As the name indicates, ultrasonic sensors measure distance by using ultrasonic waves. The basic working principle of these sensors is based on echolocation, which involves transmission of ultrasonic waves to the target object, which reflects it back to the source after receiving the initial wave. The ultrasonic sensors detect the exact …

Deep sea reach is important to Navies which can collect the information about enemy submarines as well as carry out their own operations undetected. China continues to make progress in deep sea exploration following the three-month mission of a new underwater glider in the South China Sea, which experts said …

Military studies have shown that adversaries have shifted to the use of underground bunkers to protect against the U.S. military’s precision strike capabilities that combine satellite navigation with guided missiles and bombs. To counter American precision strikes, China, Russia, North Korean, and Iran began burying facilities and hardening them with …

SMEs contribute to more than one third of GDP in emerging and developing economies and account for 34% and 52% of formal employment respectively. SMEs and young firms that experience rapid growth can have a considerable impact on employment creation and productivity growth, including through innovation, heavy investments in human …

A battery is an electrochemical device that stores electrical energy as chemical energy in its anode and cathode during the charging process, and when needed, releases the energy as electrical output during the discharge. An ideal battery is expected to have high specific energy, high power density, long cycle life, …

Robots have already become an indispensable part of our lives. However currently, most robots are relatively rigid machines which make unnatural movements. In contrast, humans seem to be able to manipulate objects with our fingers with incredible ease like sifting through a bunch of keys in the dark, tossing and …

Electromagnetic waves in the millimeter-wave band  (with frequencies between 30 and 300 GHz, or wavelengths between 10 and 1.0 mm) have attractive characteristics. One of their features is the wider usable frequency band compared with waves in the microwave band or lower bands. Another feature of using the millimeter-wave band is the fact …

Among the uses of Laser directed energy weapons (DEW) systems are providing very short-range air defense capability, close-in protection for naval vessels, counter-unmanned aerial vehicle (UAV), and protecting friendly forces from mortar and artillery attack. Laser require a power of the order of 100 kW,  to be employed as directed energy …

Naval Warships now faces wide spectrum of threats from air threats such as hypersonic missiles, ballistic and cruise missiles, rail guns, lasers , UAVs  and underwater threats like cavitating torpedoes.  One of the prime over water threat is from Anti-Ship Missiles type of guided missiles mostly of the sea skimming …

Countries like US, Russia and china are racing to deploy combat robots and drones on the battlefield and are investing in their research and development to have a military edge over other countries. Various militaries are fielding unmanned systems for surveillance, intelligence, logistics, or attack missions to make their forces or …