which amplifies, filters, and transforms a biting crack into a square pulse; A computer equipped with software developed inhouse acquired biting pulses and displayed the life history. Ac-quired data was stored for off-line analysis. The system has been successfully applied to exploration of the life histories of Callosobruchus maculatus that inhabit Azuki beans and mung beans.

並列關鍵字

Ultrasonics ； Callosobruchus maculates ； Life History ； Automatic Monitoring