AbstractsComputer Science

Capacitive sensing with a fluorescent lamp

by John Jacob Cooley

Institution: MIT
Department: Electrical Engineering and Computer Science
Degree: M. Eng.
Year: 2007
Keywords: Electrical Engineering and Computer Science.
Record ID: 1811186
Full text PDF: http://hdl.handle.net/1721.1/41255


This work presents a modified fluorescent lamp that can be used as a capacitive sensing system. The lamp sensor measures changes in the electric fields emitted from the fluorescent bulbs in order to deduce the presence and motion of conductive and dielectric objects below the lamp. The prototype lamp sensor demonstrated a detection range of 10 feet for the presence and motion of a human below the lamp. Potential applications of the lamp sensor include proximity detection, motion sensing, security monitoring, activity level monitoring for power management and control and metal or dangerous substance detection.