A nice summary of the FAA and FOD detection appeared recently at Aviation International News, see the source article here, snippets below:
QinetiQ’s Tarsier uses a fairly powerful scanning radar, generally requiring two separate radars set back from the runway and overlapping to cover an 11,000-foot runway, as well as a slewable, military-grade camera for close target inspection. Recently, the UK company announced the integration of Tarsier with a runway and taxiway acoustic sensing system to warn of potential runway incursions.
The iFerret system from Singapore-based Stratech Systems typically uses eight non-radar “intelligent vision” electro-optic sensors alongside, but set back from, the runway. The sensors capture images in full HD quality, with a 70X zoom capability that allows swift visual assessment of FOD. The system’s software-controlled optics also compensate for changing ambient light levels to maintain daylight-like images in darkness.
The mobile FOD Finder, the system employed at Yuma, incorporates into one pallet a radar, radome, electronics, wireless data transfer and 360-degree zoom cameras, and is operable while moving in a half-ton truck. Surface-mounted FOD Finders can be rapidly linked to create a temporary or permanent fixed array along a runway. When the system is mobile, a powerful vacuum system can recover FOD while moving. The device is offered by San Diego-based Trex Industries.
The FOD detection system from Tel Aviv-based Xsight uses existing runway-edge light fixtures as mounting bases. A weatherproof above-ground unit holds scanning radar and zoom camera. Watertight electronic units, power and communication equipment contained in an underground chest support the mounting base. Runway cameras are individually slewed via consoles in the control tower. The system is deployed on dual runways at Bangkok Suvarnabhumi International.
Source (AIN Online)