Note: A rigid piezo motor with large output force and an effective method to reduce sliding friction force Ying Guo, Yubin Hou, and Qingyou Lu Citation: Review of Scientific Instruments 85, 056108 (2014); doi: 10.1063/1.4879500 View online: http://dx.doi.org/10.1063/1.4879500 View Table of Contents: http://scitation.aip.org/content/aip/journal/rsi/85/5?ver=pdfcov Published by the AIP Publishing Articles you may be interested in Note: A compact, rigid, and easy-to-build piezo motor: The intact-tube GeckoDrive Rev. Sci. Instrum. 84, 056106 (2013); 10.1063/1.4805058 A piezo motor based on a new principle with high output force, rigidity and integrity: The Tuna Drive Rev. Sci. Instrum. 83, 115111 (2012); 10.1063/1.4767246 Methods and instrumentation for piezoelectric motors Rev. Sci. Instrum. 83, 033706 (2012); 10.1063/1.3694972 A simple, compact, and rigid piezoelectric step motor with large step size Rev. Sci. Instrum. 80, 085104 (2009); 10.1063/1.3197381 Bundle structure and sliding of single-walled carbon nanotubes observed by frictional-force microscopy Appl. Phys. Lett. 78, 832 (2001); 10.1063/1.1334359

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REVIEW OF SCIENTIFIC INSTRUMENTS 85, 056108 (2014)

Note: A rigid piezo motor with large output force and an effective method to reduce sliding friction force Ying Guo,1,2 Yubin Hou,1 and Qingyou Lu1,2,a) 1 High Magnetic Field Laboratory, Chinese Academy of Sciences and University of Science and Technology of China, Hefei, Anhui 230026, People’s Republic of China 2 Hefei National Laboratory for Physical Sciences at Microscale, University of Science and Technology of China, Hefei, Anhui 230026, People’s Republic of China

(Received 5 March 2014; accepted 12 May 2014; published online 28 May 2014) We present a completely practical TunaDrive piezo motor. It consists of a central piezo stack sandwiched by two arm piezo stacks and two leg piezo stacks, respectively, which is then sandwiched and spring-clamped by a pair of parallel polished sapphire rods. It works by alternatively fast expanding and contracting the arm/leg stacks while slowly expanding/contracting the central stack simultaneously. The key point is that sufficiently fast expanding and contracting a limb stack can make its two sliding friction forces well cancel, resulting in the total sliding friction force is

Note: A rigid piezo motor with large output force and an effective method to reduce sliding friction force.

We present a completely practical TunaDrive piezo motor. It consists of a central piezo stack sandwiched by two arm piezo stacks and two leg piezo sta...
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