Low-Power Robotic Actuation for Soft Systems
Wireless, tunable composite enables radio frequency-induced motion
This technology is a lightweight, wire-free soft robotic actuator that converts low-power radiofrequency energy into precise bending or lifting through controlled thermal expansion. It solves the problem of bulky hydraulic and pneumatic systems that require pumps, tubing, and pressurized reservoirs, which make traditional robotic systems difficult to use in portable or confined environments.
The actuator heats and expands quickly, creating controlled movement without any hydraulic lines, pumps, or electrical wiring. Tests showed that the actuator bends and returns to its original shape through repeated cycles without losing performance. Operating at about 153 MHz with only 3 watts of power (similar to a cellphone signal) the lightweight, three-layer composite enables wireless motion for soft robotic grippers, medical prosthetics, and foldable or deployable aerospace and defense devices.
Benefits:
- Low-power operation: Uses 3 watts of power, similar to a cellphone
- Reliable performance: No loss after repeated actuation cycles
- Versatile use: Suitable for robotics, prosthetics, and aerospace systems
Applications:
- Soft robotics
- Prosthetics
- Medical devices
- Space missions
- Industrial automation
Patents
- 20250233319 (Copy & search patent)