A Wearable Pneumatic Device for Continuous, Closed-Loop, Bidirectional Tactile Interaction

• URL: http://arxiv.org/abs/2609.00612v1
• Date: Tue, 01 Sep 2026 02:57:46 GMT
• Title: A Wearable Pneumatic Device for Continuous, Closed-Loop, Bidirectional Tactile Interaction
• Abstract summary: We present a system of two wearable pneumatic haptic devices that supports continuous, closed-loop, bidirectional tactile interaction.<n>A single device can contain up to twelve pressure sensing channels connected to textile-based pneumatic pouches.
• Score: 3.610437630887063
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: We present a system of two wearable pneumatic haptic devices that supports continuous, closed-loop, bidirectional tactile interaction at perceptually relevant force and temporal scales. A single device can contain up to twelve pressure sensing channels connected to textile-based pneumatic pouches. Each channel in a device can be used as a sensor, an actuator, or both. As an actuator with integrated sensing, the channel generates stable skin indentation through local closed-loop control. As a sensor, a channel can be mounted (or worn) on any surface, including on a robot gripper or on the human body, and used to measure touch interactions with the environment or a human user. A distributed architecture supports sustained pressure output, rapid dynamic response, and wireless pairing of identical devices in a system to transmit and reproduce tactile pressure signals in real time. Device-level characterization demonstrates force bandwidth exceeding 30 Hz, rapid and well-damped step responses, and extended pressure retention compared to prior compact pneumatic platforms. Human studies show that pressure-based fingertip feedback enables discrimination of force and stiffness, improves teleoperated manipulation by reducing applied pressures by up to 23.1% and task duration by up to 27.4%, and lowers subjective mental workload by 18.8%, particularly under visually constrained conditions. By unifying tactile sensing and haptic feedback within a single pneumatic modality, the device provides a practical foundation for bidirectional touch interaction in teleoperation.

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