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Truvelo Combi
Truvelo Combi is a speed camera manufactured by the South African company Truvelo Manufacturers (Pty) Ltd. It was approved in 1999. Background The Truvelo camera is usually a front-facing camera (it can also be rear-facing) taking pictures using a flash gun fitted with a magenta filter (the driver is less likely to be dazzled by the flash light). The reflected light provides the film with the correct exposure resulting in a clear picture of the driver committing the offence (considered as incriminating evidence). Piezo-electric road strips, a known distance apart (1.53 cm from 1 - 3, 2 - 4) are set into the road in front of the camera, and the time between compressions is measured using an impededance converter and two clocks in the camera to give the resulting speed of the vehicle. The system takes a single photograph (front-facing only, two for rear photography) and uses the time from the clocks to calculate the resulting speed. The photograph of the offending vehicle wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Truvelo Speed Camera
Truvelo may refer to: *Truvelo Combi Truvelo Combi is a speed camera manufactured by the South African company Truvelo Manufacturers (Pty) Ltd. It was approved in 1999. Background The Truvelo camera is usually a front-facing camera (it can also be rear-facing) taking pictures us ... -a speed camera * Truvelo Armoury - arms manufacturing division of Truvelo Specialised Manufacturing {{disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Speed Camera
In everyday use and in kinematics, the speed (commonly referred to as ''v'') of an object is the magnitude of the change of its position over time or the magnitude of the change of its position per unit of time; it is thus a scalar quantity. The average speed of an object in an interval of time is the distance travelled by the object divided by the duration of the interval; the instantaneous speed is the limit of the average speed as the duration of the time interval approaches zero. Speed is not the same as velocity. Speed has the dimensions of distance divided by time. The SI unit of speed is the metre per second (m/s), but the most common unit of speed in everyday usage is the kilometre per hour (km/h) or, in the US and the UK, miles per hour (mph). For air and marine travel, the knot is commonly used. The fastest possible speed at which energy or information can travel, according to special relativity, is the speed of light in a vacuum ''c'' = metres per second (ap ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South Africa
South Africa, officially the Republic of South Africa (RSA), is the Southern Africa, southernmost country in Africa. It is bounded to the south by of coastline that stretch along the Atlantic Ocean, South Atlantic and Indian Oceans; to the north by the neighbouring countries of Namibia, Botswana, and Zimbabwe; and to the east and northeast by Mozambique and Eswatini. It also completely Enclave and exclave, enclaves the country Lesotho. It is the southernmost country on the mainland of the Old World, and the List of countries and dependencies by population, second-most populous country located entirely south of the equator, after Tanzania. South Africa is a biodiversity hotspot, with unique biomes, plant and animal life. With over Demographics of South Africa, 60 million people, the country is the world's List of countries and dependencies by population, 24th-most populous nation and covers an area of . South Africa has three capital cities, with the executive, judicial and le ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Truvelo Manufacturers (Pty) Ltd
Truvelo Armoury is a South African firearms manufacturer. It is a division of Truvelo Specialised Manufacturing (Pty) Ltd. Based in Midrand (Johannesburg) the company produces a range of rifles and other small arms for military, law enforcement and civilian users. Products *Anti Material Rifles *Sniper Rifles * Assault Rifles *Rifle Accessories *Hunting Rifles *Rifle Actions & Barrels * Submachine guns Sniper Rifles Truvelo Sniper rifles are a family of bolt-action sniper rifles manufactured in South Africa in calibers ranging from 7.62×51mm NATO to 20×110mm. Models include: ;Sniper rifles: *7.62×51mm NATO *.338 Lapua Magnum *12.7×99mm NATO *14.5×114mm ;Anti-materiel rifles: *20×42mm *20×82mm * 20×110mm Libyan civil war controversy Discovery of Truvelo sniper rifles in Libya during the 2011 Libyan civil war caused considerable controversy, in parliament and in the press with various government officials making contradictory statements about the matter. The internation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Magenta
Magenta () is a color that is variously defined as pinkish- purplish- red, reddish-purplish-pink or mauvish-crimson. On color wheels of the RGB (additive) and CMY (subtractive) color models, it is located exactly midway between red and blue. It is one of the four colors of ink used in color printing by an inkjet printer, along with yellow, black, and cyan, to make all other colors. The tone of magenta used in printing is called "printer's magenta". It is also a shade of purple. Magenta took its name from an aniline dye made and patented in 1859 by the French chemist François-Emmanuel Verguin, who originally called it ''fuchsine''. It was renamed to celebrate the Italian-French victory at the Battle of Magenta fought between the French and Austrians on 4 June 1859 near the Italian town of Magenta in Lombardy. A virtually identical color, called roseine, was created in 1860 by two British chemists, Chambers Nicolson and George Maule. The web color magenta is also called ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Filter (photography)
In photography and cinematography, a filter is a camera accessory consisting of an optical filter that can be inserted into the optical path. The filter can be of a square or oblong shape and mounted in a holder accessory, or, more commonly, a glass or plastic disk in a metal or plastic ring frame, which can be screwed into the front of or clipped onto the camera lens. Filters modify the images recorded. Sometimes they are used to make only subtle changes to images; other times the image would simply not be possible without them. In monochrome photography, coloured filters affect the relative brightness of different colours; red lipstick may be rendered as anything from almost white to almost black with different filters. Others change the colour balance of images, so that photographs under incandescent lighting show colours as they are perceived, rather than with a reddish tinge. There are filters that distort the image in a desired way, diffusing an otherwise sharp image, ad ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Piezoelectricity
Piezoelectricity (, ) is the electric charge that accumulates in certain solid materials—such as crystals, certain ceramics, and biological matter such as bone, DNA, and various proteins—in response to applied mechanical stress. The word ''piezoelectricity'' means electricity resulting from pressure and latent heat. It is derived from the Greek word ; ''piezein'', which means to squeeze or press, and ''ēlektron'', which means amber, an ancient source of electric charge. The piezoelectric effect results from the linear electromechanical interaction between the mechanical and electrical states in crystalline materials with no inversion symmetry. The piezoelectric effect is a reversible process: materials exhibiting the piezoelectric effect also exhibit the reverse piezoelectric effect, the internal generation of a mechanical strain resulting from an applied electrical field. For example, lead zirconate titanate crystals will generate measurable piezoelectricity when their ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
D-cam
d-cam is a type of digital speed camera produced by the United Kingdom, British subsidiary of the South African company Truvelo Manufacturers (Pty) Ltd. Testing by Transport for London commenced on the A4 road (Great Britain), A4 Great West Road in London, in April 2007. The camera does not flash and can be used rear or forward-facing. It was the first combined traffic light camera and speed camera to be used in the United Kingdom. The new style of camera housing was designed by Bristol-based firm Crown (UK) Ltd. The equipment gained UK Home Office type approval early in 2014 and newly installed units started appearing shortly afterwards. See also *Truvelo Combi *Gatso *HOTA References External linksTruvelo (UK) [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gatso
Gatso is the brand that Gatsometer BV (now known as Sensys Gatso Group when Sensys acquired Gatso in 2015) use on their speed cameras and red light cameras. The most commonly encountered Gatso speed cameras emit radar beams to measure the speed of a passing vehicle. If it is travelling above the preset trigger speed, one or two photographs are taken (depending on the device's setting, which generally depends on the requirements of the local jurisdiction). These use a powerful flash, to show the rear of the vehicle, its registration plate, and calibration lines on the road (in many jurisdictions). Newer installations used digital cameras which have limited exposure latitude compared to film, these installations use an auxiliary flash placed close to the position where a speeding vehicle would exit the radar beam and the first photograph would be taken. Operation Gatso installations in the UK and in Queensland, Australia are characterised by a measurement strip on the road surfa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SPECS (speed Camera)
SPECS is an average speed measuring speed camera system introduced in 1999. It is one of the systems used for speed limit enforcement in the United Kingdom. SPECS was originally manufactured by Speed Check Services Limited, from which it takes its name. The company was acquired by Vysionics in 2010, which in turn was acquired by Jenoptik in 2014. About SPECS cameras SPECS cameras operate as sets of two or more cameras installed along a fixed route that can be from 75 metres (246 feet). Maximum distance was 10 km with SPECS1 (SVDD) but with the event of SPECS3 became unlimited although legal requirements limit the maximum practical distance. They work by using an automatic number plate recognition (ANPR) system to record a vehicle's front number plate at each fixed camera site. As the distance is known between these sites, the average speed can be calculated by dividing this by the time taken to travel between two points. The cameras use infrared photography, allowing the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
