Localized tactile stimulation by time-reversal of flexural waves: Case study with a thin sheet of glass

Hudin, Charles; Lozada, José; Hayward, Vincent

doi:10.1109/whc.2013.6548386

Cited by 14 publications

(10 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The symmetry with which sound waves travel between two points when either point is used as a source to emit an impulse allows capturing a diverging wave front and retransmitting the signals to create a converging wave front that propagates back to the source location (an acoustic time reversal mirror). This property has enabled numerous applications (e.g., estimating the origin of earthquakes [17], localizing and destroying kidney stones [17], sensing the location of finger taps [18], [19], and providing tactile feedback on touch panels [18], [20]). 1) Standard time reversal: Fig.…”

Section: Time-reversed Acousticsmentioning

confidence: 99%

SkinHaptics: Ultrasound focused in the hand creates tactile sensations

Spelmezan

González

Subramanian

2016

2016 IEEE Haptics Symposium (HAPTICS)

View full text Add to dashboard Cite

Abstract-Recent developments in on-body interfaces have extended the interaction space of physical devices to the skin of our hands. While these interfaces can easily project graphical elements on the bare hand, they cannot give tactile feedback. Here we present a technology that could help to expand the output capability of on-body interfaces to provide tactile feedback without restricting the skin as an interaction surface. SkinHaptics works by focusing ultrasound in the hand using a phased array of ultrasound transmitters and the acoustic timereversal signal processing technique. We present experimental results that show that this device can steer and focus ultrasound on the skin through the hand, which provides the basis for the envisioned technology. We then present results of a study that show that the focused energy can create sensations that are perceived under the skin and in the hand. We demonstrate the potential of SkinHaptics and discuss how our proof-of-concept device can be scaled beyond the prototype.

show abstract

Section: Time-reversed Acousticsmentioning

confidence: 99%

SkinHaptics: Ultrasound focused in the hand creates tactile sensations

Spelmezan

González

Subramanian

2016

2016 IEEE Haptics Symposium (HAPTICS)

View full text Add to dashboard Cite

show abstract

“…Time reversal of flexural waves has been previously implemented on thin plates in (Hudin et al 2013), to address the multi-feedback challenge. The process relies on the focusing of flexural waves in a solid material.…”

Section: Dependence Of Time Reversal Of Acoustic Waves In Plates On Mmentioning

confidence: 99%

Dependence of time reversal of acoustic waves in plates on mean frequency and plate’s characteristics

et al. 2016

View full text Add to dashboard Cite

“…A transparent display providing localized tactile stimuli is presented in [53]. The working principle is based on the concept of computational time reversal and is able to stimulate one or several regions, and hence several fingers, independently.…”

Section: Flexural Wavesmentioning

confidence: 99%

“…Figure based on [2292 Tactile display using flexural waves: display during characterization with laser vibrometer (a) and reconstructed experimental out of plane displacement at focus time without finger load (b)[53] …”

mentioning

confidence: 99%

Actuator Design

Haus¹,

Kern²,

Matysek³

et al. 2014

Springer Series on Touch and Haptic Systems

View full text Add to dashboard Cite

Actuators are the most important elements of every haptic device, as their selection, respectively, their design influences the quality of the haptic impression significantly. This chapter deals with frequently used actuators structured based on their physical working principle. It focuses on the electrodynamic, electromagnetic, electrostatic, and piezoelectric actuation principle. Each actuator type is discussed as to its most important physical basics, with examples of their dimensioning, and one or more applications given. Other rarely used actuation principles are mentioned in several examples. The previous chapters were focused on the basics of control-engineering and kinematic design. They covered topics of structuring and fundamental character. This and the following chapters deal with the design of technical components as parts of haptic devices. Experience teaches us that actuators for haptic applications can rarely be found "off-the-shelf". Their requirements always include some outstanding features in rotational frequency, power density, working point, or geometry. These specialties make it necessary and helpful for their applicants to be aware of the capabilities and possibilities of modifications of existing actuators. Hence, this chapter addresses both groups of readers: users who want to choose a certain actuator and the mechanical engineer who intends to design a specific actuator for a certain device from scratch.Before a final selection of actuators is made, the appropriate kinematics and the control-engineering structure, according to the previous chapters, should have been fixed. However, in order to handle these questions in a reasonable way, some basic understanding of actuators is mandatory. In particular, the available energy densities, forces, and displacements should be estimated correctly for the intended haptic application. This section provides some suggestions and guidelines to help and preselect appropriate actuators based on the typical requirements. 9.1.

show abstract

Localized tactile stimulation by time-reversal of flexural waves: Case study with a thin sheet of glass

Cited by 14 publications

References 21 publications

SkinHaptics: Ultrasound focused in the hand creates tactile sensations

SkinHaptics: Ultrasound focused in the hand creates tactile sensations

Dependence of time reversal of acoustic waves in plates on mean frequency and plate’s characteristics

Actuator Design

Contact Info

Product

Resources

About