Gap Detection in Pairs of Ultrasound Mid-air Vibrotactile Stimuli

Ultrasound mid-air haptic (UMH) devices are a novel tool for haptic feedback, capable of providing localized vibrotactile stimuli to users at a distance. UMH applications largely rely on generating tactile shape outlines on the users' skin. Here we investigate how to achieve sensations of continuity or gaps within such two-dimensional curves...

Integrating shape memory materials in haptic technology as an aid for the visually impaired

There are approximately 285 million people worldwide living with a visual impairment and the rate of acquired blindness is expected to continue increasing. Assistive technology for them is progressively being developed in order to enable independent living. For the blind and visually impaired, the tactile sense is the primary source of...

Evidence-based development and evaluation of haptic interfaces for manual control

At present, the rapid development of automation technologies allows robots remarkable precision and endurance, as well as the strength in accomplishing repetitive tasks. Despite this, manual control is still indispensable in many domains where robots and humans play complementary roles, as humans demonstrate superior competence in improvisation...

The feel of 3D prints: An objective and perceptual characterization of FDM surface roughness

Since the expiration of the FDM printing patent by Stratasys in 2009, Fused Deposition Modeling(FDM) printing has taken a large step towards accessible consumer 3D printing. Also, more knowledge is sought in the process of FDM printing and optimizing quality as the layer by layer deposition inevitable results in poor surface quality. This study...