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Vernier Scale Zero Error 0
Vernier may refer to: *Vernier, Switzerland * Vernier (surname) * Pierre Vernier, French mathematician and inventor of the Vernier scale *Vernier scale A vernier scale ( ), named after Pierre Vernier, is a visual aid to take an accurate measurement reading between two graduation markings on a linear scale by using mechanical interpolation, which increases resolution and reduces measurement un ..., a secondary measuring device * Vernier thruster, a secondary control mechanism on spacecraft * Vernier throttle, a secondary control mechanism on aircraft * Vernier Software & Technology, an educational technology supplier * Vernier acuity, a type of visual acuity See also * Marais-Vernier * Veneer (other) {{disambiguation, surname ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vernier, Switzerland
Vernier () is a Municipalities of Switzerland, municipality in the Canton of Geneva, in Switzerland. It is located in the western suburbs of Geneva. Toponymy The name "Vernier" comes from the Celtic languages, Celtic word "verne," which means alder. History In 1915, excavations uncovered mule and horse shoes from the time of the Roman Empire. After the fall of Rome, Vernier was inhabited by Germanic peoples, such as the Burgundians and Franks. It later became part of the Holy Roman Empire, within the County of Savoy and the Duchy of Savoy. In 1601, it joined the Kingdom of France. The French Revolution established Vernier as a municipality. It included three settlements : the village itself, along with the hamlets of Châtelaine and Aïre. After Napoleon's fall, Vernier joined Switzerland in 1815. At that time, Vernier, with 566 inhabitants, was rural. In 1858, the construction of the Lyon-Geneva railway spurred the first major economic boom, leading to the establishment of i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vernier (surname)
Vernier is a French surname. Notable people with the surname include: * Émile Louis Vernier (1829–1887), French painter * Marie Vernier (fl. 1590–1627), French actress and theatre director * Pierre Vernier (1580–1637), French mathematician and engineer * Pierre Vernier (born 1931), French actor {{surname, Vernier French-language surnames ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pierre Vernier
Pierre Vernier (; 19 August 1580 at Ornans, Franche-Comté (at that time ruled by the Spanish Habsburgs, now part of France) – 14 September 1637, same location) was a mathematician and instrument inventor. He was the inventor and eponym of the vernier scale used in measuring devices. Life He was born in Ornans, France, in 1580. He was taught science by his father. He became captain and castellan of the castle at Ornans, for the King of Spain. He was also later councillor and director general of economy in the County of Burgundy. In Brussels, in the year 1631, Vernier published his treatise ''La construction, l'usage, et les propriétés du quadrant nouveau de mathématique'', and dedicated it to the Infanta. In it, he described the ingenious device which now bears his name, the vernier scale. To a quadrant with a primary scale in half degrees Vernier proposed to attach a movable sector, thirty-one half degrees in length but divided into thirty equal parts (each pa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vernier Scale
A vernier scale ( ), named after Pierre Vernier, is a visual aid to take an accurate measurement reading between two graduation markings on a linear scale by using mechanical interpolation, which increases resolution and reduces measurement uncertainty by using vernier acuity. It may be found on many types of instrument measuring length or measuring angles, but in particular on a vernier caliper, which measures lengths of human-scale objects (including internal and external diameters). The vernier is a subsidiary scale replacing a single measured-value pointer, and has for instance ten divisions equal in distance to nine divisions on the main scale. The interpolated reading is obtained by observing which of the vernier scale graduations is coincident with a graduation on the main scale, which is easier to perceive than visual estimation between two points. Such an arrangement can go to a higher resolution by using a higher scale ratio, known as the vernier constant. A ver ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vernier Thruster
A vernier thruster is a rocket engine used on a spacecraft or launch vehicle for fine adjustments to the attitude or velocity. Depending on the design of a craft's maneuvering and stability systems, it may simply be a smaller thruster complementing the main propulsion system, or it may complement larger attitude control thrusters, or may be a part of the reaction control system. The name is derived from vernier calipers (named after Pierre Vernier) which have a primary scale for gross measurements, and a secondary scale for fine measurements. Vernier thrusters are used when a heavy spacecraft requires a wide range of different thrust levels for attitude or velocity control, as for maneuvering during docking with other spacecraft. On space vehicles with two sizes of attitude control thrusters, the main ACS (Attitude Control System) thrusters are used for larger movements, while the verniers are reserved for smaller adjustments. Due to their weight and the extra plumbing requi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vernier Throttle
A vernier throttle is a throttle often used in aircraft. It uses a cable and a screw mechanism to provide the operator precise control over an engine's operation. The concept is similar in use to vernier calipers which have a primary scale for gross measurements, and a secondary scale for fine measurements. Like other inventions that bear his name, the Vernier throttle is based on the work of mathematician Pierre Vernier Pierre Vernier (; 19 August 1580 at Ornans, Franche-Comté (at that time ruled by the Spanish Habsburgs, now part of France) – 14 September 1637, same location) was a mathematician and instrument inventor. He was the inventor and eponym o .... Vernier throttles are commonly used in aircraft. A similar mechanism is also used in reciprocating (gasoline) aircraft engines to set the mixture to an appropriate value for a given altitude. {{aircraft-stub Aircraft controls ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vernier Software & Technology
Vernier Science Education is an educational software company located in Beaverton, Oregon that produces sensor devices and graphing equipment. History Vernier Software & Technology was founded in 1981 in Portland, Oregon, at the home of David Vernier, a high-school physics teacher, and Christine Vernier, a local business manager. David Vernier became acquainted with the use of computers and sensor technology, known as "probeware" or "Microcomputer Based Labs" (MBL), after attending a workshop at the Oregon Graduate Center. This workshop inspired him to found Vernier Software & Technology. The first software programs developed by Vernier were scientific simulations for Apple II computers. He originally developed the programs for use in his physics classes, but later decided to sell them. His wife took out an advertisement in a newspaper and the programs became popular. Vernier Software & Technology was incorporated as a company in 1981, with David as CEO. Christine originally handl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
