Kate Greene

A View from Kate Greene

Touchy-Feely Robot Hand

Intel shows off a robot hand that can sense before it grabs and hold things with a gentle touch.

  • June 13, 2008

Robots are mainstays in factories and manufacturing plants, but in most parts of the world, they aren’t found in homes, interacting with people. Part of the problem, says Intel senior researcher Josh Smith, is that today’s robots don’t have the capability to perform spontaneous close-range interactions well. Grabbing a silicon wafer is one thing, but gently helping an elderly person out of a chair is something completely different.

So last September, Smith and his team developed a technology they call pre-touch, which can sense the location of an object about an inch away from the robot grabber. Pre-touch electrodes, positioned at the ends of robot fingers, emit a small electrical field. When a conducting object, such as metal or anything with water in it, comes within range, it changes the fingers’ electric field. Algorithms process this change in electric field and essentially create a visual map of an object’s position.

At a recent Intel Research event in Mountain View, CA, Smith showed off his latest version of the robot hand. In addition to the pre-touch sensors, he’s added a strain gauge that measures the amount of force exerted by each robotic finger. The force applied by each finger can indicate to the robot that an object is slipping or that it’s securely encircled by all fingers. Once the object is positioned well, the mechanical fingers close around it, squeezing only hard enough to keep the object from slipping. See a video of the action below.

Learn more about robotics at EmTech Digital 2017.
Register now

Uh oh–you've read all five of your free articles for this month.

Insider Premium

$179.95/yr US PRICE

More from Intelligent Machines

Artificial intelligence and robots are transforming how we work and live.

Want more award-winning journalism? Subscribe to Insider Premium.

  • Insider Premium {! insider.prices.premium !}*

    {! insider.display.menuOptionsLabel !}

    Our award winning magazine, unlimited access to our story archive, special discounts to MIT Technology Review Events, and exclusive content.

    See details+

    What's Included

    Bimonthly home delivery and unlimited 24/7 access to MIT Technology Review’s website.

    The Download. Our daily newsletter of what's important in technology and innovation.

    Access to the Magazine archive. Over 24,000 articles going back to 1899 at your fingertips.

    Special Discounts to select partner offerings

    Discount to MIT Technology Review events

    Ad-free web experience

    First Look. Exclusive early access to stories.

    Insider Conversations. Join in and ask questions as our editors talk to innovators from around the world.

You've read of free articles this month.