A three-part experiment was conducted to determine the accuracy, repeatability and linearity of a human hand manipulating the DataGlove. Accuracy and repeatability of finger flexure were investigated with repeated measurements of three calibration positions. Linearity of finger flexure was investigated with steady finger and thumb curling motions. Accuracy and repeatability of hand location and orientation were investigated with repeated measurements of six hand positions. Finger flexure mean accuracy was 60 for the four fingers and 110 for the thumb, repeatability was 30 for the four fingers and 90 for the thumb, and linearity varied from 2 to 5 O . Although the mean location accuracy was 1 inch and the mean orientation accuracy was 170, the position and orientation receiver was observed to twist on the glove back. Across all subjects, the location repeatability was 0.5 inch, while the orientation repeatability was 90 . However, the within-subject location repeatability was 0.13 inches, while the orientation repeatability was 20 .

No abstract

While the nature of eye and head displacements t o target acquisitions i n the horizontal plane have been frequently studied, such investigations i n the vertical plane are somewhat scarce. In the experiment reported herein the f i n a l displacements of the head, eye, and gaze were examined for target acqdsitions i n the vertical and horizontal planes. The subjects' task was t o f i x a t e on a central target until receiving a verbal command to fixate on one of four peripheral targets. The analysis of the m e a n head, eye, and gaze displacement data t o the target vertical and horizontal planes. and MacAulay-Brown, Inc. (MacB) portions of t h i s effort were performed in support of the USAF AAMRL Contract Numbers F33615-85-C-0541, and F33615-82-C-0513, respectively.