Fig. 6: Strain field monitoring and real-time measurement with our sensor film.
From: High-density, highly sensitive sensor array of spiky carbon nanospheres for strain field mapping
a The sensing film could detect even the tiny deformation induced by an embedded bean even when PDMS buffering layers of different thickness were on top. The film was as sensitive as the princess in Hans Christian Andersen’s famous fairy tale The Princess and the Pea. b The sensing film did not respond to the poking when attached to a hardwood board. c The sensing film responded to the poking when attached to a soft sponge. d The deformation of a pork slice could be detected in a real-time manner when the sensing film was attached on it. To match with the dynamic data acquisition setup, the measurements were conducted using a 16 × 16 array with a density of 16 pixel cm−2. Source data are provided as a Source Data file.
