A transparent polymeric flexure-hinge nanopositioner, actuated by a piezoelectric stack actuator
| Autor: | Ki Woon Chae, Wook-Bae Kim, Young Hun Jeong |
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| Rok vydání: | 2011 |
| Předmět: |
Materials science
Mechanical Engineering Hinge Mechanical engineering PID controller Bioengineering General Chemistry Cyclic olefin copolymer Piezoelectricity Finite element method Stress (mechanics) chemistry.chemical_compound chemistry Mechanics of Materials General Materials Science Injection moulding Electrical and Electronic Engineering Actuator |
| Zdroj: | Nanotechnology. 22:335501 |
| ISSN: | 1361-6528 0957-4484 |
| DOI: | 10.1088/0957-4484/22/33/335501 |
| Popis: | Nanopositioning using piezoelectric actuation and a flexure mechanism is one of most common methods for nanometre-scale positioning. Generally, flexure mechanism nanopositioners have been made from metal. Thus, their application to various environments needs careful consideration with regard to corrosion and circumference interference. In this study, we propose the concept of a chip-like polymeric flexure-based nanopositioner equipped with piezoelectric actuation. In its design, motion performance was predicted using finite element analysis of deformation and stress, and injection mouldability was considered through an injection moulding simulation to allow for fabrication by injection moulding. A cyclic olefin copolymer nanopositioner was fabricated using a mesoscale injection moulding process. Experiments demonstrated that the developed nanopositioner had a travel range of 15 µm with high linearity and it could be successfully controlled by a proportional-integral-derivative (PID) algorithm including a low-pass filter with a root mean square control error of 3 nm. |
| Databáze: | OpenAIRE |
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