Nanowerk January 24, 2022
In distributed sensing approaches where readouts are obtained directly at the ensemble level, generally requires sensor nodes capable of interacting with each other to implement the required readout statistic. An international team of researchers (Japan, Italy) developed an experimental set up based on chaotic synchronization. They found single-transistor oscillators, representing remarkably low-complexity yet highly flexible entities to be suitable for wireless coupling via mutual induction, realizing a simple form of telemetry for luminous flux. Using numerical simulations and numerous laboratory experiments they demonstrated a rich repertoire of possible interactions among multiple sensor nodes and between the same and an external exciter encompassing synchronization, desynchronization, relay effects, and chaotic transitions. Their work demonstrates a possible means of accurately estimating the average of a distributed physical magnitude from the complexity of ensemble dynamics. According to the researchers their approach contributes an important blueprint for future work using simple chaotic circuits in sensing applications…read more. Open Access TECHNICAL ARTICLEÂ
Representative examples of the dynamics in a 4×4 array of sensor boards… Credit: IEEE Access, vol. 8, pp. 36536-36555, 2020  Â