Lefevre the fiberoptic gyroscope, then you have come on to the faithful site. A wide variety of fiber optic gyroscope options are available to you, there are 119 suppliers who sells fiber optic gyroscope on, mainly located in asia. Another key application for sled is in navigation systems, primarily those in avionics and aerospace that use fiberoptic gyroscopes fogs to make precise rotation measurements 11,12. It is sometimes part of a ships set of compasses, which also include a conventional gyrocompass and a magnetic compass. The top countries of suppliers are china, hong kong s. Interference fiber optic gyroscope semantic scholar. Both optical gyroscopes, the ringlaser gyro rlg and the fiberoptic gyro fog, are based on the same sagnac effect, which shows that light traveling along a closed ring path in opposite directions allows one to detect rotation with respect to inertial space.
Sagnac effect, reciprocity, allfiber components, integrated optics, signal processing principles, and recent trends like multiaxis gyro with source sharing or multiplexing, and erbiumdoped fiber source. Find out information about laserfiber optic gyroscope. Fundamentals of the interferometric fiber optic gyroscope. The fiber optic gyroscope fog is a solid state rotation sensor with no moving parts. Everyday low prices and free delivery on eligible orders. An interferometric fiber optic gyroscope is formed by three essential components.
Modulated phase is used to compensate the phase of sagnac effect in digital closed. Laserfiber optic gyroscope article about laserfiber optic gyroscope by the free dictionary. Use features like bookmarks, note taking and highlighting while reading the fiberoptic gyroscope. This in turn links to a compass readout to provide a heading. A fibreoptic gyroscope fog senses changes in orientation using the sagnac effect, thus. Polarization maintaining fiber for gyroscopes ofs optics. The fiberoptic gyroscope started to be investigated in the mid 70s, opening the way for a fully solidstate rotation sensor. The implementation of the fiber optic gyroscope is mainly based on the segnik theory. The fiber optic gyroscope fog is based on the sagnac effect. Theoretical design of a depolarized interferometric fiber. Over one turn as in the original experiment 100 years ago, the effect is extremely weak but it can be increased with.
Introduction to programming in java r2 lightscribeservice lightscribeservice yeah, i. This books first edition was published in the early 1990s. Drawing on 15 years of research and developments, it describes the concepts that have emerged as the preferred solutions for obtaining a practical device, and provides access to the. However its principle of operation is instead based on the interference of light which has passed through a coil of optical. A fiberoptic gyroscope is a device that measures rotational movement of the platform or object it is on through the use of fiberoptic technology. We report the first proofofprinciple demonstration of the resonant optical gyroscope with reflector that we have recently proposed. It was firstly seen as limited to mediumgrade applications, but today, it reaches ultimate theoretical performance and surpasses its wellestablished competitor, the ring laser gyroscope, in terms of bias noise and longterm stability. Thanks to the ultralow propagation loss in optic fibers, ifogs was able to achieve extremely high sensitivity and has become a mature technology for inertial navigation systems 1. Conference paper pdf available may 2014 with 448 reads. Use features like bookmarks, note taking and highlighting while reading the fiberoptic gyroscope, second edition. Theoretical design of a depolarized interferometric fiberoptic gyroscope ifog on smf28 singlemode standard optical fiber based on closedloop sinusoidal phase modulation with serrodyne feedback phase modulation using simulation tools for tactical and industrial grade applications. Pdf highprecision fiber optical gyroscope with extended. The rotation sensing part of a fog consists of a very simple interferometer.
Fiberoptic laser gyroscope with current modulation of the. Scope of the presentation 4 the fiber optic gyroscope shall be described within this presentation, at first focusing on the interferometric roots according to sagnacs effect. I can t for the life of me settings dee application data pharaohs secret exe 20060324. The electronic part is a processing pcb that converts the optical module output into rate proportional voltages. The light from the external source s is split by the beamsp1itter bs and travels in the clockwise and counterc1ockwise direction.
This paper is a short analysis of key technological advantages of fiberoptic. Other articles where fiberoptic gyroscope is discussed. Yjunction and pair of pushpull lowvoltage phase modulators. Pdf fiber optical gyroscope for space applications researchgate. Design and development of fiber optic gyroscopes 2019 udd. Take fringe areas such as the caribbean, where reception can be so bad that stabilized antennas using traditional technology must be at least 42 inches in diameter and housed in a 50inch dome. Dimitrova4 1institute of solid state physics, bulgarian academy of sciences, so. Barriers absence of laser lack of experience working with optical fibers. We present an optical fiber gyroscope that, for the first time, is composed completely of singlemode fiberoptic components. Puech,fiberoptic rotation sensors, springer series in optical sciences, vol. Lefevre is chief scientific officer of ixblue in france.
If the basic design rules of the fog have remained unchanged, the technology has. Herve lefevre, the fiberoptic gyroscope, 1993, artech house. In order to navigate out of this carousel please use your heading shortcut key to navigate to. Pdf the operation of fiber optic gyro is based on the sagnac effect. Napolitano 102010 fabien napolitano ixsea, an ixblue company chief product development officer 1 introduction this paper is a short analysis of key technological advantages of fiberoptic gyroscope fog. Lefevre fiber optic gyro pdf download lefevre fiber optic gyro pdf. The fiber optic gyroscope a sagnac interferometer for. Download full version here if you are searching for the ebook by herve c. Lefevre the fiberoptic gyroscope in pdf form, then you have come on to loyal site. This reference presents a system analysis of the fibreoptic gyro. The rlg was demonstrated only a few years after the invention of the laser in 1960, and it is based on heliumneon hene technology. The fiberoptic gyroscope, second edition kindle edition by lefevre, herve c download it once and read it on your kindle device, pc, phones or tablets.
A free powerpoint ppt presentation displayed as a flash slide show on id. This system has increased simplicity and stability over previous bulkoptic designs and has the potential for very high rotation sensitivity. A fibre optic gyrocompass is a compass and instrument of navigation. Interference fiber optic gyroscope ifog is a novel optical rotation sensor based on sagnac effect. An optical fibre loop 500m in length represents a phase delay of the order of 10 radians.
We demonstrate that by driving a fiber optic gyroscope fog with a laser of relatively broad linewidth 10 mhz, both the noise and the bias drift are reduced to very low levels 0. George sagnac published his results in 19 and is credited with the effect. Fogs measure the sagnac phase shift of optical radiation. Protonexchanged linbo 3 integratedoptic circuit very high polarizer rejection manufactured by ixblue. This platform can be anything that moves, including a car, boat, airplane or spacecraft. Pdf the threeaxis closedloop fiber optic gyroscopes are described. The fiberoptic gyroscope, second edition, lefevre, herve. A fibreoptic gyroscope fog senses changes in orientation using the sagnac effect, thus performing the function of a mechanical gyroscope. Written by one of the fields leading experts, this landmark reference presents a thorough system analysis of the fiberoptic gyroscope fog, describing the concepts that have emerged as the preferred solutions for obtaining a practical device.
Bowers department of electrical and computer engineering, university of california, santa barbara, ca. The fiberoptic gyroscope started to be investigated 35 years ago, opening the way for a fully solidstate rotation sensor. We present full variation of this ebook in epub, djvu, pdf, doc, txt forms. Fiber optic gyroscopes polarization maintaining pm optical fiber is a key component of fiber optic gyroscopes, devices that measure rotation in missiles, aircraft, ships and satellites. The fiberoptic gyroscope artech house optoelectronics library herve c. Inertial rotation is measured in ifog as the phase difference between two lightwaves traveling in opposite direction around fiberoptic sensing loop. They are a type of interferometric sensor in which the phase difference between two light paths is measured. The compass comprises a fibre optic gyroscope sensor, which links to a computer and then locates north. Realizing the potential of the fiber optic gyro, like the ring laser gyro, has been a long. Integrated optical driver for interferometric optical. It was firstly seen as limited to mediumgrade applications, but today, it reaches. He earned his doctorate in opticsphotonics from the university of parisorsay in 1979.
The fiberoptic gyroscope, second edition optoelectronics. The presented method, based on the theory and equations of fiber optic gyroscope, gives a possibility to select appropriate interferometric fiber optic gyroscope ifog parameters and components. Now the development of lowloss optical fibers and compact and reliable semiconductor light sources for the telecommunication industry has made possible a new approach. His doctorate research was performed at thales formerly thomsoncsf central research laboratory and his thesis subject was pioneering work on the fiberoptic gyroscope.
Pdf interferometric closedloop fiberoptic gyroscopes. Kvhs new g8 antenna is the first to pack the technology into a 32inch carbonfiber dish in a 34inch dome. Introducti on optical fiber gyroscope the basis for the optical fiber gyroscope is the sagnac effect sagnac, 19. For the moment, they make use of mechanical gyroscopes or gas laser gyroscopes. Fundamentals of the interferometric fiberoptic gyroscope. Ppt optical gyroscope powerpoint presentation free to. Laserfiberoptic gyroscope article about laserfiber. The first integrated optical driver chip for fiber optic. However its principle of operation is instead based on the interference of light which has passed through a coil of optical fibre, which can be as long as 5 km. The fiberoptic gyroscope by herve c lefevre, hardcover. The saab fog sensor is a fiber optic ring interferometer comprising fiber coil, phase modulator, two fused fiber optic couplers, fiber optic polariser, superluminescent light module and photo receiving module with preamplifier.
This shopping feature will continue to load items when the enter key is pressed. The interferometer includes a beam splitter and a single length of fiber formed into a loop. Integrated optical driver for interferometric optical gyroscopes minh a. The results illustrate the versatility of the technology, showing its potential. Lefevre, fiberoptic gyroscope, in optical fiber sensors, vol.
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