... Title : AN ACCURATE LABORATORY TEST SYSTEM USING COMMERCIAL EQUIPMENT FOR EDDY CURRENT MEASUREMENTS. ...

Accurate measurements of surface heights and atmospheric backscatter have been demonstrated with the

The objective of a number of optical instruments is to measure the intensity accurately without bias

This paper presents a system that accurately measures the distance travelled by ultrasound waves through the air. The simple design of the system and its obtained accuracy provide a tool for non-contact distance measurements required in the laser's optical system that ...

A measuring system is described for surveying and very accurately positioning objects with respect to a reference line. A principle use of this surveying system is for accurately aligning the electromagnets which direct a particle beam emitted from a part...

With the arrival of highly accurate multi-port pressure measurement systems, ... With multi-port pressure measurement systems, the sensing elements are ...

The objective of the procedure is to measure the ability of a gun control system to bring accurate and rapid fire to bear on stationary or moving targets. (Author)

Aug 18, 2011 ... Accurate temperature and pressure data are needed to evaluate chemical reaction rates as well as to determine accurate mixing ratios. ...

Feb 2, 2011 ... The Meteorological Measurement System (MMS) is a proven instrument to measure accurate, high resolution in situ airborne state measurements. ...

Jan 22, 2011... the measurement of accurate dynamical masses for stars in binary systems. ... dc.title, Taking the Measure of the Universe : precision ...

... UVR source than to simulate accurately the solar radiation spectrum. The need ... measurement by the detection 2 system. This has implications for AS/NZS ... ...

The paper presents a survey of improved measurement techniques, instrumentation, and data presentation for accurate, meaningful evaluation of electromagnetic compatibility (EMC) of electronic systems and sub-systems. These techniques and instrumentation w...

... designed and built enclosing the microwave plasma system to accurately determine the net energy transferred to the flowing gas. For a flow rate of ...

Instrument calibration enables accurate characterization of performance to enable collection and extraction of precise scientific measurements. The calibration ...

... Using animal tissues, this system has proven to be accurate and reliable, and we are in the process of starting measurements on breast tissues. ...

Successful navigation of an autonomous vehicle is made possible by accurately measuring real-time position and orientation. Positioning systems should provide fast, accurate and reliable operation through varying conditions. The current positioning system...

systems and custom software for accurate standardized PV measurements. This includes algorithms developed by the group over the years for calculating I-V characteristics and, for...

An apparatus and method for accurate measurement of a fluid mass in real time are described. The system is effective under conditions of reduced gravity and is used for urine collection and measurement during space flight. Diagrams of the device are provi...

JPL Home, Earth, Solar System, Stars & Galaxies, Technology ... The accumulated measurements of many people provides an accurate measure of the ... This information contains clues to the age and impact history of the body's surface. ...

Sep 18, 2009... and highly accurate positioning, attitude, and inertial measurements ... and GPS unit will be directly applicable to Crew Exploration Vehicle, ...

Within the United States, the national standard for radon measurements is embodied in a primary radon measurement system that has been maintained for over 50 years to accurately measure radon (222)Rn against international and national radium (226)Ra stand...

This research measures both user and non-user benefits from public transit systems in order to accurately measure total benefits of public provided transportation in rural areas. The contingent variation method (CVM) was used to measure the benefits of tr...

The accurate measurement of energy in the application of lidar system for CO2 measurement is critical. Different techniques of energy estimation in the online and offline pulses are investigated for post processing of lidar returns. The cornerstone of the...

Measurement of tree diameter growth is important in most forestry research. The electronic Addo-X system for measuring annual growth rings is described. The measurements, accurate to 0.01 mm, are recorded on printed tape and punched cards. The problems, t...

Timing-accurate storage emulation offers a unique capability: flexibility of simulation with the reality of experimental measurements. This allows a researcher to experiment with not-yet-existing storage components in the context of real systems executing...

Electronic gas measurement is not inherently or automatically more accurate than mechanical gas measurement. In fact, electronic measurement generally requires more transduction and signal conversion, so there are more opportunities for error. This paper reports on every aspect of gas ...

The purpose of filtering data, for range safety systems, is to remove unwanted noise from the measured data in order to determine, as accurately as possible, the space position, velocity and acceleration of the target.

From the site: "Sandia's photovoltaic systems departments assist industry and users by providing technical assistance, accurate performance measurements, component development and improvement, ... ...

Mar 2, 2011... Manufacturer: Buaer Associates, Inc., ELECTRO-OPTICAL SYSTEMS ... The system is accurate and immune to problems like vibration and ...

Sep 7, 2011 ... GLAS (Geoscience Laser Altimeter System) enables accurate surface level measurements of ice sheets. GLAS transmits four-nanosecond-wide ...

of systems with severe nonlinear behavior using a linear model to describe such a .... vector at time tk, #-k is the accurate model of the measurement ...

This research's focus was to build a prototype of a computerized liquid dispensing system. This liquid metering system is based on the concept of altering the representative volume to account for temperature changes in the liquid to be dispensed. This is ...

The NASA ER-2 aircraft is used as a platform for high altitude atmospheric missions. The Meteorological Measurement System (MMS) was designed specifically for atmospheric research to provide accurate, fast response, in situ measurements of pressure, tempe...

Energy Management Control Systems (EMCS) cannot function properly or efficiently without accurate temperature measurements since temperature is one of the fundamental measurements of any EMCS. This report was written for the purpose of describing various ...

A microprocessor-controlled measurement system has been designed and built to make accurate measurements of low pressures on a rotating wind turbine blade. This Pressure System Controller (PSC) is capable of simultaneously operating four pressure scanners...

We have recently completed a new modular system for accurate measurements of phase noise in oscillators, amplifiers, frequency synthesizers, and passive components. This new system is capable of measuring the phase noise at carrier frequencies from 5 MHz ...

... AD0244448. Title : A PROCEDURE FOR THE ACCURATE MEASUREMENT OF INFRARED DICHROISM OF ORIENTED FILMS. ...

... Title : A METHOD OF ACCURATELY MEASURING DYNAMIC STABILITY DERRIVATIVES IN TRANSONIC AND SUPERSONIC WIND TUNNELS,. ...

In the course of the history of precision engineering, there has been a growing need for accurately defined shapes and geometries, in order to measure and to manufacture in an accurate and repeatable way. The most basic geometries are a straight line (1-d...

To more accurately measure fluorescent signals from microarrays, we calibrated our acquisition and analysis systems by using groundtruth samples comprised of known quantities of red and green gene-specific DNA probes hybridized to cDNA targets. We imaged ...

A detailed and accurate earth gravity field model is important to the understanding of the structure and composition of the earth's crust and upper mantle. Various satellite-based techniques for providing more accurate models of the gravity field are anal...

The invention is a system designed to combine in a unique manner, precision timing, precision photogrammetric resection, radar mapping and electronic distance measurement to extend accurate geodetic control. This system enables a common grid coordinate sy...

The design and properties of an electronic humidity measuring system for the determination of the water-vapor content in air or other gases are described. The system is based on an integrated silicon dew-point sensor. After a discussion of the increasing ...

Very accurate alternating voltage measurement system is described. The system is based on a current comparator bridge and two standard capacitors. These capacitors are connected to input and output of a capacitive driver, and the ratio of currents through...

A limited investigation indicates that it may be feasible to develop a pulsed laser system capable of accurately measuring, in selected planes, the xyz coordinates of small caliber bullets fired from high rate-of-fire machine-guns. The system has the pote...

The Cryogenic High Accuracy Refraction Measuring System (CHARMS) at NASA's Goddard Space Flight Center has been enhanced in a number of ways in the last year to allow the system to accurately collect refracted beam deviation readings automatically over a ...

Traditionally law enforcement agencies have relied on basic measurement and imaging tools, such as tape measures and cameras, in recording a crime scene. A disadvantage of these methods is that they are slow and cumbersome. The development of a portable system that can rapidly record a crime scene with current camera imaging, 3D ...

Traditionally law enforcement agencies have relied on basic measurement and imaging tools, such as tape measures and cameras, in recording a crime scene. A disadvantage of these methods is that they are slow and cumbersome. The development of a portable system that can rapidly record a crime scene with current camera imaging, 3D ...

Gaia will provide astrometric measurements accurate enough for deriving the masses of spectroscopic binary (SB) components with uncertainties around 1%. A list of a bit less than 100 SB is set up for that purpose. However, the spectroscopic elements of these systems need to be derived again from accurate radial ...

Aug 2, 2010... density, temperature, weight, and force are accurately measured and reported using metric units (SI-International System of Units); ...

... column experimental methods are developed, using polymer-free systems, that allow accurate measurement of Kds for hydrophobic PAHs in low ...

The goal for the SAMEX magnetograph's optical system is to accurately measure the polarization state

The data also indirectly contribute to accurate determination of water vapor and bounding chemical reaction rates. Airborne, high-frequency, in situ ...

The MMS provides high-resolution and accurate meteorological parameters ( pressure, temperature, turbulence index, and the 3-dimensional wind vector). ...

The MMS provides high-resolution and accurate meteorological parameters ( pressure, temperature, turbulence index, and the 3-dimensional wind vector). ...

Mar 2, 2011 ... LNG is transported aboard large tankers at minus 260 degrees Fahrenheit. ... Precision's LNG measurement and monitoring system aids accurate ...

diurnal temperature ranges. Results indicate that the Thermochron iButton is an accurate, inexpensive alternative to more expensive temperature data- ...

Jun 2, 2009 ... Map projections are needed to measure accurately the extent of ... Instrument: Narrow Angle Camera (NAC) of the Mercury Dual Imaging System ...

and accurately the spectral shift differentiates this system from the more conventional spectroscopic setups. The final arrangement involved a low plasma ...

... The deflection medium is a crystal material TeO2. The power of the electrical signal is 2W. ... FRadio-frequency Power Amplifier ...

Satellite and surface measurements, if they are to serve as a climate monitoring system, must be accurate enough to permit detection of changes of climate parameters on decadal time scales. The accuracy requirements are difficult to define a priori since ...

development, and mine collapse. Methods for monitoring land subsidence using Global Positioning System technology for the rapid and accurate measurement of changes in land-surface...

A new method of applying optic fiber sensor to high accurate ground deformation measurement, which is based on the idea about the optic fiber interference combined with fiber grating and the utilization of the characteristics of Bragg wavelength absolute measurement and high accurate relative ...

The LCLS undulator field integrals must be very small so that the beam trajectory slope and offset stay within tolerance. In order to make accurate measurements of the small field integrals, a long coil will be used. This note describes the design of the coil measurement system.

An accurate determination of the bone mineral mass of lumbar vertebrae is needed as a measurement of bone demineralization in weight-bearing bones in addition to the more routinely performed measurements of the extremities. A system was developed utilizin...

Accurate measurement of the angular position and angular velocity of the joints is essential in the control of a robot manipulator. This report analyses in detail the design and implementation of a measurement system for the CMU Direct Drive Arm using Hig...

A data acquisition system was developed to provide more accurate and consistent measurement of the degradation of solar arrays. A technique was developed for in-situ measurement of photovoltaic panels of sufficient quality to permit evaluation of electric...

The accurate determination of isotope abundances by any method requires that the measuring systems be calibrated using well characterized isotope reference materials. The National Bureau of Standards (NBS) and the Central Bureau for Nuclear Measurements (...

A method is described by which accurate measurements of ice movements were performed on the Ward Hunt Ice Shelf at Ward Hunt Island. Geodimeter distance measurements and angular theodolite measurements were combined in a system of triangulation-trilaterat...

Accurate measurements of the baseband frequency response of graded-index fibers are required both for quality assurance of fiber cables and for design of fiber transmission systems. As is well-known, the measured bandwidth is strongly affected by the laun...

A data fusion system with artificial neural networks (ANN) is used for fast and accurate classification of five earth surface conditions and surface changes, based on seven SSMI multichannel microwave satellite measurements. The measurements include brigh...

This document presents preliminary results for Phase III of a study to seek ways of developing more accurate measures and weightings to improve resource requirement predictions for operational and emerging weapon systems. These improved measures can then ...

The first and second field integrals in the LCLS undulators must be below a specified limit. To accurately measure the field integrals, a long coil system is used. This note describes a set of tests which were used to check the performance of the long coi...

A new thermospheric wind measurement technique is reported, which is based on a satellite electrostatic triaxial accelerometer (SETA) system capable of accurately measuring accelerations in the satellite's in-track, cross-track, ad radial directions. Cros...

A structural alignment sensor (SAS) was developed for use with large deployable antenna systems for contour measurement and/or active control. The SAS is a laser ranging system using frequency modulation and accurate phase measurement to determine distanc...

The report describes the evaluation of Measurement Assurance Experiments (MAEs) for determining the quality of within-laboratory test data. A general self-evaluative quality system is outlined and objective measures of data quality, precision and/or accur...

The optimum set of orbit inclinations for the measurement of the earth radiation budget from spacially integrating sensor systems was estimated for two and three satellite systems. The best set of the two were satellites at orbit inclinations of 80 deg an...

A new instrumentation system has been developed to measure the internal environment of solid rocket test motors during motor ignition. The system leverages conventional, analog gages with custom designed, electronics modules to provide safe, accurate, hig...

This paper describes a system for measuring soil water status quickly and accurately at several sites from a central location. The heart of the system is an instrument, developed at the Pacific Northwest Laboratory, that compensates for the capacitance in...

With the arrival of highly accurate multi-port pressure measurement systems, conditions that previously did not affect overall system accuracy must now be scrutinized closely. Errors caused by elevation differences between pressure sensing elements and mo...

The purpose of this work consists in the design a radon-222 gas measurement system utilizing a surface barrier detector with the objective to obtain a more accurate measurement for this isotope through an alpha particle spectrum and so to address as to av...

This study of an Air Force Integrated Readiness Measurement System was undertaken to assist the Air Force in the determination of its readiness posture. The goal of AFIRMS is to provide readiness information which is accurate, timely, and germane to wing ...

In general, it has been impossible to accurately know the phase-to-ground admittances of live three-phase three-line network systems, from calculation or measurement. For this reason the authors could not analyze accurately the line-to-ground fault phenomena, especially at high impedance grounding, in live network ...

We present an effective method for the accurate three-dimensional (3D) measurement of small industrial parts under a complicated noisy background, based on stereo vision. To effectively extract the nonlinear features of desired curves of the measured parts in the images, a strategy from coarse to fine extraction is employed, based on a ...

Energy expenditure can be calculated via measurement of oxygen consumption and carbon dioxide production. Precise measurement of expired gas concentrations and volume is required for this determination. For a given gas concentration measurement system, the establishment of a model is a good way to effectively use ...

The Earth Terminal Measurement System (ETMS) was developed to make accurate measurements of Earth terminal parameters such as the figure of merit (G/T), antenna gain relative to a peproducible reference level, the noise equivalent flux (NEF), and noise ulterior flux (NUF). This manual includes the theory of the ...

The paper put forward two coal yard reserves measurement technical schemes based on passive stereovision, which adopt travel crane plane scanning structure to measure coal stack cubage accurately with high precision space distance measuring technology and large size image splicing technology. The hardware ...

The temperature, humidity, wind, and pressure system (THWAPS) provide surface reference values of these measurements for balloon-borne sounding system (SONDE) launches. The THWAPS is located adjacent to the SONDE launch site at the Southern Great Plains (SGP) Central Facility. The THWAPS system is a combination of ...

A non-contact, high-resolution laser ranging device has been incorporated into an instrument for accurately mapping the surface of WECS airfoils in the field. Preliminary scans of composite materials and bug debris show that the system has adequate resolution to accurately map bug debris and other surface contamination. This ...

Efficient and accurate measurement of natural gas is discussed. Advanced electronic technology makes accurate and timely measurement feasible. However, the key to the success of custody-transfer systems is integrating field measurement and office procedures. Electronic ...

The 'Scuba Master' diver's watch represents a new concept. It was developed and announced in 1990. This watch automatically displays information necessary for safe scuba diving and records diving data. The watch was well accepted by divers all over the world. Safe diving techniques were investigated. This led to the need for developing a highly accurate, highly reliable depth ...

This paper presents a system that provides a key element to computational electromagnetic modeling (CEM), that of creating the geometric model to be analyzed. The primary intent of the system is to automate the measurement and construction of accurate phy...

A system was designed and built to dilute highly reactive and extremely toxic rocket oxidizers safely. This system accomplished the operations of accurate pressure measurement, vapor transfer, precise addition of inert gas, secure storage of pure and dilu...

In 1996, DCIEM initiated a preliminary study to explore the feasibility of developing a lowcost automated system capable of accurately measuring and sizing individuals. The purpose of this system is to help make the distribution of clothing and equipment ...

This paper offers arguments to support the contention that a differential GPS measurement system is required for missile intercept flight testing. Simply stated there is no other system capable of sufficiently accurate relative 3-dimensional position meas...

The report discusses a Hybrid Navigational System for low altitude airborne tracking and for accurate calibration of range instrumentation equipment. System consists of an airborne inertial platform, transponder for Distance Measuring Equipment (DME) inte...

A simple duct system was installed in an attic test module for a large scale climate simulator at a US national laboratory. The goal of the tests and subsequent modeling was to develop an accurate method of assessing duct system performance in the laborat...

SIREHNA has developed, for the French Ministry of Defence, a demonstrator of an automatic decking system for VTOL UAV on naval platform. This system allows to: (1) Accurately and continuously measure the position of the UAV with respect to the centre of t...

A swept-frequency system is described which permits the convenient evaluation of many RF parameters of biological and chemical samples. This system is capable of highly accurate magnitude measurements which can provide not only absorption information but ...

A swept-frequency system is described which permits the convenient evaluation of many RF parameters of biological and chemical samples. This system is capable of highly accurate magnitude measurements which can provide not only absorption information but also the complex permitti...

Students measure a variety of objects in both metric and English systems. It is recommended that everyone in the group take each measurement and they then average them to obtain the most accurate measurement for the item. The next step is to create the ratios, convert them to decimals to two ...

The article analyzes the present volume measuring and mapping system used for coal yard, and presents a principle which connects phase-modulating laser ranging with high- accurate angle scanning, to fulfill an effective system of measuring and mapping the volume of heaps of coal. This ...