– Actuator Component:
– Comes in various shapes and sizes
– Visualized as an L shape with a smaller end called the bushing
– Sits on top of a substrate with a thin insulating dielectric layer
– Voltage applied between actuator and substrate causes actuator body to move downwards
– Energy is stored in the strained actuator when voltage is applied
– Movement Mechanism:
– Brush is pushed forward by a small amount when actuator body moves downwards
– Actuator springs back into shape when voltage is removed
– Bushing remains in its new position after actuator movement
– Pulsed voltage application can make the Scratch Drive Actuator (SDA) move forward
– Voltage applied to actuator through a tether, which can be a rigid connector or rail
– Size and Scale:
– Size of an SDA is typically measured on the μm scale
– Small dimensions allow for precise movements in microtechnology applications
– Enables intricate operations in microelectromechanical systems
– μm-scale measurement contributes to the compact nature of SDAs
– Size plays a crucial role in the effectiveness of SDAs in various fields
– Research and Publications:
– Study by Li, Brown, and Uttamchandani on SDA force characteristics
– Research by Fujita and Toshiyoshi on micro actuators and their applications
– Article by Cooney showcasing dancing microrobots on a pin’s head
– Journal of Micromechanics and Microengineering publication on SDAs
– Microelectronics Journal article on microactuators and their uses
– Additional Resources:
– Wikipedia page on Scratch Drive Actuator with references
– Categories related to actuators, microtechnology, and materials science
– Hidden categories indicating the article’s status
– Information on how to expand the Wikipedia stub
– References to help understand and explore SDAs further
This article needs additional citations for verification. (August 2015) |
A scratch drive actuator (SDA) is a microelectromechanical system device that converts electrical energy into one-dimensional motion.
