Capacitive Proximity Sensor Using Dickson Pump Charge Circuit

Capacitive proximity sensing (CPS) has gained significant attention in modern electronic applications due to its non-contact nature and reliability in detecting nearby objects. This paper presents a comparative analysis of five distinct circuits with slight variations using NI MULTISIM, focusing on three key factors: gain performance, circuit complexity, and applicability for capacitive proximity sensing. The study evaluates the gain performance of the circuits, with the 6-diode Dickson charge pump circuit emerging as the clear winner, exhibiting an impressive gain. This circuit's exceptional sensitivity and broad detection range make it highly suitable for applications demanding precision and accurate sensing outcomes. In conclusion, this paper highlights the significance of selecting the most appropriate circuit for capacitive proximity sensing applications. Engineers and researchers may use this thorough study to make well-informed choices when constructing capacitive proximity sensors for a variety of applications.

I. Introduction

The world is undergoing a deep transition due to the dynamic terrain of technological growth, and sensors are playing an increasingly important role as the eyes and ears of intelligent systems. Capacitive proximity sensors have emerged as a significant change among these sensors, transforming the way we interact with our environment. Capacitive proximity sensors are crucial in bridging the gap between people and machines as society slowly evolves toward a more connected, effective, and automated future.