Design and fabrication of a miniaturized wireless pH sensor

Abstract

pH sensors have been used in numerous applications, such as environmental monitoring, food quality control, and clinical testing. The conventional sensors, based on glass electrodes, provide high precision and reliability over an extended period. However, the bulkiness and the lack of integration have limited their use. The recent advances in microfabrication and materials have enabled miniaturized pH sensing systems based on various substrates; however, the reliability and integration with electronics remained a challenge. In this work, we designed and developed a miniaturized pH sensor using different fabrications process, aiming for potential applications in clinical monitoring, environmental and foodsafety monitoring. Due to biocompatibility, infections and size concerns, the need for a wireless and battery-less system is evident, especially for medical devices. For that reason, we also designed a wireless user interface and an optimized inductive link (transmitter antenna, receiver antenna) to transmit power wirelessly.

Date	3 Jan 2017
Original language	American English
Awarding Institution	École de technologie supérieure
Supervisor	Ammar B. Kouki (Supervisor) & Hung Cao (Co-supervisor)