Sound Modulation in Singing Katydids Using Ionic Polymer-Metal Composites （IPMCs）  

作　　者：Yan Zhou Cheng-Wei Chiu Carlos J. Sanchez Jorge M. Gonzalez Benjamin Epstein David Rhodes S. Bradleigh Vinson Hong Liang 

机构地区：[1]Materials, Science and Engineering, Texas A&M University, College Station, TX 77843, USA [2]Department of Mechanical Engineering, Texas' A&M University, College Station, TX 77843, USA [3]Department of Entomology, Texas A&M University, College Station, TX77843, USA [4]Department of Plant Science, California State University, Fresno, CA 93740, USA [5]OpCoast LLC, Brick, NJ08723, USA

出　　处：《Journal of Bionic Engineering》2013年第4期464-468,共5页仿生工程学报（英文版）

摘　　要：Many insect families have evolved to produce and detect complex singing patterns for the purposes of mating, display of dominance, predator escape, and other needs. While the mechanisms of sound production by insects have been thoroughly studied, man-machine exploitation of such mechanisms has remained unreported. We therefore describe a method to modulate the frequency spectrum in the chirp call of a singing insect, Gampsocleis gratiosa （Orthoptera： Tettigoniidae）, a large katydid indigenous to China and commonly known as Guo Guo or Chinese Bush Cricket. The chirp modulation was achieved through the contact of a ribbon of lonic Polymer-Metal Composite （IPMC） against wing of the insect. The IPMC effectively served as an actuator when a small DC voltage was applied to the ribbon＇s faces. By applying a sequential on/off voltage waveform to the IPMC ribbon, the katydid＇s chirp was modulated in a corresponding manner. This configuration can be used as part of a broader application of using singing insects to harness their acoustic power to produce and propagate machine-induced messages into the acoustic environment.Many insect families have evolved to produce and detect complex singing patterns for the purposes of mating, display of dominance, predator escape, and other needs. While the mechanisms of sound production by insects have been thoroughly studied, man-machine exploitation of such mechanisms has remained unreported. We therefore describe a method to modulate the frequency spectrum in the chirp call of a singing insect, Gampsocleis gratiosa （Orthoptera： Tettigoniidae）, a large katydid indigenous to China and commonly known as Guo Guo or Chinese Bush Cricket. The chirp modulation was achieved through the contact of a ribbon of lonic Polymer-Metal Composite （IPMC） against wing of the insect. The IPMC effectively served as an actuator when a small DC voltage was applied to the ribbon＇s faces. By applying a sequential on/off voltage waveform to the IPMC ribbon, the katydid＇s chirp was modulated in a corresponding manner. This configuration can be used as part of a broader application of using singing insects to harness their acoustic power to produce and propagate machine-induced messages into the acoustic environment.

关 键 词：chirp modulation KATYDID IPMC 

分 类 号：TP391[自动化与计算机技术—计算机应用技术] TB331[自动化与计算机技术—计算机科学与技术]