Researchers Use Optical Waveguides to Create Shape-Sensing Sheets

A team of researchers has demonstrated a novel approach to sensing the shape of dynamic objects using optical waveguide arrays. The method involves laying out custom elastomeric waveguides in a double-sided, overlapping zig-zag pattern on a sheet, allowing for the reconstruction of the sheet's shape based on changes in wave propagation. The researchers successfully tested the system by wrapping the sheet around a volunteer's arm and detecting the flexing and movement of individual joints.

Optical Waveguide Arrays for Shape Sensing

• Custom elastomeric waveguides are manufactured and laid out in a double-sided, overlapping zig-zag pattern on a sheet.
• The wave propagation through the waveguide changes as the sheet's shape changes, allowing for reconstruction of the shape.
• The system can detect the flexing and movement of individual joints, making it suitable for applications such as VR.

Why it matters

This technology has the potential to enable the creation of sensor sheets that can track the configuration of objects, which could be useful in applications such as Virtual Reality and robotics.