A Review of Actuation and Sensing Mechanisms in MEMS-Based Sensor Devices

Nanoscale Res Lett. 2021 Jan 26;16(1):16. doi: 10.1186/s11671-021-03481-7.

Abstract

Over the last couple of decades, the advancement in Microelectromechanical System (MEMS) devices is highly demanded for integrating the economically miniaturized sensors with fabricating technology. A sensor is a system that detects and responds to multiple physical inputs and converting them into analogue or digital forms. The sensor transforms these variations into a form which can be utilized as a marker to monitor the device variable. MEMS exhibits excellent feasibility in miniaturization sensors due to its small dimension, low power consumption, superior performance, and, batch-fabrication. This article presents the recent developments in standard actuation and sensing mechanisms that can serve MEMS-based devices, which is expected to revolutionize almost many product categories in the current era. The featured principles of actuating, sensing mechanisms and real-life applications have also been discussed. Proper understanding of the actuating and sensing mechanisms for the MEMS-based devices can play a vital role in effective selection for novel and complex application design.

Keywords: Actuators; Capacitive; Electromagnetic; Electrostatic; Electrothermal; Fabrication; MEMS; Piezoelectric; Piezoresistive and sensors.

Publication types

  • Review