639 アクティブ動吸振器による手術顕微鏡の微振動制振

概要

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It has been a problem in some hospitals that operations using surgical microscopes for brains and eyes become more difficult due to microvibrations of the microscopes caused by human walks and building equipment such as air conditioning machines. For a practical solution to it, a microvibration control system was developed, in which an active dynamic vibration absorber suing a small mass of 0.34kg and an accelerometer were collocated for vibration control in each direction. The system was attached on the point of the arm of the microscope. A direct velocity feedback control law was developed for the microscopes having various dynamic characteristics corresponding to their attitudes. Furthermore an active-passive switching law was developed to manage large vibrations of the microscopes due to doctors handling of them. Tests showed that the microvibration control system was effective and reliable enough for real application.
一般社団法人日本機械学会の論文
2000-09-01