Tactile sensors of comprehensive functions are urgently needed for the advanced robot to co-exist and co-operate with human beings. Pneumatic tactile sensors based on air bladder possess some noticeable advantages for human-robot interaction application. In this paper, we construct a pneumatic tactile sensor and apply it on the fingertip of robot hand to realize the sensing of force, vibration and slippage via the change of the pressure of the air bladder, and we utilize the sensor to perceive the object's features such as softness and roughness. The pneumatic tactile sensor has good linearity, repeatability and low hysteresis and both its size and sensing range can be customized by using different material as well as different thicknesses of the air bladder. It is also simple and cheap to fabricate. Therefore, the pneumatic tactile sensor is suitable for the application of co-operative robots and can be widely utilized to improve the performance of service robots. We can apply it to the fingertip of the robot to endow the robotic hand with the ability to co-operate with humans and handle the fragile objects because of the inherent compliance of the air bladder.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5712939 | PMC |
| http://dx.doi.org/10.3390/s17112592 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Soft wearable thermo+touch haptic interface for virtual reality.
iScience
December 2024
School of Electrical Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, South Korea.
Touch is an inherent source of tactile sensation in everyday life, followed by vision and audition. For rich tactile feedback, multimodal haptic feedback is necessary because a single touch simultaneously excites multiple types of tactile receptors. In this paper, we present a soft wearable thermotouch haptic interface (THI) that simultaneously and independently provides touch and thermal stimulation using only one end-effector, the thermotouch haptic actuator (THA).
View Article and Find Full Text PDFHow to Make the Skin Contact Area Controllable by Optical Calibration in Wearable Tactile Displays of Softness.
Sensors (Basel)
October 2024
Biomedical Engineering Unit, Department of Industrial Engineering, University of Florence, 50121 Florence, Italy.
Article Synopsis
- Virtual reality systems can improve user experience through wearable haptic displays that simulate the softness of virtual objects using fingertip-mounted technology.
- The most effective way to convey softness is by providing tactile feedback through controlled pressure and skin contact area on the finger, but existing devices struggle with precise contact area measurement.
- The proposed solution involves a pneumatic haptic display that uses optical calibration to monitor and adjust the contact area, validated through comparison with other methods, and it includes an automated calibration process for easier use.
Tactile Sensing and Rendering Patch with Dynamic and Static Sensing and Haptic Feedback for Immersive Communication.
ACS Appl Mater Interfaces
October 2024
School of Future Science and Engineering, Soochow University, Suzhou 215123, China.
Wearable human-machine interface (HMI) with bidirectional and multimodal tactile information exchange is of paramount importance in teleoperation by providing more intuitive data interpretation and delivery of tactilely related signals. However, the current sensing and feedback devices still lack enough integration and modalities. Here, we present a Tactile Sensing and Rendering Patch (TSRP) that is made of a customized expandable array which consists of a piezoelectric sensing and feedback unit fused with an elastomeric triboelectric multidimensional sensor and its inner pneumatic feedback structure.
View Article and Find Full Text PDFHardness changing tactile displays for simulating the feel of organic tissues.
Front Robot AI
August 2024
Simulation and Modelling in Medicine and Surgery (SiMMS) Lab, Department of Surgery and Cancer, Imperial College London, London, United Kingdom.
Physical interaction with patients, for example conducted as part of a diagnostic examination or surgical procedure, provides clinicians with a wealth of information about their condition. Simulating this interaction is of great interest to researchers in both haptics and medical education, and the development of softness changing tactile interfaces is important in recreating the feel of different soft tissues. This paper presents designs for a variety of novel electromechanical and electromagnetic mechanisms for controlling particle jamming-based, hardness changing tactile displays, intended to allow medical trainees to experience these physical interactions in a range of simulation settings such as clinical skills teaching laboratories.
View Article and Find Full Text PDFAcousTac: Tactile Sensing with Acoustic Resonance for Electronics-Free Soft Skin.
Soft Robot
August 2024
Department of Mechanical Engineering, University of California Berkeley, Berkeley, California, USA.
Sound is a rich information medium that transmits through air; people communicate through speech and can even discern material through tapping and listening. To capture frequencies in the human hearing range, commercial microphones typically have a sampling rate of over 40 kHz. These accessible acoustic technologies are not yet widely adopted for the explicit purpose of giving robots a sense of touch.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!