A Low Cost Passive Acoustic Resonator for Insect-Like Microrobotic Systems

This paper presents a novel implementation of a low-cost passive acoustic resonator for observing and amplifying inaudible sound produced by a microfork of an insect-like microrobot. The implementation demonstrates all alternative way of finding a simple yet practical, low cost, and effective solution for amplifying sound by fundamental of physics, instead of designing a complex electronic amplifier with much relatively higher cost. The implemented passive acoustic resonator has performed remarkably well, yielding sufficiently audible voice for the insect-like robots even for human.