|
Optronique Secteur Frontal
The ''Optronique Secteur Frontal'' (OSF) iterally: Frontal Sector Optronicsis a long-range optoelectronics system, developed for the French Dassault Rafale combat aircraft. It allows target tracking through IRST (infrared search and track An Infrared Search and Track (IRST) system (sometimes known as infrared sighting and tracking) is a method for detecting and tracking objects which give off infrared radiation, such as the infrared signatures of jet aircraft and helicopters.Mahu ...) and visual sensors. On the left, the main IR detector can be used as forward-looking infrared (FLIR) sending a video signal to the pilot, or to detect air targets at ranges up to 100 km and ground or sea targets up to 6 km. On the right, a TV/IR sensor is used for target identification within a 40 km range including a laser rangefinder. Visible waveband capability is included to identify targets in situations where visual identification is required by the rules of engagement.Dassault Aviat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rafale B At Paris Air Show 2007
The Dassault Rafale (, literally meaning "gust of wind", or "burst of fire" in a more military sense) is a French twin-engine, canard delta wing, multirole fighter aircraft designed and built by Dassault Aviation. Equipped with a wide range of weapons, the Rafale is intended to perform air supremacy, interdiction, aerial reconnaissance, ground support, in-depth strike, anti-ship strike and nuclear deterrence missions. It is referred to as an "omnirole" aircraft by Dassault. In the late 1970s, the French Air Force and French Navy sought to replace and consolidate their existing fleets of aircraft. In order to reduce development costs and boost prospective sales, France entered into an arrangement with the UK, Germany, Italy and Spain to produce an agile multi-purpose "Future European Fighter Aircraft" (which would become the Eurofighter Typhoon). Subsequent disagreements over workshare and differing requirements led France to pursue its own development programme. Dassa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Optoelectronics
Optoelectronics (or optronics) is the study and application of electronic devices and systems that find, detect and control light, usually considered a sub-field of photonics. In this context, ''light'' often includes invisible forms of radiation such as gamma rays, X-rays, ultraviolet and infrared, in addition to visible light. Optoelectronic devices are electrical-to-optical or optical-to-electrical transducers, or instruments that use such devices in their operation. '' Electro-optics'' is often erroneously used as a synonym, but is a wider branch of physics that concerns all interactions between light and electric fields, regardless of whether they form part of an electronic device. Optoelectronics is based on the quantum mechanical effects of light on electronic materials, especially semiconductors, sometimes in the presence of electric fields. * Photoelectric or photovoltaic effect, used in: ** photodiodes (including solar cells) ** phototransistors ** photomult ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dassault Rafale
The Dassault Rafale (, literally meaning "gust of wind", or "burst of fire" in a more military sense) is a French Twinjet, twin-engine, Canard (aeronautics), canard delta wing, Multirole combat aircraft, multirole fighter aircraft designed and built by Dassault Aviation. Equipped with a wide range of weapons, the Rafale is intended to perform air supremacy, Air interdiction, interdiction, aerial reconnaissance, close air support, ground support, in-depth strike, anti-ship warfare, anti-ship strike and Nuclear warfare, nuclear deterrence missions. It is referred to as an "omnirole" aircraft by Dassault. In the late 1970s, the French Air Force and French Navy sought to replace and consolidate their existing fleets of aircraft. In order to reduce development costs and boost prospective sales, France entered into an arrangement with the UK, Germany, Italy and Spain to produce an agile multi-purpose "Future European Fighter Aircraft" (which would become the Eurofighter Typhoon). Sub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Combat Aircraft
A military aircraft is any fixed-wing or rotary-wing aircraft that is operated by a legal or insurrectionary military of any type. Some military aircraft engage directly in aerial warfare, while others take on support roles: * Combat aircraft, such as fighters and bombers, are designed to destroy enemy equipment or personnel using their own ordnance. Combat aircraft are typically developed and procured only by military forces. * Non-combat aircraft, such as transports and tankers, are not designed for combat as their primary function but may carry weapons for self-defense. These mainly operate in support roles, and may be developed by either military forces or civilian organizations. History Lighter-than-air In 1783, when the first practical aircraft (hot-air and hydrogen balloons) were established, they were quickly adopted for military duties. The first military balloon unit was the French Aerostatic Corps, who in 1794 flew an observation balloon during the Battle o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Infrared Search And Track
An Infrared Search and Track (IRST) system (sometimes known as infrared sighting and tracking) is a method for detecting and tracking objects which give off infrared radiation, such as the infrared signatures of jet aircraft and helicopters.Mahulikar, pp. 218-245 IRST is a generalized case of Forward Looking Infrared (FLIR), i.e. from forward-looking to all-round situation awareness. Such systems are passive (thermographic camera), meaning they do not give out any radiation of their own, unlike radar. This gives them the advantage that they are difficult to detect. However, because the atmosphere attenuates infrared to some extent (although not as much as visible light) and because adverse weather can attenuate it also (again, not as badly as visible systems), their range compared to a radar is limited. Within range, an IRST's angular resolution is better than radar due to the shorter wavelength. History Early systems The first uses of an IRST system appeared in the F-101 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Forward-looking Infrared
Forward-looking infrared (FLIR) cameras, typically used on military and civilian aircraft, use a thermographic camera that senses infrared radiation. The sensors installed in forward-looking infrared cameras, as well as those of other thermal imaging cameras, use detection of infrared radiation, typically emitted from a heat source ( thermal radiation), to create an image assembled for video output. They can be used to help pilots and drivers steer their vehicles at night and in fog, or to detect warm objects against a cooler background. The wavelength of infrared that thermal imaging cameras detect is 3 to 12 μm and differs significantly from that of night vision, which operates in the visible light and near-infrared ranges (0.4 to 1.0 μm). Design Infrared light falls into two basic ranges: ''long-wave'' and ''medium-wave''. Long-wave infrared (LWIR) cameras, sometimes called "far-infrared", operate at 8 to 12 μm and can see heat sources, such as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laser Rangefinder
A laser rangefinder, also known as a laser telemeter or laser distance meter, is a rangefinder that uses a laser beam to determine the distance to an object. The most common form of laser rangefinder operates on the time of flight principle by sending a laser pulse in a narrow beam towards the object and measuring the time taken by the pulse to be reflected off the target and returned to the sender. Due to the high speed of light, this technique is not appropriate for high precision sub-millimeter measurements, where triangulation and other techniques are often used instead. Laser rangefinders are sometimes classified as type of handheld scannerless lidar. Pulse The pulse may be coded to reduce the chance that the rangefinder can be jammed. It is possible to use Doppler effect techniques to judge whether the object is moving towards or away from the rangefinder, and if so, how fast. Precision The precision of an instrument is correlated with the rise time, divergence, and po ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
