Ultra-Compact Laser Warning Sensor
An infantry soldier can use the device to take an evasive action in the
event of getting exposed to hazardous laser raDIATion. The gadget with slight
modification can be adapted to multi-sensor configuration to give it 360°
azimuth coverage. One such application would be helmet-mounted system where
three such sensors provide full 360° battlefield coverage. The gadget can also
be integrated with an indigenously developed dedicated counting module to give a
cumulative count of total number of laser threats received during a given time
period; a feature extremely useful for training of weapon crew. The sensor is a
totally indigenous effort, both in design and implementation.
DRDO has developed a compact sector-sensing laser warning sensor capable of
giving warning against existence of a laser threat in the form of an audio beep
as well as a visual display when exposed to raDIATion from typical existing and
emerging battlefield solid-state lasers such as laser range finders, laser
target designators and EOCM-class of lasers.
The sensor in the present form has a 150° wide field-of-view and an operational
range in excess of 3 km. It is capable of providing information on the
direction-of-arrival of the laser threat in three pre-defined sectors of 50°
each within the overall field-of-view of 150°. The gadget provides a direct
reading display of the sector of arrival of the laser threat and is capable of
discriminating between low PRF laser threats such as those from hand-held range
finders and high PRF laser threats such as those from laser target
designators.The compact size and lightweight, given its features and
capabilities, has been made possible due to employment of most optimum and best
suited design methodology and use of state-of-the-art components. The device,
inclusive of an in-built battery pack, measures 160 mm × 120 mm × 90 mm and
weighs 2 kg.
The sensor can be adapted to multi-sensor configuration to get full 360° azimuth
coverage. The a smoke/aerosol screening system to build a laser-based protection
system for tanks, and AFV. The sensor is aotally indigenous effort both in
design and implementation.
Sensing Laser Warning Sensor
A precision direction sensing laser warning sensor, capable of giving audio and
visual warning when the platform using this device is exposed to laser raDIATion
in the wavelength band of 700-1100 nm, has been developed. The sensor has an
operational range of 5 km and measures the direction-of-arrival of the laser
threat with an accuracy of ±3°. It can distinguish between threats from low PRF
laser range finders and those from high PRF laser target designators. The sensor
in the present form has a field-of-view of 90° in azimuth and -5° to +25° in
elevation. It is adaptable to multi-sensor configuration for 360° azimuth
coverage. It operates from 12 V DC and can be configured to operate from power
supply available on the platform.
Laser warning sensor configured as a multi-sensor arrangement and interfaced
with a suitable smoke/aerosol screening system can be used effectively on
platforms like main battle tanks, AFV, etc., to provide platform protection from
laser-guided munitions. The development of this sensor is a totally indigenous
effort, both in design and implementation.