Document Detail

Compact Sensing Design of a Handheld Active Tremor Compensation Instrument.
MedLine Citation:
PMID:  20209026     Owner:  NLM     Status:  Publisher    
Active physiological tremor compensation instruments have been under research and development recently. The sensing unit of the instruments provides information on three degrees-of-freedom (DOF) motion of the instrument tip using accelerations provided by accelerometers placed inside the instruments. A complete vector of angular acceleration of the instrument needs to be known to obtain information on three DOF motions of the tip. Sensing resolution of angular acceleration about the instrument axis is directly proportional to the width of the proximal-end sensing unit. To keep the sensing resolution high enough, the width of the unit has to be made large. As a result, the proximal-end sensing unit of the instruments is bulky. In this paper, placement of accelerometers is proposed such that the angular acceleration about the instrument axis need not be known to obtain information on the three DOF motions of the tip. With the proposed placement, the instrument is no longer bulky and fewer number of accelerometers is required, thereby making the instrument compact and better in terms of ergonomics and reliability. Experiments were conducted to show that the proposed design of placement works properly.
Win Tun Latt; U-Xuan Tan; Cheng Yap Shee; Cameron N Riviere; Wei Tech Ang
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Publication Detail:
Journal Detail:
Title:  IEEE sensors journal     Volume:  9     ISSN:  1530-437X     ISO Abbreviation:  -     Publication Date:  2009 Dec 
Date Detail:
Created Date:  2010-7-13     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101212357     Medline TA:  IEEE Sens J     Country:  -    
Other Details:
Languages:  ENG     Pagination:  1864-1871     Citation Subset:  -    
School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore.
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Grant Support
R01 EB000526-03//NIBIB NIH HHS; R21 EY016359-02//NEI NIH HHS

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