In the era of intelligence and automation, sensors, like the nerve endings of machines, perceive and respond to changes in their environment. Among them, the resistive proximity sensor stands out with its unique advantages, becoming an indispensable part of modern sensing technology. The working principle of the resistive proximity sensor is to detect the change in the resistance value of the sensing material when an object is close to or in contact with it. It converts physical quantities such as pressure, bending, touch, etc. into electrical signals, providing clear, accurate information for the system’s control and response. This type of sensor has significant advantages in various fields: In industrial automation, resistive proximity sensors can monitor the position and movement of production line components in real-time, ensuring the precise operation of the production process and reducing human errors. For example, in automated assembly lines, they can accurately sense the arrival of parts and trigger the corresponding mechanical actions to ensure the smooth progress of the assembly work. In the medical field, these sensors are used in intelligent rehabilitation equipment and health monitoring devices. They can monitor patients’ movements and postures in real-time and provide feedback on rehabilitation training, assisting doctors in more effectively formulating treatment plans. Additionally, the high sensitivity of resistive proximity sensors enables them to detect even slight physiological signal changes, providing a powerful tool for early disease diagnosis. In service robots, resistive proximity sensors endow robots with “touch” ability. Whether it’s a household cleaning robot avoiding obstacles or a nursing robot carefully taking care of the elderly, this technology makes robots better understand and interact with humans and the environment. For example, when a nursing robot touches a patient’s body using a resistive proximity sensor, it can adjust its force and action speed to avoid causing discomfort to the patient. In the future, with continuous technological advancements, the performance of resistive proximity sensors will be further improved. We can expect to see higher sensitivity, faster response speed, and more stable performance sensors. Simultaneously, integrating resistive proximity sensors with emerging technologies such as the Internet of Things and big data analytics will make data collection and processing more efficient and intelligent. Resistive proximity sensors, with their unique working principles and extensive applications, are gradually changing the way we perceive and interact with the world. In the future development of science and technology, they will continue to play an important role and create a smarter, more convenient life together with other technologies.
