TY - JOUR
T1 - A new type of multi-degree-of-freedom miniaturization actuator using symmetric piezoelectric pusher element for a pocket sun-tracking system
AU - Shen, S. C.
AU - Tsai, P. C.
AU - Wang, Y. J.
AU - Huang, H. J.
N1 - Funding Information:
The authors would like to thank National Science Council (NSC) and College of Engineering, National Cheng Kung University for their financial supports to the project (granted numbers: NSC 98-2221-E-006-260-MY3 and NSC 100-2628-E-006-019-MY3 ).
PY - 2012/8
Y1 - 2012/8
N2 - This study presents a 2 × 2 pocket sun-tracking system that combines a multi-degree-of-freedom motion (multi-DOF) piezoelectric actuator with a hemisphere concentrator lens. The multi-DOF piezoelectric actuator consists of two parallel symmetric piezoelectric pusher elements (SPPEs) and ball-bearing bases. The proposed multi-DOF piezoelectric actuator uses three SPPE vibration modes to rotate a hemisphere concentrator lens along three perpendicular axes. The experiment in this study demonstrates how the 2 × 2 pocket sun-tracking system is driven by different modes and rotates around the X-, Y-, and Z-axes. When applying 3 V pp to a multi-DOF piezoelectric actuator, the rotating accuracies of the 2 × 2 pocket sun-tracking system along the X-, Y-, and Z-axes were 0.022°, 0.022°, and 0.007°, respectively, and the driving frequencies along the X-, Y-, and Z-axes were 223.4 kHz, 223.2 kHz, and 225 kHz, respectively. The results confirm that the 2 × 2 pocket sun-tracking system was accomplished successfully using the multi-DOF piezoelectric actuator.
AB - This study presents a 2 × 2 pocket sun-tracking system that combines a multi-degree-of-freedom motion (multi-DOF) piezoelectric actuator with a hemisphere concentrator lens. The multi-DOF piezoelectric actuator consists of two parallel symmetric piezoelectric pusher elements (SPPEs) and ball-bearing bases. The proposed multi-DOF piezoelectric actuator uses three SPPE vibration modes to rotate a hemisphere concentrator lens along three perpendicular axes. The experiment in this study demonstrates how the 2 × 2 pocket sun-tracking system is driven by different modes and rotates around the X-, Y-, and Z-axes. When applying 3 V pp to a multi-DOF piezoelectric actuator, the rotating accuracies of the 2 × 2 pocket sun-tracking system along the X-, Y-, and Z-axes were 0.022°, 0.022°, and 0.007°, respectively, and the driving frequencies along the X-, Y-, and Z-axes were 223.4 kHz, 223.2 kHz, and 225 kHz, respectively. The results confirm that the 2 × 2 pocket sun-tracking system was accomplished successfully using the multi-DOF piezoelectric actuator.
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U2 - 10.1016/j.sna.2012.05.016
DO - 10.1016/j.sna.2012.05.016
M3 - Article
AN - SCOPUS:84863455350
SN - 0924-4247
VL - 182
SP - 114
EP - 121
JO - Sensors and Actuators, A: Physical
JF - Sensors and Actuators, A: Physical
ER -