Top Gopro Gimbal Brushless Products:
History
Cardan suspension in Villard de Honnecourt’s sketchbook (ca. 1230)
Early modern dry compass suspended by gimbals (1570)
The gimbal was first invented by the Greek inventor Philo of Byzantium (280220 BC). Philo described an eight-sided ink pot with an opening on each side, which can be turned so that while any face is on top, a pen can be dipped and inked – yet the ink never runs out through the holes of the other sides. This was done by the suspension of the inkwell at the center, which was mounted on a series of concentric metal rings which remained stationary no matter which way the pot is turned.
The authenticity of Philo’s description of a cardan suspension has been doubted by some authors on the ground that the part of Philo’s Pneumatica which describes the use of the gimbal survived only in an Arabic translation of the early 9th century AD. Thus, the sinologist Joseph Needham suspected Arab interpolation as late as 1965. However, Carra de Vaux, author of the French translation which still provides the basis for modern scholars, regards the Pneumatics as essentially genuine.
The historian of technology George Sarton (1959), too, asserts that it is safe to assume the Arabic version is a faithful copying of Philo’s original, and credits Philon explicitly with the invention. So does his colleague Michael Lewis (2001). In fact, research by the latter scholar (1997) demonstrates that the Arab copy contains sequences of Greek letters which fell out of use after the time of Christ, thereby strengthening the case that it is a faithful copy of the Hellenistic original, a view recently also shared by the classicist Andrew Wilson (2002).
The ancient author Athenaeus Mechanicus, who flourished during the reign of Augustus (30 BCD 14), described the military use of a gimbal-like mechanism, calling it little ape (pithkion): When preparing to attack coastal towns from the sea-side, military engineers used to yoke merchant-ships together to take the siege machines up to the walls. But to prevent the shipborne machinery from rolling around the deck in heavy seas, Athenaeus advises that you must fix the pithkion on the platform attached to the merchant-ships in the middle, so that the machine stays upright in any angle.
After antiquity, gimbals remained widely known in the Near East. In the Latin West, reference to the device appeared again in the 9th century recipe book called the Little Key of Painting (Latin: Mappae Clavicula). The French inventor Villard de Honnecourt depicts a set of gimbals in his famous sketchbook (see right).
In the early modern period, dry compasses were suspended in gimbals.
In China, the Han Dynasty (202 BC AD 220) inventor Ding Huan () created a gimbal incense burner around AD 180. There is a hint in the writing of the earlier Sima Xiangru (179117 BC) that the gimbal existed in China since the 2nd century BC. There is mention during the Liang Dynasty (502557) that gimbals were used for hinges of doors and windows, while an artisan once presented a portable warming stove to Empress Wu Zetian (r.
690705) which employed gimbals. Extant specimens of Chinese gimbals used for incense burners date to the early Tang Dynasty (618907), and were part of the silver-smithing tradition in China.
Inertial navigation
In inertial navigation, as applied to ships and submarines, a minimum of three gimbals is needed to allow an Inertial Navigation System platform (stable table) to remain fixed in inertial space, compensating for the ship’s Yaw (direction) as well as its Pitch and Roll. In this application, the Inertial Measurement Unit (IMU) is equipped with three orthogonally mounted gyros to sense rotation about all axes in three dimensional space.
The gyro outputs drive motors controlling the orientation of the three gimbals as required to maintain the orientation of the IMU. In turn, angular measurement devices called resolvers mounted on the three gimbals provide the nine cosine values for the direction cosine matrix needed to orient the ship.
Similar sensing platforms can be used on aircraft.
In inertial navigation systems, gimbal lock may occur when vehicle rotation causes two of the three gimbal rings to align with their pivot axes in a single plane. When this occurs, it is no longer possible to maintain the sensing platform’s orientation.
Rocket engines
In spacecraft propulsion, rocket engines are generally mounted on a pair of gimbals to allow a single engine to vector thrust about both the pitch and yaw axes; or sometimes just one axis is provided per engine. To control roll, twin engines with differential pitch or yaw control signals are used to provide torque about the vehicle’s roll axis.
Fishing
In big-game fishing, a two axis gimbal set may be used as a fixed pivot for the butt of the rod, with the gimbals mounted in a fighting belt or a fighting chair. In either case, this is a considerable advantage to the angler. Inside the gimbal there is usually a horizontal pin that the fishing rod locks into, preventing rotation about the long axis of the rod, making it easier to reel.
This is demonstrated in the 1975 film Jaws, where the character Quint uses a fighting chair and a fighting belt/harness to attempt to catch the shark they are pursuing.
See also
Gimbal lock
Canfield joint
Heligimbal
Cardan shaft
Gyroscope
Keyhole problem
References
^ Needham, Joseph. (1986). Science and Civilization in China: Volume 4, Physics and Physical Technology; Part 2, Mechanical Engineering. Taipei: Caves Books Ltd. Page 229.
^ a b c d Sarton, George. (1959). A History of Science: Hellenistic Science and Culture in the Last Three Centuries B.C. New York: The Norton Library, Norton Company Inc. SBN 393005267. Page 349350.
^ Ernest Frank Carter: ictionary of Inventions and Discoveries, 1967, p.74
^ Hans-Christoph Seherr-Thoss, Friedrich Schmelz, Erich Aucktor: niversal Joints and Driveshafts: Analysis, Design, Applications, 2006, ISBN 9783540301691, p.1
^ Robert E. Krebs, Carolyn A. Krebs: roundbreaking Scientific Experiments, Inventions, and Discoveries of the Ancient World, 2003, ISBN 9780313313424, p.216
^ Needham, Joseph. (1986). Science and Civilization in China: Volume 4, Physics and Physical Technology; Part 2, Mechanical Engineering. Taipei: Caves Books Ltd. Page 236.
^ D.R. Hill: History of Technology, Part 2 (1977), p.75
^ Carra de Vaux: Le livre des appareils pneumatiques et des machines hydrauliques de Philon de Byzance d’aprs les versions d’Oxford et de Constantinople, Acadmie des Inscriptions et des Belles Artes: notice et extraits des mss. de la Bibliothque nationale, Paris 38 (1903), pp.27-235
^ Sarton, George. (1959). A History of Science: Hellenistic Science and Culture in the Last Three Centuries B.C. New York: The Norton Library, Norton Company Inc. SBN 393005267. Page 343350.
^ M.J.T. Lewis: Surveying Instruments of Greece and Rome, Cambridge University Press, 2001, ISBN 9780521792974, p.76, Fn.45
^ M.J.T. Lewis: Millstone and Hammer: the Origins of Water Power (1997), p.26-36
^ Andrew Wilson: Machines, Power and the Ancient Economy, The Journal of Roman Studies, Vol 92. (2002), pp. 1-32 (7)
^ Athenaeus Mechanicus, On Machines (Peri Mchanmatn), 32.1-33.3
^ Needham, Joseph. (1986). Science and Civilization in China: Volume 4, Physics and Physical Technology; Part 2, Mechanical Engineering. Taipei: Caves Books Ltd. Page 229 231.
^ Needham, Joseph. (1986). Science and Civilization in China: Volume 4, Physics and Physical Technology; Part 2, Mechanical Engineering. Taipei: Caves Books Ltd. Page 233.
^ Needham, Joseph. (1986). Science and Civilization in China: Volume 4, Physics and Physical Technology; Part 2, Mechanical Engineering. Taipei: Caves Books Ltd. Page 233234.
^ Needham, Joseph. (1986). Science and Civilization in China: Volume 4, Physics and Physical Technology; Part 2, Mechanical Engineering. Taipei: Caves Books Ltd. Page 234.
^ Needham, Joseph. (1986). Science and Civilization in China: Volume 4, Physics and Physical Technology; Part 2, Mechanical Engineering. Taipei: Caves Books Ltd. Page 234235.
Categories: Mechanisms | Gyroscopes | Hellenistic engineeringHidden categories: Articles containing Latin language text
About the Author
Related to Gopro Gimbal Brushless:
new carbon fiber gimbal brushless camera mount motor for go pro dji phantom, tarot 2 axis gyroscope zyx22 gyro for tl68a08 t2d brushless gimbal gopro 3 fpv, dji phantom brushless gimbal camera mount w motor amp; controller for gopro 3 2 1, mount w motor amp; controller for gopro3 2 1 dji phantom brushless gimbal camera. dji phantom brushless camera gimbal wmotors amp; controller for gopro hero 3 fpv, mount w motor amp; controller for gopro 3 2 1 dji phantom brushless gimbal camera, brushless camera gimbal for dji phantom w motors amp; controller gopro hero 3 fpv, mount w motor amp; controller dji phantom brushless gimbal camera for gopro 3 2 1, dji phantom brushless gimbal camera mount w motor amp; controller for gopro3 fpv. brushless camera gimbal for gopro hero 3 fpv dji phantom w motors amp; controller, tarot 2 axis brushless gimbal for go pro with gimbal stabilize fpvzyx22, gimbal brushless readyedi 2axis for gopro replacement housing, tarot 2 axis brushless camera mount rack assembly fpv ptz gimbal gopro hero 3, dji phantom cnc metal brushless camera gimbal with motors controller for gopro 1, brushless gimbal for gopro hero 3 camera fpv multi rotor multicopter, dji phantom gopro 2 3 cnc metal brushless camera gimbal w motors amp; controller. tarot brushless gimbal t2d for gopro hero3 mount dji phantom tl68a00 fpv rtf, 2axis brushless camera gimbal mount rack assembly fpv ptz for gopro hero 3 dji, cnc dji phantom brushless gimbal camera mount wmotoramp;controller for gopro 321, tarot 2 axis gyroscope zyx22 gyro for tarot t2d brushless gimbal gopro 3 fpv. tall landing skid extension for dji phantom brushless gimbal gopro hero 3 tarot, dji phantom brushless gimbal camera mount 2motorcontroller for gopro3 black, tarot gopro two axis tilt tl68a00 brushless gimbal shock absorber group tl68a12, filter mountuv filter for tarot t2d dji h32d brushless gimbal gopro hero 3, dji phantom gopro brushless camera gimbal wmotors amp;controller for aerial movie. f450 quadcopter frame with mwc 2axis gopro 3 brushless gimbal amp; landing gear, mounting plate adapter for dji phantom transmit brushless gimbal gopro 3, aluminum brushless gimbal camera mount for gopro3 fpv aerial photography, gopro hero33 tarot brushless gimbal t2d 4 mount dji phantom v1 tl68a00 fpv rt, gopro hd brushless gimbal alu camera mount w motor for dji fpv aerial photograp, 221080t brushless motor hollow shaft for gopro brushless gimbal camera mount l, ldpower 2208 39g 3mm shaft gimbal brushless motor 80kv for 100200g gopro frame, tarot t2d 2 axis camera brushless gimbal tl68a08 no gyro for gopro hero 3 fpv, cnc brushless gimbal camera mount motor controller dji phantom fpv for gopro 3. brushless camera gimbal for gopro hero 3 dji phantom w motors amp; controller ptz, dji phantom gopro 2 3 cnc metal brushless camera gimbal w motors amp; controller, dji phantom gopro3 metal brushless camera gimbal with ald2208 motors, tarot 2 axis gyroscope zyx22 gyro for tl68a08 t2d brushless gimbal gopro 3 fpv, dji phantom gopro 2 3 cnc metal brushless camera gimbal w motors amp; controller s, tarot 2axis camera brushless gimbal stabilized mount tl68a00 fpv gopro 3 movie, dji phantom pitch control lever for brushless gimbal dji zenmuse h32d gopro 3 2, beholder lite gopro brushless gimbal rtg alexmos, beholder gopro brushless gimbal rtg, tarot brushless gimbal t2d for gopro hero3 3 mount dji phantom tl68a00 fpv rtf, new for dji phantom transmit brushless gimbal for gopro 3 mounting plate adapter, evvgc 32axis open source brushless fpv gopro 3 gimbal controller gy521 gyro, mounting plate adapter for dji phantom to tarot t2d brushless gimbal gopro 3 3, cnc dji phantom brushless gimbal camera wmount motor controller for gopro 3 1 2, cnc dji phantom brushless gimbal mount motor controller for gopro hero 3 1 2 3
HeliPal.com – Tarot T-2D Brushless Gimbal T2D – GoPro HERO 3 Stabilizer
- [ Athena Pro Street ] – Big Bear Choppers (USA): European Import by Midland…
- Big Bear Choppers
- Parts – Motorcycle Parts
- June 16, 2005 Part 3
- Review dunlop direzza dz101 tires