Linear Resonant Actuator

Linear resonant actuators (LRAs) are vibration motors that use resonance to produce precise and controlled vibrations for haptic feedback systems.

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Linear Resonant Actuator

Short Introduction Of LRA Vibration Motors


A linear resonant actuator (LRA) is an electromagnetic actuator that generates linear vibrations or oscillations. It is commonly used in haptic feedback systems, mobile devices, gaming controllers, and wearable technology. The LRA consists of a coil, magnet, and spring-mass system. When an alternating current passes through the coil, it creates a magnetic field that interacts with the magnet, resulting in linear vibrations.

LRAs offer compact size, low power consumption, and precise control, making them ideal for creating tactile feedback sensations. They can simulate button presses in touchscreens, deliver immersive haptic feedback in gaming, and provide discreet notifications in wearable devices. While LRAs have limitations in terms of force output and complexity of vibrations, their versatility and customization options make them a popular choice in the field of haptic technology.

Overall, LRAs are reliable and efficient vibration motors that provide controlled and precise vibrations. Their ability to generate specific tactile feedback makes them valuable components in devices that require haptic interaction or enhanced user experiences.