13 pages, 8 pages of figures : 28 cm
Topics: Magnetometers, Marine geophysics, Magnetometers, Marine geophysics
The objective of this thesis was to further the development of a personal position tracking system using MARG sensors. This work advanced the method by which distance and heading were calculated of an individual wearing one MARG sensor on his/her foot when moving about under normal walking conditions. Data was collected from the foot-mounted sensor while walking a straight-line path, a square path, and climbing stairs. The corresponding data from these activities was then used in a Matlab...
Topics: Electrical engineering, Biomechanics, Magnetometers
16 pages : 28 cm
Topics: Marine geophysics -- Arctic Ocean, Magnetometers -- Arctic Ocean, Magnetometers, Marine geophysics,...
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May 6, 2010
05/10
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Gold, T
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Fabrication of ferrite core magnetometers
Topics: FABRICATION, FERRITES, MAGNETOMETERS, FERRITE, MAGNETOMETER
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Apr 13, 2016
04/16
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United States. Office of Scientific Research and Development. National Defense Research Committee, issuing body
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Title on half-title page: Summary technical report of the National Defense Research Committee
Topics: Vehicles, Military, Aerial reconnaissance, Magnetometers, Aeronautics, Military
Two methods of estimating the attitude position of a spacecraft are examined in this thesis: the extended Kalman filter (EKF) and the unscented Kalman filter (UKF). In particular, the UnScented QUaternion Estimator (USQUE) derived from [4] is implemented into a spacecraft model. For generalizations about the each of the filters, a simple problem is initially solved. These solutions display typical characteristics of each filter type. The UKF is very attractive in spacecraft attitude estimation,...
Topics: Space vehicles, Kalman filtering, Gyroscopes, Magnetometers, Engineering
8, [19] pages : 28 cm
Topics: Sounding and soundings, Magnetometers, Drifting ice stations, Oceanographic instruments, Drifting...
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735
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Manual for operation of ferrite fluxgate magnetometer
Topics: DEMODULATION, FERRITES, MAGNETIC FIELDS, MAGNETOMETERS, MANUALS, FERRITE, MAGNETOMETER
334
334
Jul 11, 2010
07/10
by
Selcuk, M. K
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The Vee-Trough/Evacuated Tube Collector (VTETC) was analyzed rigorously and various mathematical models were developed to calculate the optical performance of the vee-trough concentrators, and the quasi-steady state thermal performance of the evacuated tube receivers. Tests were run to verify the mathematical analyses. Back-silvered glass mirror, Alzak, Aluminized Teflon, and Kinglux (electropolished aluminum reflectors) were tested. Additional tests were run at temperatures ranging from 80 to...
Topics: GEOMAGNETISM, MAGNETOMETERS, ACCURACY, ONBOARD EQUIPMENT, RESOLUTION, SPACECRAFT INSTRUMENTS
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Jun 18, 2010
06/10
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Kerwin, W. J.; Munoz, R
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Method for demodulating spin-modulated data from magnetometer sensors mounted on spinning satellites
Topics: DEMODULATION, MAGNETOMETERS, SATELLITES, SENSORS, DEMODULATION, MAGNETOMETER, SATELLITE, SENSOR
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274
May 29, 2011
05/11
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Elliott, Dawn M.; Perry, R. Bra
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Within the NASA Aviation Systems Capacity Program, the Terminal Area Productivity (TAP) Project is addressing airport capacity enhancements during instrument meteorological condition (IMC). The Airborne Information for Lateral Spacing (AILS) research within TAP has focused on an airborne centered approach for independent instrument approaches to closely spaced parallel runways using Differential Global Positioning System (DGPS) and Automatic Dependent Surveillance-Broadcast (ADS-B)...
Topics: MAGNETOMETERS, MAGNETIC FIELDS, ATTITUDE (INCLINATION), ALGORITHMS, KALMAN FILTERS
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Jul 6, 2010
07/10
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Tevebaugh, M. D.; Nelson, J. P
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The effect is reported to design, fabricate, test and evaluate a prototype experimental system for the control of surgically induced infections. The purpose is to provide the cleanest possible environment within a hospital surgery room and eliminate contamination sources that could cause infections during surgery. The system design is described. The system provides for a portable laminar flow clean room, a full bubble helmet system with associated communications and ventilation subsystems for...
Topics: AURORAS, ELECTRON ENERGY, PHOTOMULTIPLIER TUBES, MAGNETOMETERS, SPECTRUM ANALYSIS
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220
Jun 18, 2010
06/10
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Burrows, K.; Hall, S. H
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Geomagnetic field measurements from rockets using proton magnetometer
Topics: AUSTRALIA, GEOMAGNETISM, MAGNETOMETERS, PROTONS, GEOMAGNETIC FIELD, MAGNETOMETER, ROCKET MEASUREMENT
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Jun 17, 2010
06/10
by
Bertin, F.; Papet-Lepine, J
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Missile attitude restoration with aid of three magnetometers and emitting electric dipole
Topics: ATTITUDE (INCLINATION), ELECTRIC DIPOLES, MAGNETOMETERS, MISSILES, RESTORATION, ATTITUDE, MISSILE
The NPSAT1 project is a Naval Postgraduate School (NPS) educational small satellite combining student education in satellite systems and operations, institutional research, and sponsored experiments with the objective of testing technologies for applications in space flight. The micro-electro-mechanical system (MEMS) rate sensor is one of these experimental technologies. Packaging three of these MEMS sensors together makes a 3-axis rate sensor suite. The MEMS experiment was originally conceived...
Topics: Magnetometers, Space flight, Education, Artificial satellites, Microelectromechanical systems,...
Bell System Technical Journal, 28: 4. October 1949 pp 753. Contributors to this Issue.
Topics: engaged, bell, electrical, magnetometers, engineering, airborne, microwave, telephone, electronic,...
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No Abstract Available
Topics: LYMAN ALPHA RADIATION, MAGNETOMETERS, RANGER 1 LUNAR PROBE, RANGER 2 LUNAR PROBE
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228
May 30, 2011
05/11
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Simpson, James J
texts
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The primary objectives of the Geostationary Meteorological Satellite (GMS)-5 Pathfinder Project were the following: (1) to evaluate GMS-5 data for sources of error and develop methods for minimizing any such errors in GMS-5 data; (2) to prepare a GMS-5 Pathfinder data set for the GMS-5 Pathfinder Benchmark Period (1 July 95 - 30 June 96); and (3) show the usefulness of the improved Pathfinder data set in at least one geophysical application. All objectives were met.
Topics: GLOBAL POSITIONING SYSTEM, MAGNETOMETERS, NAVIGATION SATELLITES, ATTITUDE (INCLINATION),...
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May 29, 2011
05/11
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Pinker, Rachel T.; Laszlo, I
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The objectives of this project were: (1) To incorporate into an existing version of the University of Maryland Surface Radiation Budget (SRB) model, optical parameters of forest fire aerosols, using best available information, as well as optical properties of other aerosols, identified as significant. (2) To run the model on regional scales with the new parametrization and information on forest fire occurrence and plume advection, as available from NASA LARC, and test improvements in inferring...
Topics: MAGNETIC MEASUREMENT, MAGNETOMETERS, MAGSAT SATELLITES, GEOMAGNETISM, MAGNETIC FIELDS, SPHERICAL...
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May 27, 2011
05/11
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Chato David J.; Dalton, Penni J.; Dodge, Franklin T.; Green, Stev
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The Liquid Motion Experiment (LME), designed to study the effects of liquid motion in rotating tanks, was flown on STS 84. LME was essentially a spin table that created a realistic nutation motion of scale-model tanks containing liquid. TWo spherical and two cylindrical transparent tanks were tested simultaneously, and three sets of such tanks were employed to vary liquid viscosity, fill level, and propellant management device (PMD) design. All the tanks were approximately 4.5 inches diameter....
Topics: PROTONS, MAGNETOMETERS, GROUND STATIONS, BIAS, VECTORS (MATHEMATICS), SCALARS, INTERNATIONAL...
Implementation of a new operating system, including hardware and software for the magnetometer network was discussed. A computer package for filtering and spectral analysis was described, including flow chargs, user's directory, mathematical foundations and examples.
Topics: DTIC Archive, D'Agostino, Ralph B, BOSTON UNIV MA, *MAGNETOMETERS, COMPUTER PROGRAMS, COMPUTER...
The goal of this program was to identify applications for which the unique properties of the nitrogen-vacancy (NV) diamond magnetometer gives a significant advantage. Most of the effort concentrated on improving the sensitivity of a single NV to the level where it could be used to detect a single nuclear spin at a distance of 10 nm. Scanning NV nanoprobe development was also explored and significant progress was made.
Topics: DTIC Archive, TEXAS ENGINEERING EXPERIMENT STATION COLLEGE STATION, *MAGNETOMETERS, NUCLEAR SPINS,...
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564
Aug 1, 2010
08/10
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Joseph, Charles L.; Jenkins, Edward B
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MSLAP is a software for analyzing spectra, providing the basic structure to identify spectral features, to make quantitative measurements of this features, and to store the measurements for convenient access. MSLAP can be used to measure not only the zeroth moment (equivalent width) of a profile, but also the first and second moments. Optical depths and the corresponding column densities across the profile can be measured as well for sufficiently high resolution data. The software was developed...
Topics: CALIBRATING, SCALARS, MAGNETIC FIELDS, MAGNETOMETERS, SPACECRAFT MODELS, GEOCENTRIC COORDINATES,...
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603
Jul 6, 2010
07/10
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ZELDOVICH, Y. B
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THE DISTRIBUTION OF THE CONCENTRATION PRODUCTS AND TEMPERATURE IS DISCUSSED IN THE COMBUSTION OF MIXED GASES. IT IS SHOWN THAT IN THE SIMPLEST CONDITIONS THESE CONCENTRATIONS AND TEMPERATURE AT THE SURFACE OF A FLAME ARE THE SAME AS IN THE COMBUSTION OF PREVIOUSLY PREPARED STOICHIOMETRIC MIXTURES OF THE SAME GASES. A POSSIBLE LIMIT WAS FOUND TO THE INTENSIFICATION OF COMBUSTION OF UNMIXED GASES, DEPENDING UPON THE LIMITING RATE OF THE CHEMICAL REACTION. IN ORDER OF MAGNITUDE, THIS LIMIT IS...
Topics: ATS 1, GEOMAGNETISM, MAGNETIC DISTURBANCES, MICROPULSATIONS, CORRELATION COEFFICIENTS, LEAST...
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Jul 26, 2010
07/10
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Herr, Joel L
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The NASA Charging Analyzer Program (NASCAP) computer code is a three dimensional finite element charging code designed to analyze spacecraft charging in the magnetosphere. Because of the characteristics of this problem, NASCAP can use an quasi-static approach to provide a spacecraft designer with an understanding of how a specific spacecraft will interact with a geomagnetic substorm. The results of the simulation can help designers evaluate the probability and location of arc discharges of...
Topics: EURECA (ESA), FLIGHT TESTS, GRAVITY GRADIOMETERS, MAGNETOMETERS, SPACEBORNE EXPERIMENTS,...
We developed a (3)He(-129)Xe nuclear spin gyroscope probed by (87)Rb atoms. We batch fabricated gyroscope cells with a yield exceeding 85percent and achieved (129)Xe T2 time of 300 sec and (3)He T2 time of 3.9 hours in a 2 mm cell. We developed techniques to supress (87)Rb spin-exchange relaxation, (129)Xe back-polarization, and (3)He dipolar magnetic field. In a 10 mm cell we achieved Angle Random Walk (AFR) of 0.025 deg/hour(1/2), bias drift of less than 0.01 deg/hour, and absolute bias of...
Topics: DTIC Archive, Romalis,Michael, Princeton University Princeton United States, Gyroscopes, Nuclear...
Target response coefficients for several commonly encountered munitions types and three munitions surrogates were calculated from measurements made using the Naval Research Laboratory Multi-sensor Towed Array Detection System (MTADS) magnetometer array. A best-practice method for making these measurements is presented. Results are presented for four locations in the continental United States: Welcome, MD; Black Hills Army Depot, SD; Hawthorne Army Depot, NV; and a site in Withlacoochee, FL. The...
Topics: DTIC Archive, NAVAL RESEARCH LAB WASHINGTON DC, *MAGNETOMETERS, AMMUNITION, GEOMAGNETISM,...
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Jun 26, 2011
06/11
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Kacpura, Thomas J.; Handler, Louis M.; Briones, Janette; Hall, Charles S
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This paper describes an update of the Space Telecommunications Radio System (STRS) open architecture for NASA space based radios. The STRS architecture has been defined as a framework for the design, development, operation and upgrade of space based software defined radios, where processing resources are constrained. The architecture has been updated based upon reviews by NASA missions, radio providers, and component vendors. The STRS Standard prescribes the architectural relationship between...
Topics: SOLAR SENSORS, AEROSPACE ENGINEERING, GEOMAGNETISM, FORMATION FLYING, LAUNCH VEHICLES, SYNCHRONOUS...
The DREStector concept should enable in situ assessment of the quantity and location of steel present or determination of the absence of steel in a target. When used in conjunction with field engineering skills, the device should assist the military engineer to rapidly identify and/or prepare a structural concrete target for explosive demolition. Other potential applications might include use as a training aid for target recognition and construction engineering uses.
Topics: DTIC Archive, Defence Research Establishment Suffield Suffield Canada, field equipment, REINFORCING...
A radiation source (12) for optical magnetometers (10) which use helium isotopes as the resonance element (30) includes an electronically pumped semiconductor laser (12) which produces a single narrow line of radiation which is frequency stabilized to the center frequency of the helium resonance line to be optically pumped. The frequency stabilization is accomplished using electronic feedback (34, 40, 42, 44) to control a current sources (20) thus eliminating the need for mechanical frequency...
Topics: NASA Technical Reports Server (NTRS), HELIUM ISOTOPES, MAGNETOMETERS, RADIATION SOURCES, PATENTS,...
Our objective was to build, test, and characterize a diver-held ferrous metal detector array with real-time processing algorithms that accurately determines the position, depth, and size of magnetic anomalies from unexploded ordnance (UXO). This was accomplished by using an array of low power, miniature, total field atomic magnetometers, with a new miniaturized electronics design using a novel digital approach. We achieved order of magnitude reductions in the size and power consumption of total...
Topics: DTIC Archive, Prouty,Mark, Geometrics San Jose United States, magnetometers, uxo detection,...
We investigated the feasibility of a femto-Tesla level scalar atomic magnetometer operating in Earths field. Our approach is unique in using multi-pass alkali-metal cells, quantum-non-demolition measurements, and suppression of spin-exchange relaxation to achieve the highest sensitivity per unit volume. We developed a new multi-pass cell geometry with a small internal volume and experimentally verified the predictions of our model for quantum spin noise. We also investigated the availability of...
Topics: DTIC Archive, Romalis,Michael, Princeton University Princeton United States, magnetometers,...
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Jun 21, 2010
06/10
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Howard, D. M
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Torsion wire damping system for Dodge satellite
Topics: LUNAR MAGNETIC FIELDS, MAGNETOMETERS, MECHANICAL ENGINEERING, STRUCTURAL DESIGN, CONFERENCES, LUNAR...
Topics: DTIC Archive, Lester,M, BOSTON UNIV MA DEPT OF ASTRONOMY, *Magnetic storms, Polarization,...
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Jul 21, 2010
07/10
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Ferluga, S.; Hack, M
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The preliminary results of the study of several high resolution spectrograms (lambda 3500 - lambda 7000 A), obtained at the Haute Provence Observatory (OHP) in France, at different epochs before, during and after the eclipse are reported. Some of these spectrograms are compared with corresponding IUE high resolution observations, in order to study the effects of the intrinsic UV activity, towards the longer wavelengths.
Topics: CLOSED CYCLES, JOSEPHSON JUNCTIONS, LIQUID HELIUM, MAGNETOMETERS, REFRIGERATORS, CRYOGENIC COOLING,...
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May 6, 2010
05/10
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Dimeff, J.; Gardner, M. S.; Murphy, R. S
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Reduction of fold-over errors in flux-gate magnetometers
Topics: ERROR CORRECTING DEVICES, ERRORS, MAGNETIC FIELDS, MAGNETOMETERS, SPACECRAFT, ERROR CORRECTING...
Due to historical training and disposal activity, MEC exist in the marine environment in a variety of underwater topographies ranging from open waters to bays to port areas to lakes and ponds. Although the geophysical sensors used for MEC detection in the marine environment magnetometers and pulsed EM are the same as those used in the terrestrial environment, there is not a one-size-fits-all solution due to differences in sea state and water depth. Cable-towed arrays are effective in large open...
Topics: DTIC Archive, ENVIRONMENTAL SECURITY TECHNOLOGY CERTIFICATION PROGRAM ALEXANDRIA VA,...
This scoring record documents the efforts of U.S. Army Corps of Engineers Engineering Research and Development Center (ERDC) to detect and discriminate inert unexploded ordnance (UXO) utilizing the YPG Standardized UXO Technology Demonstration Site Open Field. the scoring record was coordinated by Larry Overbay and the Standardized UXO Technology Demonstration Site Scoring Committee. Organizations on the committee include the U.S. Army Corps of Engineers, the Environmental Security Technology...
Topics: DTIC Archive, Overbay, Larry, Jr, ABERDEEN TEST CENTER MD, *DEMONSTRATIONS, *UNEXPLODED AMMUNITION,...
Prof M. G. Kivelson and Dr. K. K. Khurana (UCLA (University of California, Los Angeles)) are co-investigators on the Cluster Magnetometer Consortium (CMC) that provided the fluxgate magnetometers and associated mission support for the Cluster Mission. The CMC designated UCLA as the site with primary responsibility for the inter-calibration of data from the four spacecraft and the production of fully corrected data critical to achieving the mission objectives. UCLA will also participate in the...
Topics: NASA Technical Reports Server (NTRS), CLUSTER MISSION, MAGNETOMETERS, MULTISENSOR APPLICATIONS,...
The nitrogen-vacancy (NV) center in diamond has emerged as a promising platform for high sensitivity, vector magnetic field detection and high spatial resolution magnetic-field imaging due to its unique combination of optical and spin properties. NV diamond magnetometry has enabled a wide array of applications from the noninvasive measurement of a single neuron action potential to the mapping T-fields in m-size meteorite grains. To further improve the magnetic sensitivity of an ensemble NV...
Topics: DTIC Archive, Alsid,Scott T, MIT Lincoln Laboratory Lexington United States, magnetic fields,...
Topics: DTIC Archive, SCHONSTEDT, ERICK O, SCHONSTEDT ENGINEERING CO SILVER SPRING MD, *MAGNETOMETERS,...
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387
May 29, 2011
05/11
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Papila, Nilay; Shyy, Wei; Griffin, Lisa; Huber, Frank; Tran, Ke
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In this study, we present a method for optimizing, at the preliminary design level, a supersonic turbine for rocket propulsion system application. Single-, two- and three-stage turbines are considered with the number of design variables increasing from 6 to 11 then to 15, in accordance with the number of stages. Due to its global nature and flexibility in handling different types of information, the response surface methodology (RSM) is applied in the present study. A major goal of the present...
Topics: EVALUATION, GEOMAGNETISM, MAGNETOMETERS, ESTIMATES, ATTITUDE (INCLINATION), ERRORS, ORBIT...
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May 31, 2011
05/11
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Willenberg, Harvey J.; Fruhwirth, Michael A.; Potter, Seth D.; Leete, Stephen J.; Moe, Rud V
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The deep-space environment and relative transportation accessibility of the Weak Stability Boundary (WSB) region connecting the Earth-Moon and Sun-Earth libration points makes the Sun-Earth L2 an attractive operating location for future observatories. A summary is presented of key characteristics of future observatories designed to operate in this region. The ability to service observatories that operate within the region around the Lagrange points may greatly enhance their reliability,...
Topics: GROUND WATER, ICE, MARS SURFACE, MARS EXPLORATION, THIN FILMS, REMOTE SENSING, ELECTRIC FIELDS,...
Data collected from a magnetometer onboard ATS-1 indicate that at least three types of oscillations occur: oscillations with the magnetic component (1) prependicular to the background field, (2) parallel to the background field, and (3) in the meridional plane. Two modes of polarization were found to exist, parallel and perpendicular modes.
Topics: NASA Technical Reports Server (NTRS), ATS 1, MAGNETOHYDRODYNAMIC WAVES, POLARIZATION (WAVES),...
We have successfully developed a superconducting quantum interference device magnetometer employing nanoscale weak links (nanoSQUIDs) with a dispersive microwave readout. These sensors have a flux sensitivity of 25 nano01/Hzl/2, which translates into single Bohr magneton resolution (for a 1 Hz bandwidth) for magnets placed within 100 nm of the sensor-a very reasonable task for current e-beam and scanned probe lithography. In our nanoSQUID magnetometer, the SQUID is incorporated into a 5 GHz...
Topics: DTIC Archive, CALIFORNIA UNIV BERKELEY, *DETECTORS, MAGNETIZATION, MAGNETOMETERS, MICROWAVES,...
tuned amplifiers / oscillator - PAR
Topics: analyzer, rms, voltmeter, frequency, instrument, distortion, tuned, amplifier, magnetometers,...
This scoring record documents the efforts of Foerster Instruments, Inc. to detect and discriminate inert unexploded ordnance (UXO) utilizing the YPG Standardized UXO Technology Demonstration Site open field. Scoring Records have been coordinated by Mike Karwatka and the Standardized UXO Technology Demonstration Site Scoring Committee. Organizations on the committee include the U.S. Army Corps of Engineers, the Environmental Security Technology Certification Program, the Strategic Environmental...
Topics: DTIC Archive, Karwatka, Mike, ABERDEEN TEST CENTER MD, *UNEXPLODED AMMUNITION, *MAGNETOMETERS, TEST...
Under a task titled ESTCP/SERDP: Assessment of Traditional and Emerging Approaches to the Detection and Identification of Surface and Buried Unexploded Ordnance, the Institute for Defense Analyses (IDA) was assigned the responsibility to assist ESTCP in planning, executing, and scoring the classification demonstration carried out at San Luis Obispo, CA. IDA's principal functions were to provide seed emplacement locations and burial procedures, create a master anomaly list, develop scoring...
Topics: DTIC Archive, INSTITUTE FOR DEFENSE ANALYSES ALEXANDRIA VA, *UNEXPLODED AMMUNITION, CLASSIFICATION,...
A concept of operations for intrusion detection and border security is to put tripwires anywhere--in deserts, borders, or other remote areas where physical terrain does not constrain dismount or vehicle movement--to detect, classify and track intruders.
Topics: DTIC Archive, Arora, Anish, OHIO STATE UNIV COLUMBUS, *INTRUSION DETECTION, *MULTISENSORS,...
The report contains illustrations and tables of the geomagnetic field intensity at Bangkok, Thailand, for the period January-March 1966.
Topics: DTIC Archive, Barnes, Douglas J, STANFORD RESEARCH INST MENLO PARK CA, *GEOMAGNETISM, *THAILAND,...
