Health and Behavior: Soft Sensors and Actuators for Wearables to Assist People with Disabilities

Led by Erik Engeberg, Ph.D.

This project focuses on the design of soft sensors and actuators for use in assistive applications for people with disabilities. Wearable robotic devices, such as prosthetic hands and arm exoskeletons, have tremendous potential to substantially improve the quality of life for many people with disabilities, including amputees and people with ambulatory impairments (e.g., resulting from stroke). Traditional robotic sensors and actuators comprise rigid components, in stark contrast to compliant biological limbs. The mismatch poses a substantial challenge in integrating wearable robotic devices for the arms and hands. The intellectual merit of the planned project is in investigating alternative solutions to overcome these difficulties, both in the realm of soft robotic actuators and highly stretchable, compliant sensors.

Under the leadership of Dr. Engeberg, the project will involve up to two REU participants. One participant will be tasked with designing a soft robotic actuator and controller module, which could together be used as a wearable robotic device. This will necessitate solid modeling and 3D printing and fabrication skills, along with programming for control. The second REU participant will be charged with the design and evaluation of a highly stretchable sensor made from liquid metal embedded in a highly stretchable substrate. This will necessitate design, electronics, and signal processing skills to implement. The participants will work together as a team to ensure that the material properties of the soft robotic actuator and highly stretchable sensor are compatible so that the sensor can be integrated within the soft robotic actuator and appropriately function together as a system. The broader impacts of the project are significant, exploring new wearable sensors and actuators that have the potential to substantially improve the quality of life for people with disabilities.