Latt W T, Tan U-X, Widjaja F, Veluvolu K C, Shee C Y, Ang W T
School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore.
Annu Int Conf IEEE Eng Med Biol Soc. 2008;2008:1952-5. doi: 10.1109/IEMBS.2008.4649570.
Angular motion of a hand-held instrument due to physiological tremor during micromanipulation tasks was recorded with a six degree-of-freedom accelerometer-based sensing unit placed in the instrument. Methods to get angular velocities and angular accelerations from the acceleration readings of accelerators in the sensing unit are described. Statistics of angular velocity and angular acceleration of the instrument due to the tremor obtained from ten normal subjects are reported. Assumption of very small tremor angular velocities in micromanipulation tasks to calculate tremor angular accelerations analytically is validated.
在微操作任务期间，通过置于手持器械中的基于六自由度加速度计的传感单元记录由于生理震颤导致的手持器械的角运动。描述了从传感单元中加速度计的加速度读数获取角速度和角加速度的方法。报告了从十名正常受试者获得的由于震颤导致的器械角速度和角加速度的统计数据。验证了在微操作任务中假设震颤角速度非常小以解析计算震颤角加速度的合理性。
