A MEMS sensor for low-frequency vibration energy harvesting

Abstract

This paper reports ongoing work in development of a MEMS electrostatic sensor for self-powered detection of mechanical vibrations of less than 1000 Hz. The sensor is an in-plane overlapping comb configuration. Six different variants on a common design were fabricated on a single die using the commercial SOI-MUMPS process. Additional masses were manually added to lower the resonant frequency.