Featured Research

from universities, journals, and other organizations

UltraHaptics: It's magic in the air

Date:
October 7, 2013
Source:
University of Bristol
Summary:
A system that allows users to experience multi-point haptic feedback above an interactive surface without having to touch or hold any device will be unveiled at a conference for innovations in human-computer interfaces.

"Current systems with integrated interactive surfaces allow users to walk-up and use them with bare hands. Our goal was to integrate haptic feedback into these systems without sacrificing their simplicity and accessibility," said Tom Carter.
Credit: Image courtesy of University of Bristol

A system that allows users to experience multi-point haptic feedback above an interactive surface without having to touch or hold any device will be unveiled this week [Friday 11 October] at one of the world's most important conferences for innovations in human-computer interfaces.

Multi-touch surfaces offer easy interaction in public spaces, with people being able to walk-up and use them. However, people cannot feel what they have touched. A team from the University of Bristol's Interaction and Graphics (BIG) research group have developed a solution that not only allows people to feel what is on the screen, but also receive invisible information before they touch it.

The research paper, to be presented at the ACM Symposium on User Interface Software and Technology (UIST) 2013 by Tom Carter from the Department of Computer Science, will unveil UltraHaptics, a system designed to provide multipoint, mid-air haptic feedback above a touch surface.

UltraHaptics uses the principle of acoustic radiation force where a phased array of ultrasonic transducers is used to exert forces on a target in mid-air. Haptic sensations are projected through a screen and directly onto the user's hands.

The use of ultrasonic vibrations is a new technique for delivering tactile sensations to the user. A series of ultrasonic transducers emit very high frequency sound waves. When all of the sound waves meet at the same location at the same time, they create sensations on a human's skin.

By carrying out technical evaluations, the team have shown that the system is capable of creating individual points of feedback that are far beyond the perception threshold of the human hand. The researchers have also established the necessary properties of a display surface that is transparent to 40kHz ultrasound.

The results from two user studies have demonstrated that feedback points with different tactile properties can be distinguished at smaller separations. The researchers also found that users are able to identify different tactile properties with training.

Finally, the research team explored three new areas of interaction possibilities that UltraHaptics can provide: mid-air gestures, tactile information layers and visually restricted displays, and created an application for each.

Tom Carter, PhD student in the Department of Computer Science's BIG research group, said: "Current systems with integrated interactive surfaces allow users to walk-up and use them with bare hands. Our goal was to integrate haptic feedback into these systems without sacrificing their simplicity and accessibility.

"To achieve this, we have designed a system with an ultrasound transducer array positioned beneath an acoustically transparent display. This arrangement allows the projection of focused ultrasound through the interactive surface and directly onto the users' bare hands. By creating multiple simultaneous feedback points, and giving them individual tactile properties, users can receive localised feedback associated to their actions."

A video demonstrating UltraHaptics is available on YouTube.


Story Source:

The above story is based on materials provided by University of Bristol. Note: Materials may be edited for content and length.


Cite This Page:

University of Bristol. "UltraHaptics: It's magic in the air." ScienceDaily. ScienceDaily, 7 October 2013. <www.sciencedaily.com/releases/2013/10/131007104941.htm>.
University of Bristol. (2013, October 7). UltraHaptics: It's magic in the air. ScienceDaily. Retrieved October 20, 2014 from www.sciencedaily.com/releases/2013/10/131007104941.htm
University of Bristol. "UltraHaptics: It's magic in the air." ScienceDaily. www.sciencedaily.com/releases/2013/10/131007104941.htm (accessed October 20, 2014).

Share This



More Computers & Math News

Monday, October 20, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Facebook Says The DEA's Fake Accounts Go Too Far

Facebook Says The DEA's Fake Accounts Go Too Far

Newsy (Oct. 19, 2014) Facebook says the DEA violated its Terms of Service and that such impersonations damage the integrity of the site. Video provided by Newsy
Powered by NewsLook.com
Court Ruling Means Kids' Online Activity Could Be On Parents

Court Ruling Means Kids' Online Activity Could Be On Parents

Newsy (Oct. 17, 2014) In a ruling attorneys for both sides agreed was a first of its kind, a Georgia appeals court said parents can be held liable for what kids put online. Video provided by Newsy
Powered by NewsLook.com
For Google, Even A $16.5 Billion Earnings Report Is A Miss

For Google, Even A $16.5 Billion Earnings Report Is A Miss

Newsy (Oct. 17, 2014) Analysts were expecting more, but Google’s ad growth slowed on the quarter and the company is spending more of its money. Video provided by Newsy
Powered by NewsLook.com
Obama Signs Cybersecurity Order, Wants Safer Payments

Obama Signs Cybersecurity Order, Wants Safer Payments

Reuters - US Online Video (Oct. 17, 2014) President Barack Obama announces details of a new executive order designed to make federal payments safer following recent massive data breaches. Rough Cut (no reporter narration). Video provided by Reuters
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Space & Time

Matter & Energy

Computers & Math

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins