How It Works: A Smarter Crash-Test Dummy

The General Motors Anthropomorphic Test Device Photographs: John B. Carnett; digital imaging: Eric Heintz

In a typical day at General Motors Anthropomorphic Test Device (ATD) lab in Milford, Michigan, a crash-test dummy is decapitated, rammed in the chest, and contorted by a torsion machine, and that’s just to set a baseline. Many safety innovations—crumple zones and smart airbags among them—are the result of such careful calibration. And with today’s ATDs carrying up to 192 sensors, safety engineers can predict the risk of injury more accurately than ever before.

To that end, the newest generation of dummies is getting an upgrade. Improvements include faster data collection and RibEye, a chest cavity loaded with sensors that helps engineers better understand how the rib cage compresses during a crash. “Now,” says Michael Jarouche, a vice president at Humanetics Innovative Solutions, which supplies dummies to all the major automakers, “we just have to figure out how to give the dummy internal organs.”

Click the image above to see how the GM Anthropomorphic Test Device gathers data during a crash. If you are unable to view Flash files, click here for a static version.

More How It Works:

• A Smarter Crash-Test Dummy
• An Affordable Telephoto Lens
• 3-D TV Without Glasses
• World's Fastest Roller Coaster
• An Implantable Bionic Eye
• The Make-All 3-D Printer
• Better Curve Control
• The Light-Driven Computer

This month's How It Works section is brought to you by Digikey. All posts are purely editorial content, which we are pleased to present with the help of a sponsor; the sponsor has no input in the content itself.