Tiny, Battery-Free Tracking Device Distress Beacon

Radio Transmission Towers Atop Mt. Wilson

Researchers made an accidental discovery that has revolutionize tracking devices – Think, Cheap, Powerful radio pulse emitters, that need no battery. The research were working on something unrelated to this, when they detected a powerful radio pulse coming from a bag of junk circuit boards and components, every time the bag was moved.

The source of the signal was tracked down, and the researchers worked on it, to develop – Agitate – a small device with two metal plates, that is no bigger than a coin. One plate is made of metal and the other a material that stores charge. When either one of the plates is moved, even a tiny amount, the mechanical energy of the movement is transformed into electrical energy that is released as a short radio pulse. The signal is very brief, only a second or two, but it is more powerful than the signal from a cell phone. The pulse is very precise and can be tracked to the device’s location.

http://m.core77.com/blog/technology/accidental_discovery_leads_to_tiny_battery-free_tracking_device_25369.asp

Enhanced by Zemanta
Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s