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Radar Display
A radar display is an electronic device to present radar data to the operator. The radar system transmits pulses or continuous waves of electromagnetic radiation, a small portion of which backscatter off targets (intended or otherwise) and return to the radar system. The receiver converts all received electromagnetic radiation into a continuous electronic analog signal of varying (or oscillating) voltage that can be converted then to a screen display. Modern systems typically use some sort of raster scan display to produce a map-like image. Early in radar development, however, numerous circumstances made such displays difficult to produce. People ultimately developed several different display types. Oscilloscopes Early radar displays used adapted oscilloscopes with various inputs. An oscilloscope generally receives three ''channels'' of varying (or oscillating) voltage as input and displays this information on a cathode ray tube. The oscilloscope amplifies the input voltag ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gunsight
A sight is an aiming device used to assist in visually aligning ranged weapons, surveying instruments or optical illumination equipments with the intended target. Sights can be a simple set or system of physical markers that have to be aligned together with the target (such as iron sights on firearms), or optical devices that allow the user to see an optically enhanced — often magnified — target image aligned in the same focus with an aiming point (e.g. telescopic sights, reflector sights and holographic sights). There are also sights that actively project an illuminated point of aim (a.k.a. "hot spot") onto the target itself so it can be observed by, such as laser sights and infrared illuminators on some night vision devices. Simple sights At its simplest, a sight typically has two components, front and rear aiming pieces that have to be lined up. Sights such as this can be found on many types of devices including weapons, surveying and measuring instruments, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
C-scope
A radar display is an electronic device to present radar data to the operator. The radar system transmits pulses or continuous waves of electromagnetic radiation, a small portion of which backscatter off targets (intended or otherwise) and return to the radar system. The receiver converts all received electromagnetic radiation into a continuous electronic analog signal of varying (or oscillating) voltage that can be converted then to a screen display. Modern systems typically use some sort of raster scan display to produce a map-like image. Early in radar development, however, numerous circumstances made such displays difficult to produce. People ultimately developed several different display types. Oscilloscopes Early radar displays used adapted oscilloscopes with various inputs. An oscilloscope generally receives three ''channels'' of varying (or oscillating) voltage as input and displays this information on a cathode ray tube. The oscilloscope amplifies the input voltage ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Height Finder
A height finder is a ground-based aircraft altitude measuring device. Early height finders were optical range finder devices combined with simple mechanical computers, while later systems migrated to radar devices. The unique vertical oscillating motion of height finder radars led to them also being known as nodding radar. Devices combining both optics and radar were deployed by the U.S. Military. Optical In World War II, a height finder was an optical rangefinder used to determine the altitude of an aircraft (actually the slant range from the emplacement which was combined with the angle of sight, in a mechanical computer, to produce altitude), used to direct anti-aircraft guns. Examples of American and Japanese versions exist. In the Soviet Union it was usually combined with optical rangefinders. Radar A height finder radar is a type of 2-dimensional radar that measures altitude of a target. The operator slews the antenna toward a desired bearing, identifies a target e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scopes S75
Scope or scopes may refer to: People with the surname * Jamie Scope (born 1986), English footballer * John T. Scopes (1900–1970), central figure in the Scopes Trial regarding the teaching of evolution Arts, media, and entertainment * CinemaScope or Scope prints, anamorphic film prints * ''Scope'' (magazine), a South African men's magazine * ''The Scope (alternative weekly)'', a newspaper in St. John's, Newfoundland * ''Scope'' (Australian TV series) * ''Scope'' (Irish TV series) * ''Scope'' (album), a 1979 studio album by Buck Hill Quartet Computing * Scope (computer science), the range in which a variable can be referenced * scope ( scopeArchiv), an archival information program * CDC SCOPE, a series of Control Data Corporation operating systems Concepts * Scope (logic), the range influenced by the quantification in logic * Scope (formal semantics), the natural language counterpart of logical scope * Scope (project management), the sum of all projects, products and th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
7JP4
The 7JP4 is an early black and white or monochrome cathode ray tube (also called picture tube and kinescope). It was a popular type used in late 1940s low cost and small table model televisions. The 7JP4 has a 7" diameter round screen which was often partially masked. Unlike later electromagnetically deflected TV tubes, the 7JP4 is electrostatically deflected like an oscilloscope tube. Development The 7JP4 is part of the 7JPx series of circular face electrostatic cathode ray tubes (CRT). Originally developed for radar applications as a display device for radar display A scopes around 1944. After World War 2 the CRT was adapted for television applications. There are three versions. The 7JP4 (P4 represents the phosphor that glows white and has medium persistence) for television. For oscilloscope applications the 7JP1 was used (P1 phosphor has a green trace and short persistence). Radar applications the 7JP7 was used (P7 phosphor has a blue-white trace with a long persistence). ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inverter
A power inverter, inverter or invertor is a power electronic device or circuitry that changes direct current (DC) to alternating current (AC). The resulting AC frequency obtained depends on the particular device employed. Inverters do the opposite of rectifiers which were originally large electromechanical devices converting AC to DC. The input voltage, output voltage and frequency, and overall power handling depend on the design of the specific device or circuitry. The inverter does not produce any power; the power is provided by the DC source. A power inverter can be entirely electronic or may be a combination of mechanical effects (such as a rotary apparatus) and electronic circuitry. Static inverters do not use moving parts in the conversion process. Power inverters are primarily used in electrical power applications where high currents and voltages are present; circuits that perform the same function for electronic signals, which usually have very low currents and vol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ASV Radar
The following meanings of the abbreviation ASV are known to Wikipedia: * Adaptive servo-ventilation, a treatment for sleep apnea * Air-to-Surface Vessel radar (also "anti-surface vessel"), aircraft-mounted radars used to find ships and submarines * American Society for Virology * American Standard Version, a translation of the Bible released in 1901 * Amplicon sequence variant, a term used to refer to individual DNA sequences recovered from a high-throughput marker gene analysis * Anodic stripping voltammetry, a voltammetric method for quantitative determination of specific ionic species * Armeesportvereinigung Vorwärts, a former East Germany military sports club * M1117 Armored Security Vehicle, an armored fighting vehicle produced by Textron * Asociación de Scouts de Venezuela, the Scouts Association of Venezuela * Astronomical Society of Victoria The Astronomical Society of Victoria (ASV) is an amateur astronomy club in the state of Victoria, Australia. It was founded in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lobe Switching
Lobe switching is a method used on early radar sets to improve tracking accuracy. It uses two slightly separated antenna elements to send the beam slightly to either side of the midline of the antenna. The radar signal switched between the two and produced two "blips" on the display. By comparing the lengths of the blips, the operator could find which one gave the stronger return, thereby indicating which direction the antenna should be moved to point directly at the target. The concept was used only briefly, and was almost completely replaced by conical scanning systems by the end of World War II. The concept is also infrequently referred to as sequential lobing, particularly when the signal steps between several different angles rather than just two. Description Early radar antennas generally consisted of a number of small dipole antennas in front of a passive reflector. The dipoles were placed in order to have them constructively interfere in front of the antenna, thereby "ai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fishfinder
A fishfinder or sounder (Australia) is an instrument used to locate fish underwater by detecting reflected pulses of sound energy, as in sonar. A modern fishfinder displays measurements of reflected sound on a graphical display, allowing an operator to interpret information to locate schools of fish, underwater debris, and the bottom of body of water. Fishfinder instruments are used both by sport and commercial fishermen. Modern electronics allows a high degree of integration between the fishfinder system, marine radar, compass and GPS navigation systems. Fathometer Fish finders were derived from ''fathometer''s, active sonar instruments used for navigation and safety to determine the depth of water. The fathom is a unit of water depth, from which the instrument gets its name. The fathometer is an echo sounding system for measurement of water depth. A fathometer will display water depth and can make an automatic permanent record of measurements. Since both fathometers and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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