2 edition of [Measuring electrically charged particle fluxes in space using a fiber optic loop sensor] found in the catalog.
[Measuring electrically charged particle fluxes in space using a fiber optic loop sensor]
by NASA Goddard Space Flight Center, Engineering Procurement Office in Greenbelt, MD
Written in English
|Statement||submitted by OPTRA, Inc.|
|Series||[NASA contractor report] -- NASA CR-191328., NASA contractor report -- NASA CR-191328.|
|Contributions||Goddard Space Flight Center. Engineering Procurement Office.|
|The Physical Object|
growing internet and data traffic, costs of fiber-optic components are continually decreasing. Research in fiber-optic sensors for railroad applications is a relatively new area and has progressed rapidly over the past five years. A fiber-optic sensor system was installed on a section of rail in the high-tonnage loop . The sensor is demonstrated by splicing a section of no-core fiber to an SMF. The no-core fiber length is mm, providing a peak wavelength of nm. Fi-nally the facet of the no-core fiber is coated with nm of gold using a thermal evaporator. The sensor is placed inside a channel formed in a block of acrylic to facilitateCited by:
The Faraday effect was the first magneto-optical effect to be proposed and demonstrated in fibre current sensors. Figure 1 shows a schematic configuration of the Faraday rotation. When a light beam passes through a glass medium in a magnetic field, its polarization vector is rotated in proportion to the by: A comprehensive introduction to this fast growing technology This book provides an introduction to the rapidly advancing and expanding field of fiber optic sensors, with chapters contributed by internationally recognized experts. Each of the three sections-Basic Components, Technology, and Applications-offers a stand-alone primer on a key area of the field.
Phase compensation in interferometric fiber-optic sensors. Dandridge A, Tveten AB. A new method of keeping interferometric fiber-optic sensor systems in quadrature by tuning the emission frequency of the laser-diode source is described. The compensation scheme has a better than 10(-5)-rad sensitivity and a usable tracking range. Cited by: •The sensing distances for the diffuse type fiber units are values on ☓ mm white paper. •Install with an ambient humidity between 35 and 85%.
study of the political career of the Domitii Ahenobardi in the republican period
Final report of Greater New Bedford PCB health effects study, 1984-1987
Costs in commercial banking.
Chess results, 1951-1955
Collective bargaining in the anthracite coal industry.
Dearest Love (Sealed With A Kiss)
Amish of Canada
Anthologia Anthropoplogca. the Native Races of Australaisa, Including Australia, New Zealand, Oceania, New Guinea and Indonesia
idealist view of life.
International meteorological vocabulary.
Art and the beauty of God
Some physical-chemical investigations on dermatan sulphate.
Full committee consideration of H.J. Res. 540 relating to Central America pursuant to the International Security and Development Cooperation Act of 1985
Sale of NPRs & oil shale reserves
A Fiber-Optic Current Sensor for Lightning Measurement Applications Truong X. Nguyen, Jay J. Ely, George N. Szatkowski NASA Langley Research Center, 1 S. Wright Street, Hampton, VA, USA ABSTRACT An optical-fiber sensor based on Faraday Effect is developed for measuring total lightning electric current.
It has manyCited by: 2. Fiber optic sensor for the space distribution measurement of magnetic field Article (PDF Available) in Journal of Electrical Engineering 63() September with 80 Reads. Measurement of Cerenkov light in a fiber-optic radiation sensor by using high-energy photon and electron beams Article (PDF Available) in Journal- Korean Physical Society 56(3) March.
To put Parker's fiber optic sensing development in perspective, the rate of information transfer from fiber optic sensors in the past was one sample every 30 seconds; Parker's algorithm increases that to sweeps of the laser that reads the sensors per second. Parker also has worked on miniaturization of fiber optic sensor systems.
A charged particle flux, as has been described, is the flow of electricity, and all circuits must complete. I suspect that in the flow of charged nanoparticles will be found lone electrons and. Fiber-Optic Current and Voltage Sensors for High-Voltage Substations K.
Bohnert, P. Gabus, and H. Brändle ABB Switzerland Ltd, Corporate Research, CH Baden-Dättwil, Switzerland Phone: +41 58Fax: +41 58E-mail: [email protected] Aftab Khan ABB Inc, Distribution Circle, Mount Pleasant, PAUSA ABSTRACT. Type of Fiber Optic Sensors/Fiber Unit Classification.
Fiber units have many variations. Because the fiber does not house any of the electronic components, there are very few limitations on size and shape.
The following is a classification example of KEYENCE’s fiber units (FU Series). The sensor discussed in this paper is optical fiber based. This sensor type is highly flexible and can measure electric current traveling through large structures.
By forming closed loop(s) around aircraft structures, the enclosed current can be measured. Fig. 1 illustrates fiber loops measuring total current flowing through structures of by: 6.
2 We are not aware of any examination of direct optical measurements of hydrodynamic parameters in the literature.
Phillip-Chandy et al1 designed a fiber optic drag-force flow sensor for measuring the speed and direction of fluid flow, and W. Jin et al2 has fabricated a fiber optic Bragg grating sensor for measuring flow-induced vibration on a circular cylinder in a cross-flow. Fiber Optic Sensor Commercialization Evolution Sensors Telecom R&D- Military and Industrial R&D- Telecommunications Laboratory Devices Multimode Systems; Mb/s transmission 1st Industrial Applications and Military Systems Advent of Single Mode Systems; Major.
INTERNATIONAL JOURNAL ON SMART SENSING AND INTELLIGENT SYSTEMS VOL. 7, NO. 4, DECEMBER MEASUREMENT AND ANALYSIS OF HIGH TEMPERATURE USING DISTRIBUTED FIBER OPTIC SENSOR Yongjiao Wang1, 2, Bin Yang 2 and Lei Liang1 1 National Engineering Laboratory for Fiber Optical Sensing Technology Wuhan University of Technology, File Size: KB.
Introduction. Optical fiber probes may be used for continuously measuring the particle concentration in liquid 1, 2or gaseous suspensions 3, 4: sedimentation, erosion 5, 6, pulverulent transport lines, circulating fluidized beds 7, 8, sensors are either based on forward scattering (inappropriate for concentrated suspensions) or on backscattering of light by particles (simpler and Cited by: A fiber-optic current sensor (FOCS) is a current sensor for measuring direct using a single-ended optical fiber around the current conductor that utilizes the magneto-optic effect (Faraday effect), FOCS measures uni- or bidirectional DC currents of up to kA within ±% of the measured value.: 2 Because it does not need a magnetic yoke, an FOCS is smaller and lighter than Hall.
Measuring the speed of light through a Fiber Optic material-Cont’d At this stage you realize that you need a light source, a starting time (a trigger) and an ending time (or receiver/detector).
The light source (laser), trigger and detector are mounted on the circuit board File Size: 93KB. A fiber-optic pH-sensor based on fluorescein immo- bilized by using this method of attachment has a response time of less than 5 sec and is reversible and reproducible.3 Other researchers have made gas-sensing fiber-optic sensors in either of two designs: (1) the reagent is mechanically fixed to the fiber tip, resulting "To whom correspondence Cited by: This book provides an introduction to the rapidly advancing and expanding field of fiber optic sensors, with chapters contributed by internationally recognized experts.
Each of the three sections-Basic Components, Technology, and Applications-offers a stand-alone primer on a key area of the : $ Fiber optic sensors with a random fiber patterns demonstrate high displacement sensitivity because of the close interaction between neighboring fibers, but have a short measurement range.
A hemispherical fiber distribution separates the transmitting and receiving fibers into two distinct groups, with one half of the probe tip composed of. High Speed Temperature Detectors The OS series high speed industrial fiber optic infrared transmitters measure temperature ranges from to ºC ( to °F) using three standard optical fields of view and three standard fiber optic cable lengths.
This unit offers many standard features such as adjustable Emissivity, linear analog output, high and low alarm voltage output, RS When your application calls for push button teach setup or a simple manual adjust fiber optic sensors look to Panasonic for the best solution. Panasonic also has over fiber optic sensors complimenting these best-in-class amplifiers.
If your solution r. The first edition of this book is still available in paper back and it is tightly integrated and written by many of the early pioneers of fiber optic sensor technology. These chapters are still current and provide a very good basis for introducing the field.5/5(6).
Figure A basic fiber optic sensor system consists of an optical fiber and a light modulating arrangement. The advantages of fiber-optic sensing are well known and have been widely presented [3, 4, ].
Comparing with the conventional electrical and electronic sensors, fiber-optic sensors (FOS) have inherent superiorities that others. The book is structured to support a variety of academic programs and it can also be used as a general reference by practicing engineers and scientists. has been revised to outline the new content of the second edition and provide a overview of the current status of fiber optic sensor technology.
9 Fiber Optic Sensors Based on the Sagnac Price: $ The book details structural fatigue monitoring for dams and bridges, the effect of external and environmental factors on fiber optic sensor performance, interferometer configuration multiplexing architecture, polarization fading mitigation, and system integration, and 4/5(3).