摘要:
Some embodiments relate to an optical microphone according to an example embodiment. The optical microphone includes a semiconducting laser. The semiconducting laser includes a p-n junction within a cavity. The optical microphone further includes an acoustic membrane that receives coherent light emitted from the semiconducting laser and directs reflected light back toward the semiconducting laser. During operation of the optical microphone, the acoustic membrane flexes in response to pressure waves. The phase of the reflected light is dependent upon a distance of the acoustic membrane from the semiconducting laser.
摘要:
An approach for making thin flexible circuits. A layer of dielectric may have one or two surfaces coated with metal. The dielectric and the metal may each have a sub-mil thickness. The dielectric may be held in a fixture for fabrication like that of integrated circuits. The metal may be patterned and have components attached. More layers of dielectric and patterned metal may be added to the flexible circuit. Also bond pads and connecting vias may be fabricated in the flexible circuit. The flexible circuit may be cut into a plurality of smaller flexible circuits.
摘要:
An apparatus for remote detection or neutralization of an explosively formed penetrator device. A LIDAR or LADAR unit may be used in conjunction with a RADAR unit to both detect the presence of an EFP and neutralize the EFP having an associated passive infrared sensor. The LIDAR unit's wavelength is selected to approximate the signature from the intended EFP target which then causes the safe remote detonation of the EFP. The detected EFP signature may be compared with known signatures and presented to a user via a display terminal. The display terminal may also present associated terrain or GPS data.