Western Michigan University graduate engineering students have come up with a sensor to study head impacts in football helmets.

Students developed the sensors on flexible plastic, which is put inside and outside the helmet. The sensors would communicate with an App on a smart phone to tell team doctors if a player has suffered an impact sufficient to cause a concussion.

The students say it would also record details about the impact for review later. They are now looking for investors for SafeSense Technologies LLC to help them make the device marketable.

The students say the technology can also be used by the military to measure the impact from bomb blasts.