A brief review of Hall effect-based sensors

Purpose Hall effect-based sensors have established themselves as indispensable components for precise, contactless measurement of a wide array of measurands, serving as critical enablers across diverse sectors, including automotive, industrial automation, consumer electronics, medical devices and aerospace. This paper aims to provide a comprehensive and integrative analysis of Hall effect-based sensor technologies, focusing on their fundamental operating principles, construction, classification and the scope of their applications. Furthermore, the paper highlights significant recent advancements in the design, and integration, aiming to inform and inspire future research and development efforts in the realm of smart, interconnected sensing solutions. Design/methodology/approach This paper adopts a systematic review methodology, drawing from a wide range of peer-reviewed journal articles, conference papers and technical reports. The literature was selected based on clear demonstrations of Hall effect-based sensor applications in different environments. Emphasis was placed on studies that provided experimental results, case studies or detailed descriptions of how Hall effect sensors are integrated into systems for measuring specific physical and electrical quantities. Findings The review reveals that Hall effect-based sensors are exceptionally versatile and widely used for the measurement of various physical and electrical quantities. In the field of electrical engineering, they are extensively utilized for accurate current sensing in both AC and DC circuits. In industrial and automotive applications, Hall effect-based sensors are crucial for detecting rotational speed and torque, as well as for monitoring pressure and temperature in harsh environments. Their ability to provide reliable, non-intrusive measurements makes them ideal for applications where traditional sensors may fail or be impractical. Furthermore, the paper discusses how Hall effect-based sensors are increasingly being adopted in emerging areas such as medical devices and consumer electronics for innovative measurement solutions. Originality/value This paper provides a focused and application-oriented review of Hall effect-based sensors, distinguishing itself by concentrating solely on their practical uses in measuring various quantities. By systematically presenting real-world examples and recent advancements in application domains, the paper serves as a valuable resource for researchers, engineers and practitioners seeking to understand and leverage the unique advantages of Hall effect-based sensors in various measurement tasks.