Re-engineering artificial muscle with microhydraulics  

作　　者：Jakub Kedzierski Eric Holihan Rafmag Cabrera Isaac Weaver 

机构地区：[1]Massachusetts Institute of Technology Lincoln Laboratory,Lexington,MA 02420,USA

出　　处：《Microsystems & Nanoengineering》2017年第1期278-285,共8页微系统与纳米工程（英文）

基　　金：This material is based upon work supported by the Assistant Secretary of Defense for Research and Engineering under Air Force Contract No.FA8721-05-C-0002 and/or FA8702-15-D-0001.

摘　　要：We introduce a new type of actuator,the microhydraulic stepping actuator(MSA),which borrows design and operational concepts from biological muscle and stepper motors.MSAs offer a unique combination of power,efficiency,and scalability not easily achievable on the microscale.The actuator works by integrating surface tension forces produced by electrowetting acting on scaled droplets along the length of a thin ribbon.Like muscle,MSAs have liquid and solid functional components and can displace a large fraction of their length.The 100μm pitch MSA presented here already has an output power density of over 200 W kg^(−1),rivaling the most powerful biological muscles,due to the scaling of surface tension forces,MSA’s power density grows quadratically as its dimensions are reduced.

关 键 词：artificial muscle ELECTROWETTING linear actuator MICROACTUATOR MICROSYSTEM microhydraulic stepping actuator 

分 类 号：R74[医药卫生—神经病学与精神病学]