Before revision: Depending on the type of sensors employed, sensing floors can be measure load (pressure), proximity (to detect, track, and recognize humans), as well as the magnetic field (for detecting metallic objects like robots using magnetometers).
After revision: Depending on the type of sensors employed, sensing floors can measure load (pressure), proximity (to detect, track, and recognize humans), as well as the magnetic field (for detecting metallic objects like robots using magnetometers).